Natural gas membrane decarburization pretreatment device

Abstract

The utility model relates to the technical field of natural gas treatment, in particular to a natural gas membrane decarburization pretreatment device which comprises a decarburization tower body and a drying assembly, the drying assembly comprises a drying box and a plurality of drying structures, the drying box is fixedly mounted at the top of the decarburization tower body, the bottom of the drying box communicates with the decarburization tower body, the multiple drying structures are arranged in the drying box at intervals, each drying structure comprises a mounting frame and a drying plate, the mounting frames are slidably connected with the drying box, and the drying plates are fixedly connected with the mounting frames; natural gas is dried in the membrane decarburization pretreatment device, so that the problem that the inner wall of a natural gas pipeline is corroded due to water is effectively avoided, the service life of the pipeline is prolonged, and the working cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas processing technical field especially relates to a natural gas membrane method decarburization pretreatment device. BACKGROUND

[0002] The content of carbon dioxide in natural gas quality standard cannot be more than 3%, and carbon dioxide has very strong corrosiveness to steel after melting into water, and the existing natural gas decarburization technology mainly adopts chemical absorption method, generally adopts the absorption of the filler tower, passes into the filler tower to natural gas, adopts the way of absorption liquid and filler to carry out the decarburization treatment to natural gas, and the absorption liquid of the existing filler tower can only be used once during processing, sometimes the absorption liquid cannot fully react with CO2 in natural gas and is discharged outside the filler tower, causing the waste of absorption liquid and increasing the working cost.

[0003] The utility model patent with publication number CN216073709U provides a kind of for natural gas power generation's natural gas pretreatment's decarburization device, including filler tower, support frame is installed at the bottom of filler tower, filler tower one side installs inlet pipe, inlet pipe is communicated with the inside of filler tower, collection cover is installed in the inside of filler tower below, first orifice plate is installed above collection cover, first orifice plate is equipped with first regular filler above, first regular filler is equipped with bulk filler above, bulk filler is installed with first spraying mechanism above, filler tower one side is installed with circulation mechanism;Absorption liquid can react with natural gas multiple times by circulation mechanism, simultaneously by inlet pipe constantly has absorption liquid to enter, improve the concentration of circulating absorption liquid, it is favorable to react with natural gas, absorption liquid can be repeatedly used, so that absorption liquid can fully react with natural gas, avoid the waste of absorption liquid, reduce working cost.

[0004] But the above-mentioned absorption liquid is sprayed to natural gas by first spraying mechanism to carry out absorption to carbon dioxide in natural gas, so that the natural gas that decarburization is completed remains moisture, if not drying treatment, natural gas containing moisture is transported through natural gas pipeline, if there is water in natural gas pipeline, it can cause pipeline inner wall corrosion. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of natural gas membrane method decarburization pretreatment devices, dry treatment is carried out to natural gas, prevent natural gas pipeline inner wall corrosion.

[0006] To achieve the above object, the utility model provides a kind of natural gas membrane method decarburization pretreatment device, including decarburization tower body and drying component;The drying component includes drying cabinet and multiple drying structures, the drying cabinet is fixedly installed at the top of the decarburization tower body, the bottom of the drying cabinet is communicated with the decarburization tower body, multiple drying structures are interval arranged in the inside of the drying cabinet, the drying structure includes mounting frame and drying plate, the mounting frame is slidably connected with the drying cabinet, the drying plate is fixedly connected with the mounting frame, and the drying plate is located at the inside of the mounting frame.

[0007] Wherein, the inside of the drying cabinet is provided with connecting structure, the mounting frame has connecting port, the connecting structure includes spring and connecting support, the both ends of the spring are fixedly connected with the drying cabinet and the connecting support respectively, the spring is located in the inside of the drying cabinet, the connecting support is slidably connected with the drying cabinet, and the end of the connecting support away from the spring is located in the inside of the connecting port.

[0008] Wherein, the drying component further includes flow limiting plate, the flow limiting plate is fixedly connected with the drying cabinet, the flow limiting plate is located in the inside of the drying cabinet, and the flow limiting plate is located at the right side of the drying plate, and the flow limiting plate has flow limiting port.

[0009] Wherein, the drying component further includes adjusting structure, the adjusting structure includes mounting frame, adjusting screw and adjusting plate, the mounting frame is fixedly installed above the flow limiting plate, the adjusting plate is slidably connected with the flow limiting plate, the adjusting screw is threadedly connected with the mounting frame, and the bottom of the adjusting screw is rotatably connected with the top of the adjusting plate.

[0010] Wherein, the adjusting structure further includes rotating frame, the rotating frame is fixedly connected with the adjusting screw, and the rotating frame is located above the adjusting screw.

