Distributed natural gas hydrogen doping device

Abstract

The utility model belongs to the technical field of natural gas hydrogen doping equipment, and particularly relates to a distributed natural gas hydrogen doping device which comprises a main pipeline communicated with a hydrogen pipeline. A confluence pipeline corresponding to the main pipeline is fixedly connected in the main pipeline, and a side mixing area is formed between the confluence pipeline and the main pipeline; a side through hole corresponding to the side mixing area is formed in the confluence pipeline; a mixing outlet corresponding to the side mixing area is formed between one end, far away from the side through hole, of the confluence pipeline and the main pipeline; a flow dividing block corresponding to the end, away from the side penetrating hole, of the backflow pipeline is fixedly connected into the main pipeline, and an outer confluence cylinder corresponding to the flow dividing block and the mixing outlet is arranged in the main pipeline. The natural gas hydrogen doping device effectively solves the problems that when an existing natural gas hydrogen doping device is used, the cost is high, and the mixing uniformity is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural gas hydrogen blending equipment, and specifically relates to a distributed natural gas hydrogen blending device. Background Art

[0002] HCNG, a new alternative fuel gas, is created by mixing hydrogen and natural gas in a certain ratio. HCNG combines the advantages of hydrogen's fast combustion rate and wide lean burn limit, thereby improving the combustion rate of the natural gas mixture and engine performance, while reducing emissions.

[0003] When mixing hydrogen with natural gas, the natural gas and hydrogen need to be mixed through a natural gas hydrogen blending device; however, existing natural gas hydrogen blending devices have problems of high cost and low mixing uniformity when used. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a distributed natural gas hydrogen blending device, which effectively solves the problems of high cost and low mixing uniformity in the existing natural gas hydrogen blending device during use.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a distributed natural gas hydrogen blending device, comprising a main pipeline, which is connected to a hydrogen pipeline; a confluence pipeline corresponding to the main pipeline is fixedly connected to the main pipeline, and a side mixing zone is formed between the confluence pipeline and the main pipeline; a side perforation corresponding to the side mixing zone is provided on the confluence pipeline, and a mixing outlet corresponding to the side mixing zone is formed between the end of the confluence pipeline away from the side perforation and the main pipeline; a diversion block corresponding to the end of the return pipeline away from the side perforation is fixedly connected to the main pipeline, and an external confluence cylinder corresponding to the diversion block and the mixing outlet is provided in the main pipeline.

[0006] Furthermore, a spiral guide plate corresponding to the side mixing zone is fixedly connected to the outer wall of the confluence pipe.

[0007] Furthermore, a merging block corresponding to the outer merging tube is fixedly connected to the diversion block.

[0008] Furthermore, a connecting pipe is fixedly connected to the outer confluence cylinder, and a diversion cylinder is connected to the connecting pipe.

[0009] Furthermore, one end of the confluence pipe away from the side through-hole is fixedly connected to a first support frame fixedly connected to the inner wall of the main pipe.

[0010] Furthermore, a second support frame fixedly connected to the outer confluence tube is fixedly connected to the diversion block.

[0011] Furthermore, the converging pipe includes a converging portion corresponding to the main pipe, and the converging portion is connected to a diverting portion corresponding to the diverting block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the utility model is in use, two flow paths of natural gas are formed by cooperating with the confluence pipe, the side perforation and the main pipe; the natural gas and hydrogen are mixed in the side mixing zone at the first level, and are mixed in the second level under the action of the diverter block and the external confluence cylinder, so as to improve the mixing effect of the natural gas and hydrogen; in addition, the utility model realizes automatic mixing of the natural gas and hydrogen through the arrangement of the confluence pipe, the diverter block, the external confluence cylinder and other structures, which can effectively reduce the cost of mixing the natural gas and hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] In the figure: 1. Main pipeline, 2. Hydrogen pipeline, 3. Side perforation, 4. Converging pipeline, 5. Guide plate, 6. Diverter block, 7. Merging block, 8. External merging tube, 9. Connecting pipeline, 10. Diverter tube. DETAILED DESCRIPTION

[0016] A distributed natural gas hydrogen blending device, such as Figure 1 As shown, it includes a main pipeline 1, which is connected to a hydrogen pipeline 2; a converging pipeline 4 corresponding to the main pipeline 1 is fixedly connected in the main pipeline 1, and a side mixing zone is formed between the converging pipeline 4 and the main pipeline 1; a side perforation 3 corresponding to the side mixing zone is provided on the converging pipeline 4, and a mixing outlet corresponding to the side mixing zone is formed between the end of the converging pipeline 4 away from the side perforation 3 and the main pipeline 1; a diversion block 6 corresponding to the end of the return pipeline away from the side perforation 3 is fixedly connected in the main pipeline 1, and an external converging tube 8 corresponding to the diversion block 6 and the mixing outlet is provided in the main pipeline 1.

