Compressed natural gas purification device

Abstract

The utility model belongs to the technical field of natural gas purification devices, and particularly relates to a compressed natural gas purification device which comprises a natural gas compressor, and a purification mechanism is fixedly mounted on the left side of the natural gas compressor; the purification mechanism comprises a main pipe, the right end of the main pipe communicates with the left side of the natural gas compressor, the outer surface of the main pipe communicates with a flow dividing assembly, the flow dividing assembly comprises a flow dividing pipe, a valve is fixedly installed on the outer surface of the flow dividing pipe, a filter box is fixedly installed on the outer surface of the flow dividing pipe, and a sealing rubber sleeve is fixedly installed on the inner surface of the filter box. The left end of the shunt pipe communicates with an air inlet pipe. According to the compressed natural gas purification device, natural gas enters the two flow dividing pipes through the gas inlet pipe, then enters the purification filter element in the filter box and is filtered by the filter block in the purification filter element for multiple times, and mercury and heavy hydrocarbon in the natural gas are accumulated in the filter block and accumulated in the storage box below the filter block through gravity; and the purified natural gas is gathered in the main pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of natural gas purification devices, and in particular to a compressed natural gas purification device. Background Technology

[0002] Natural gas refers to a type of combustible gas found in nature, a fossil fuel, and includes gases formed through various natural processes in the atmosphere, hydrosphere, and lithosphere. However, the commonly used definition of "natural gas" is a narrower one from an energy perspective, referring to a mixture of hydrocarbon and non-hydrocarbon gases naturally occurring in geological formations. In petroleum geology, it usually refers to oilfield gas and gas field gas. Its composition is primarily hydrocarbons, but it also contains non-hydrocarbon gases, thus producing a yellow or blue flame when burned.

[0003] Currently, natural gas is purified and compressed before being stored in storage tanks. However, this process presents the following problems in practice:

[0004] 1. As natural gas is continuously purified and compressed into storage tanks during extraction, the physical purification materials inside the natural gas purification equipment lose their effectiveness after a period of time and need to be replaced periodically. This process requires stopping the operation of the entire equipment. Therefore, a purification equipment that can quickly replace the physical purification filter element of natural gas without shutting down the machine is needed.

[0005] 2. During the natural gas purification and filtration process, impurities will accumulate between the filter element and the pipeline. Each time the filter element is replaced, it takes a period of time to clean the accumulated impurities, which further affects the efficiency of natural gas purification and compression. Utility Model Content

[0006] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0007] Specifically, the technical problem to be solved by this utility model is to provide a compressed natural gas purification device to solve the technical problem that the current natural gas purification process requires stopping the gas supply to replace the physical purification filter element and cleaning the impurities accumulated during filtration. The time spent in this process affects the compression efficiency of natural gas extraction and purification.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A compressed natural gas purification device includes a natural gas compressor, and a purification mechanism is fixedly installed on the left side of the natural gas compressor;

[0010] The purification mechanism includes a main pipe, the right end of which is connected to the left side of a natural gas compressor, and a diversion component is connected to the outer surface of the main pipe.

[0011] As an improved technical solution, the diversion assembly includes a diversion pipe, a valve is fixedly installed on the outer surface of the diversion pipe, a filter box is fixedly installed on the outer surface of the diversion pipe, a sealing sleeve is fixedly installed on the inner surface of the filter box, and an air inlet pipe is connected to the left end of the diversion pipe.

[0012] As an improved technical solution, the diversion assembly includes a fixed cover, the bottom of which is fixedly connected to the top of the filter box by hexagonal bolts, a top cylinder is fixedly installed at the bottom of the fixed cover, and a spring is fixedly installed in the inner cavity of the top cylinder.

[0013] As an improved technical solution, the purification mechanism further includes a purification component, which includes a purification filter element. The outer surface of the purification filter element is engaged with the inner surface of the filter box, and the outer surface of the purification filter element is connected to a storage box.

[0014] As an improved technical solution, the purification assembly further includes a fixing frame, the outer surface of which is fixedly connected to the inner surface of the purification filter element, and a filter block is fixedly installed on each of the two fixing frames on opposite sides.

[0015] As an improved technical solution, the purification assembly further includes a top rod, the bottom end of which is fixedly connected to the outer surface of the purification filter element, and the outer surface of the top rod is engaged with the inner surface of the top cylinder.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model, through the design of adding a quick-replacement purification filter device, utilizes the cooperation of a fixed filter box and purification filter element with a top rod and top cylinder, the cooperation of a spring and top rod with a filter box and fixed cover, the cooperation of a filter box and sealing sleeve with a purification filter element, and the cooperation of a main pipe and air inlet pipe with a branch pipe and valves. This achieves the effect of dividing the natural gas purification filter element into multiple parts, with multiple valves controlling the entry and exit. The purification filter element used for purifying natural gas can be quickly removed and replaced without shutting down the natural gas system.

[0018] 2. This utility model incorporates a design that stores impurities generated during natural gas filtration. By using the purification filter element and storage box in conjunction with the fixing frame and filter block, mercury and heavy hydrocarbons in the natural gas are blocked by the filter block and then drip into the storage box due to gravity. This ensures that the filter box remains clean when the purification filter element is replaced, eliminating the need to clean the filter box. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the compressed natural gas purification device of this utility model.

[0021] Figure 2 This is a partial three-dimensional cross-sectional view of the purification mechanism of the compressed natural gas purification device of this utility model.

[0022] Figure 3 This is a three-dimensional sectional view of the fixed cover, top cylinder, spring, and top rod of the compressed natural gas purification device of this utility model.