[0011] The utility model relates to a kind of natural gas membrane method decarburization pretreatment device, the inside of the drying cabinet is interval arranged with multiple drying structures, to be used to dry handling multiple times to natural gas.The mounting frame is used to install the drying plate, and the drying plate can dry handling to natural gas, to prevent natural gas pipeline inner wall from being corroded by water, the utility model is dry handled to natural gas in membrane method decarburization pretreatment device, effectively avoid the problem that natural gas pipeline inner wall is corroded by water, improve the pipeline life, reduce work cost. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows.

[0013] Fig. 1This is a schematic diagram of the structure of a natural gas membrane decarbonization pretreatment device according to the present invention.

[0014] Fig. 2 This is a structural cross-sectional view of a natural gas membrane decarbonization pretreatment device according to this utility model.

[0015] Fig. 3 This is a cross-sectional view of the interior of the drying chamber of a natural gas membrane decarbonization pretreatment device at the mounting frame.

[0016] 100-Decarbonization tower body, 210-Drying box, 220-Mounting frame, 221-Connection port, 230-Drying plate, 240-Spring, 250-Connecting bracket, 260-Flow limiting plate, 261-Flow limiting port, 310-Mounting frame, 320-Adjusting screw, 330-Adjusting plate, 340-Rotating frame. Detailed Implementation

[0017] 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.

[0018] Please see Figs. 1 to 3 , Fig. 1 This is a schematic diagram of the structure of a natural gas membrane decarbonization pretreatment device according to this utility model. Fig. 2 This is a structural cross-sectional view of a natural gas membrane decarbonization pretreatment device according to this utility model. Fig. 3 This is a cross-sectional view of the interior of the drying chamber of a natural gas membrane decarbonization pretreatment device at the mounting frame.

[0019] This utility model provides a natural gas membrane decarbonization pretreatment device, including a decarbonization tower body 100 and a drying component. The drying component includes a drying box 210, multiple drying structures, a flow limiting plate 260 and an adjustment structure. The drying structure includes a mounting frame 220 and a drying plate 230. The adjustment structure includes a mounting bracket 310, an adjusting screw 320, an adjusting plate 330 and a rotating frame 340.

[0020] For this specific embodiment, the drying box 210 is fixedly installed at the top of the decarburization tower body 100, the bottom of the drying box 210 is in communication with the decarburization tower body 100, a plurality of drying structures are arranged at intervals in the interior of the drying box 210, the mounting frame 220 is in sliding connection with the drying box 210, the drying plate 230 is fixedly connected with the mounting frame 220, and the drying plate 230 is located at the inner side of the mounting frame 220. The upper end left side of the drying box 210 is provided with an air inlet, and the lower end right side of the drying box 210 is in communication with the top of the decarburization tower body 100. A plurality of drying structures are arranged at intervals in the interior of the drying box 210 for multiple drying treatments of natural gas. The mounting frame 220 is used for mounting the drying plate 230, and the drying plate 230 can dry the natural gas to prevent the inner wall of the natural gas pipeline from being corroded by water, and solve the problem that the water remains in the natural gas after the carbon dioxide in the natural gas is absorbed by the first spraying mechanism, and if the drying treatment is not performed, the water in the natural gas pipeline will cause the inner wall of the pipeline to be corroded. The mounting frame 220 can slide relative to the drying box 210, so that the drying plate 230 can be easily slid out of the drying box 210, so as to replace the drying plate 230 that has been used for a long time.

[0021] Further, the interior of the drying box 210 is provided with a connecting structure, the mounting frame 220 has a connecting port 221, the connecting structure includes a spring 240 and a connecting bracket 250, both ends of the spring 240 are fixedly connected with the drying box 210 and the connecting bracket 250 respectively, the spring 240 is located in the interior of the drying box 210, the connecting bracket 250 is in sliding connection with the drying box 210, and one end of the connecting bracket 250 away from the spring 240 is located in the interior of the connecting port 221. The connecting structure is used for fixing the mounting frame 220 and the drying box 210. The spring 240 abuts against the connecting bracket 250, so that one end of the connecting bracket 250 away from the spring 240 abuts into the connecting port 221, so that the mounting frame 220 cannot slide relative to the drying box 210, and the position of the mounting frame 220 is fixed, so as to fix the drying plate 230. When the drying plate 230 needs to be replaced, the connecting bracket 250 is pulled out of the interior of the connecting port 221, so that the mounting frame 220 can be pulled out of the interior of the drying box 210, so as to replace the drying plate 230 mounted in the interior of the mounting frame 220.