[0017] When this application is used, Figure 1 As shown, two flow paths for natural gas are formed by cooperating with the converging pipe 4, the side perforations 3 and the main pipe 1; the natural gas flowing into the side mixing zone between the converging pipe 4 and the main pipe 1 through the side perforations 3 is mixed with the hydrogen flowing in from the hydrogen pipe 2 in a primary manner; the natural gas and hydrogen after the primary mixing flow out through the mixing outlet, and the natural gas flowing out of the converging pipe 4 is mixed with the natural gas and hydrogen mixture in a secondary manner under the action of the diverter block 6. After diversion by the diverter block 6 and confluence by the external converging tube 8, the natural gas and hydrogen are mixed in a secondary manner to improve the mixing effect of the natural gas and hydrogen.

[0018] Furthermore, a spiral guide plate 5 corresponding to the side mixing zone is fixedly connected to the outer wall of the confluence pipe 4. The guide plate 5 is used to guide the natural gas and hydrogen so that the natural gas and hydrogen move in a circular motion. This not only effectively improves the uniformity of the mixing of the natural gas and hydrogen in the side mixing zone, but also enables the hydrogen to quickly fill the main pipe 1, so as to facilitate secondary mixing, thereby improving the uniformity of the hydrogen and natural gas mixing in this application.

[0019] Furthermore, a merging block 7 corresponding to the external merging tube 8 is fixedly connected to the diverter block 6 , and the merging block 7 cooperates with the external merging tube 8 to merge and mix the mixture of natural gas and hydrogen.

[0020] Furthermore, a connecting pipe 9 for converging the mixed gas is fixedly connected to the outer confluence tube 8 , and a diversion tube 10 for quickly dispersing the mixed gas into the main pipe 1 is connected to the connecting pipe 9 .

[0021] Furthermore, one end of the confluence pipe 4 away from the side through-hole 3 is fixedly connected to a first support frame fixedly connected to the inner wall of the main pipe 1 ; one end of the confluence pipe 4 is supported by the first support frame to improve the stability of the confluence pipe 4 .

[0022] Furthermore, a second support frame fixedly connected to the outer junction tube 8 is fixedly connected to the diverter block 6 , and the diverter block 6 is supported by the second support frame to improve the stability of the diverter block 6 .

[0023] Furthermore, the converging pipe 4 includes a converging portion corresponding to the main pipe 1 , the side through-holes 3 are provided on the converging portion, and the converging portion is connected to a diversion portion corresponding to the diversion block 6 .

Claims

1. A distributed natural gas hydrogen blending device, characterized by: The invention comprises a main pipeline (1), which is connected to a hydrogen pipeline (2); a confluence pipeline (4) corresponding to the main pipeline (1) is fixedly connected in the main pipeline (1), and a side mixing zone is formed between the confluence pipeline (4) and the main pipeline (1); a side perforation (3) corresponding to the side mixing zone is provided in the confluence pipeline (4), and a mixing outlet corresponding to the side mixing zone is formed between an end of the confluence pipeline (4) away from the side perforation (3) and the main pipeline (1); a diversion block (6) corresponding to an end of the return pipeline away from the side perforation (3) is fixedly connected in the main pipeline (1), and an external confluence tube (8) corresponding to the diversion block (6) and the mixing outlet is provided in the main pipeline (1).

2. The distributed natural gas hydrogen blending device according to claim 1, characterized in that: The outer wall of the converging pipe (4) is fixedly connected with a spiral guide plate (5) corresponding to the side mixing zone.

3. The distributed natural gas hydrogen blending device according to claim 1, characterized in that: A merging block (7) corresponding to the outer merging cylinder (8) is fixedly connected to the diversion block (6).

4. The distributed natural gas hydrogen blending device according to claim 3, characterized in that: A connecting pipe (9) is fixedly connected to the outer confluence tube (8), and a diversion tube (10) is connected to the connecting pipe (9).

5. The distributed natural gas hydrogen blending device according to claim 1, characterized in that: One end of the converging pipe (4) away from the side perforation (3) is fixedly connected to a first support frame fixedly connected to the inner wall of the main pipe (1).

6. The distributed natural gas hydrogen blending device according to claim 1, characterized in that: A second support frame fixedly connected to the outer merging tube (8) is fixedly connected to the diverter block (6).

7. The distributed natural gas hydrogen blending device according to claim 1, characterized in that: The converging pipe (4) comprises a converging portion corresponding to the main pipe (1), and a diverting portion corresponding to the diverting block (6) is connected to the converging portion.

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