[0023] Figure 4 This is a partial three-dimensional cross-sectional view of the purification filter element of the compressed natural gas purification device of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Natural gas compressor; 2. Purification mechanism; 21. Main pipe; 22. Diverter assembly; 221. Diverter pipe; 222. Valve; 223. Filter box; 224. Sealing sleeve; 225. Fixing cover; 226. Hex bolt; 227. Top cylinder; 228. Spring; 23. Purification assembly; 231. Purification filter element; 232. Storage box; 233. Fixing frame; 234. Filter block; 235. Top rod; 24. Inlet pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0029] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figure 1 and Figure 2 As shown in the figure, this embodiment provides a compressed natural gas purification device, which includes a natural gas compressor 1 and a purification mechanism 2 fixedly installed on the left side of the natural gas compressor 1.

[0031] The purification unit 2 includes a main pipe 21, the right end of which is connected to the left side of the natural gas compressor 1, and the outer surface of the main pipe 21 is connected to a diversion component 22.

[0032] like Figure 1 and Figure 2 As shown, the diversion assembly 22 includes a diversion pipe 221, a valve 222 is fixedly installed on the outer surface of the diversion pipe 221, a filter box 223 is fixedly installed on the outer surface of the diversion pipe 221, a sealing sleeve 224 is fixedly installed on the inner surface of the filter box 223, and an air inlet pipe 24 is connected to the left end of the diversion pipe 221.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the diversion assembly 22 includes a fixed cover 225. The bottom of the fixed cover 225 is fixedly connected to the top of the filter box 223 by a hexagonal bolt 226. A top cylinder 227 is fixedly installed at the bottom of the fixed cover 225, and a spring 228 is fixedly installed in the inner cavity of the top cylinder 227.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, the purification mechanism 2 also includes a purification component 23, which includes a purification filter element 231. The outer surface of the purification filter element 231 is engaged with the inner surface of the filter box 223, and the outer surface of the purification filter element 231 is connected to a storage box 232.

[0035] like Figure 1, Figure 2 and Figure 4 As shown, the purification assembly 23 also includes a fixing frame 233. The outer surface of the fixing frame 233 is fixedly connected to the inner surface of the purification filter element 231. Filter blocks 234 are fixedly installed on opposite sides of the two fixing frames 233.

[0036] Filter block 234 is mainly composed of activated carbon and sulfide adsorption blocks, which can adsorb mercury and heavy hydrocarbons.

[0037] like Figure 1 , Figure 2 and Figure 4 As shown, the purification assembly 23 also includes a top rod 235, the bottom end of which is fixedly connected to the outer surface of the purification filter element 231, and the outer surface of the top rod 235 is engaged with the inner surface of the top cylinder 227.

[0038] During use, natural gas enters from the inlet pipe 24 into the two branch pipes 221, and then enters the purification filter element 231 in the filter box 223. It is filtered multiple times by the filter blocks 234 within the purification filter element 231, removing mercury and heavy hydrocarbons. These mercury and heavy hydrocarbons accumulate within the filter blocks 234 and, by gravity, settle in the storage tank 232 below the filter blocks 234. The purified natural gas then flows into the main pipe 21 and enters the natural gas compressor 1 for compression. When the purification filter element 231 needs to be replaced, the user first... Close the two valves 222 to prevent natural gas from entering the branch pipe 221 from the inlet pipe 24. Then unscrew the hex bolt 226 and open the fixing cover 225. Take out the purification filter element 231 in the filter box 223 and replace it with a new one. Then put the fixing cover 225 back on. At the same time, insert the top rod 235 into the top cylinder 227 of the fixing cover 225. The spring 228 drives the purification filter element 231 downward through the top rod 235 to push it up. Then fix the fixing cover 225 with the hex bolt 226.

[0039] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A compressed natural gas purification apparatus comprising a natural gas compressor (1), characterized by: A purification mechanism (2) is fixedly installed on the left side of the natural gas compressor (1); The purification mechanism (2) includes a main pipe (21), the right end of which is connected to the left side of the natural gas compressor (1), and the outer surface of the main pipe (21) is connected to a diversion assembly (22).

2. The compressed natural gas purification device of claim 1, wherein: The diversion assembly (22) includes a diversion pipe (221), a valve (222) is fixedly installed on the outer surface of the diversion pipe (221), a filter box (223) is fixedly installed on the outer surface of the diversion pipe (221), a sealing sleeve (224) is fixedly installed on the inner surface of the filter box (223), and an air inlet pipe (24) is connected to the left end of the diversion pipe (221).

3. The compressed natural gas purification device of claim 1, wherein: The diversion assembly (22) includes a fixed cover (225), the bottom of which is fixedly connected to the top of the filter box (223) by a hexagonal bolt (226), and a top cylinder (227) is fixedly installed at the bottom of the fixed cover (225), and a spring (228) is fixedly installed in the inner cavity of the top cylinder (227).

4. The compressed natural gas purification device of claim 1, wherein: The purification mechanism (2) further includes a purification component (23), which includes a purification filter element (231). The outer surface of the purification filter element (231) is engaged with the inner surface of the filter box (223), and the outer surface of the purification filter element (231) is connected to a storage box (232).

5. The compressed natural gas purification device of claim 4, wherein: The purification component (23) also includes a fixing frame (233), the outer surface of the fixing frame (233) is fixedly connected to the inner surface of the purification filter element (231), and a filter block (234) is fixedly installed on the opposite side of the two fixing frames (233).

6. The compressed natural gas purification device of claim 4, wherein: The purification component (23) also includes a top rod (235), the bottom end of which is fixedly connected to the outer surface of the purification filter element (231), and the outer surface of the top rod (235) is engaged with the inner surface of the top cylinder (227).

Images