[0022] Specifically, the flow-limiting plate 260 is fixedly connected to the drying chamber 210. The flow-limiting plate 260 is located inside the drying chamber 210 and to the right of the drying plate 230. The flow-limiting plate 260 has a flow-limiting port 261. The flow-limiting plate 260 is provided with a flow-limiting port 261 to limit the flow of natural gas inside the drying chamber 210, thereby regulating the residence time of natural gas in the drying chamber 210.

[0023] The mounting bracket 310 is fixedly mounted above the flow-limiting plate 260. The adjusting plate 330 is slidably connected to the flow-limiting plate 260. The adjusting screw 320 is threadedly connected to the mounting bracket 310, and the bottom of the adjusting screw 320 is rotatably connected to the top of the adjusting plate 330. This adjusting structure is used to adjust the opening size of the flow-limiting port 261, thereby adjusting the flow rate of natural gas inside the drying chamber 210. The mounting bracket 310 is used to mount the adjusting screw 320. The adjusting screw 320 can rotate relative to the mounting bracket 310. When the adjusting screw 320 rotates, its length at both ends of the mounting bracket 310 changes, thereby causing the adjusting plate 330 to move up and down. The up-and-down movement of the adjusting plate 330 adjusts the size of the portion blocking the flow-limiting port 261, thereby adjusting the opening size of the flow-limiting port 261 and thus regulating the flow rate of natural gas inside the drying chamber 210.

[0024] Furthermore, the rotating frame 340 is fixedly connected to the adjusting screw 320, and the rotating frame 340 is located above the adjusting screw 320. The rotating frame 340 is provided on the top of the adjusting screw 320 so that the operator can rotate the adjusting screw 320 via the rotating frame 340.

[0025] When using a natural gas membrane decarbonization pretreatment device, the flow rate of natural gas inside the drying chamber 210 is first determined according to the actual situation. Then, the adjusting screw 320 is adjusted according to the flow rate, which in turn adjusts the portion of the adjusting plate 330 blocking the flow restriction port 261, thereby adjusting the flow rate of natural gas in the drying chamber 210. Then, the natural gas enters the drying chamber 210 through the air inlet in the upper left corner of the drying chamber 210, and after being dried by multiple drying plates 230, it enters the decarbonization tower 100 through the flow restriction port 261.

[0026] The above disclosure only shows one or more preferred embodiments of the present application, and cannot limit the scope of the present application. Those skilled in the art can understand that the implementation of all or part of the above processes, and the equivalent changes made according to the claims of the present application, still belong to the scope covered by the present application.

Claims

1. A natural gas membrane decarburization pretreatment device, comprising a decarburization tower body, characterized in that, It also comprises a drying assembly; The drying assembly comprises a drying box and a plurality of drying structures, the drying box is fixedly installed at the top of the decarburization tower body, the bottom of the drying box is communicated with the decarburization tower body, a plurality of drying structures are arranged in the interior of the drying box, the drying structure comprises a mounting frame and a drying plate, the mounting frame is in sliding connection with the drying box, the drying plate is in fixed connection with the mounting frame, and the drying plate is located on the inner side of the mounting frame.

2. The natural gas membrane decarburization pretreatment device according to claim 1, characterized in that, The interior of the drying box is provided with a connecting structure, the mounting frame is provided with a connecting port, the connecting structure comprises a spring and a connecting bracket, both ends of the spring are in fixed connection with the drying box and the connecting bracket respectively, the spring is located in the interior of the drying box, the connecting bracket is in sliding connection with the drying box, and the end of the connecting bracket, which is away from the spring, is located in the interior of the connecting port.

3. The natural gas membrane decarburization pretreatment device according to claim 1, characterized in that, The drying assembly further comprises a flow limiting plate, the flow limiting plate is in fixed connection with the drying box, the flow limiting plate is located in the interior of the drying box, the flow limiting plate is located on the right side of the drying plate, and the flow limiting plate is provided with a flow limiting port.

4. The natural gas membrane decarburization pretreatment device according to claim 3, characterized in that, The drying assembly further comprises an adjusting structure, the adjusting structure comprises a mounting frame, an adjusting screw and an adjusting plate, the mounting frame is fixedly installed above the flow limiting plate, the adjusting plate is in sliding connection with the flow limiting plate, the adjusting screw is in threaded connection with the mounting frame, and the bottom of the adjusting screw is in rotary connection with the top of the adjusting plate.

5. The natural gas membrane decarburization pretreatment device according to claim 4, characterized in that, The adjusting structure further comprises a rotary frame, the rotary frame is in fixed connection with the adjusting screw, and the rotary frame is located above the adjusting screw.

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