High efficiency double-wing overlapping combustion gas distributor

Abstract

The present invention provides a high-efficiency double-wing overlapping combustion gas distributor, which has a main pipe extending in the horizontal direction, and branch pipes are connected to the left and right sides of the main pipe. The branch pipe on the left side is divided into a left lower branch pipe and a left upper branch pipe, and the left lower branch pipe and the left upper branch pipe are arranged in a staggered manner; the branch pipe on the right side is divided into a right lower branch pipe and a right upper branch pipe, and the right lower branch pipe and the right upper branch pipe are arranged in a staggered manner; all branch pipes are connected to the main pipe through flanges. The present invention changes the distributor into a double-wing arrangement, and the double-wing branch pipes are arranged in two overlapping layers on both sides, so as to realize full utilization of the bottom space of the water bath. All branch pipes are connected to the main pipe through flanges, which can facilitate installation, disassembly and maintenance, and can also realize standardization and serialization of the distributor.

Description

Technical Field

[0001] The present invention relates to a distributor for a submerged combustion gasifier system in an LNG receiving station. Background Art

[0002] In LNG receiving stations, a submerged combustion vaporizer (SCV) system is usually configured in the vaporization unit. In the submerged combustion vaporizer (SCV) system, a distributor is used in the water bath to obtain intense circulating water flow outside the heat transfer tube and increase the heat exchange efficiency.

[0003] The common distributor includes: main pipeline, single-side branch pipe, exhaust hole and main pipeline support. A large amount of high-temperature combustion gas generated by the combustion of fuel gas and air in the combustion chamber first enters the single-side branch pipe connected by welding through the main pipeline, and then enters the water bath from the exhaust hole in the single-side branch pipe to generate a large amount of combustion gas bubbles. These combustion gas bubbles heat the LNG in the heat exchange pipe through heat exchange with water, gasifying it into gaseous natural gas.

[0004] In the prior art solution, the structure of the distributor is a single-side branch pipe, and the number of bubbles generated by the distributor is not enough, resulting in low heat exchange efficiency between the high-temperature combustion gas bubbles and water, causing huge energy waste.

[0005] The shortcomings of the prior art are summarized as follows:

[0006] 1. The branch pipe is unilateral, and the number of bubbles generated is small;

[0007] 2. The distribution efficiency of the distributor in the water bath is low;

[0008] 3. The space utilization rate at the bottom of the water bath is low;

[0009] 4. SCV heat exchange efficiency is low;

[0010] 5. Causes huge waste of energy;

[0011] 6. The single-side branch pipe is a welded structure, which is very inconvenient to transport, disassemble and repair. Summary of the invention

[0012] The invention provides a high-efficiency double-wing overlapping combustion gas distributor, the purpose of which is to improve the heat exchange efficiency of a heat exchange tube and prevent the water bath from freezing in winter.

[0013] To achieve the above object, the technical solution adopted by the present invention is:

[0014] A high-efficiency double-wing overlapping combustion gas distributor has a main pipe extending in the horizontal direction, characterized in that branch pipes are connected to both the left and right sides of the main pipe, wherein:

[0015] The branch pipe on the left is further divided into a left lower branch pipe and a left upper branch pipe;

[0016] The branch pipe on the right side is further divided into a right lower branch pipe and a right upper branch pipe.

[0017] The high-efficiency double-wing overlapping combustion gas distributor, wherein:

[0018] The left lower branch pipe and the left upper branch pipe are arranged in a staggered manner, so that the branch pipes on the left are arranged in a zigzag shape as a whole;

[0019] The right lower branch pipe and the right upper branch pipe are arranged in a staggered manner, so that the branch pipes on the right side are arranged in a zigzag shape as a whole.

[0020] The high-efficiency double-wing overlapping combustion gas distributor, wherein: the branch pipe located on the left side and the branch pipe located on the right side are coaxially arranged with each other.

[0021] The high-efficiency double-wing overlapping combustion gas distributor, wherein: the exhaust holes on all branch pipes open upward.

[0022] The high-efficiency double-wing overlapping combustion gas distributor, wherein: all branch pipes are connected to the main pipe through flanges.

[0023] The high-efficiency double-wing overlapping combustion gas distributor, wherein: the exhaust holes on each branch pipe are arranged in a zigzag shape.

[0024] The advantages of the present invention are as follows:

[0025] 1. Greatly improve the distribution efficiency of the distributor;

[0026] 2. Significantly improve the heat exchange efficiency of SCV;

[0027] 3. Improve the space utilization at the bottom of the water bath;

[0028] 4. Save energy;

[0029] 5. Convenient for distributor installation, commissioning, start-up, operation and maintenance;

[0030] 6. Implement standardization and serialization of distributors. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a top view of the present invention;

[0032] Figure 2 It is a front view of the present invention;

[0033] Figure 3 is a side view of the present invention;

[0034] Figure 4 This is a schematic diagram of the exhaust hole arrangement on the branch pipe.

[0035] Explanation of reference numerals: left lower branch pipe 1; left upper branch pipe 2; main pipe 3; right upper branch pipe 4; right lower branch pipe 5; flange 6; exhaust hole 7. DETAILED DESCRIPTION

[0036] like Figure 1-Figure 4 As shown, the present invention provides a high-efficiency double-wing overlapping combustion gas distributor, which has a main pipe 3 extending in the horizontal direction, and branch pipes are connected to the left and right sides of the main pipe 3 to form a double-wing structure, and each branch pipe is arranged with a plurality of exhaust holes 7; wherein:

[0037] The branch pipe on the left side is further divided into a left lower branch pipe 1 and a left upper branch pipe 2. The left lower branch pipe 1 and the left upper branch pipe 2 are arranged in a staggered manner, so that the branch pipe on the left side is arranged in a zigzag shape as a whole (such as Figure 2 As shown), the bottom area of ​​the water bath is covered without dead corners;

[0038] The branch pipe on the right side is further divided into a right lower branch pipe 5 and a right upper branch pipe 4. The right lower branch pipe 5 and the right upper branch pipe 4 are arranged in a staggered manner, so that the branch pipe on the right side is arranged in a zigzag shape as a whole (such as Figure 2 As shown), the bottom area of ​​the water bath is covered without dead corners;

[0039] For example Figure 2 As shown, the branch pipe on the left is coaxially arranged with the branch pipe on the right;

[0040] like Figure 3 As shown, all branch pipes are connected to the main pipe 3 through flanges 6 to facilitate installation, disassembly and maintenance, and also to achieve standardization and serialization of distributors.

[0041] Moreover, if Figure 3 As shown, the exhaust holes 7 on all branch pipes are open upward.

[0042] like Figure 4 As shown, the exhaust holes 7 on each branch pipe are arranged in a zigzag shape to increase the bubble coverage.

[0043] In summary, the present invention changes the distributor into a double-wing arrangement, and the double-wing branch pipes are arranged in two overlapping layers on both sides, thereby achieving full utilization of the bottom space of the water bath.

[0044] Finally, the advantages of the present invention are summarized as follows:

[0045] 1. Greatly improve the distribution efficiency of the distributor;

[0046] 2. Significantly improve the heat exchange efficiency of SCV;

[0047] 3. Improve the space utilization at the bottom of the water bath;

[0048] 4. Save energy;

[0049] 5. Convenient for distributor installation, commissioning, start-up, operation and maintenance;

[0050] 6. Implement standardization and serialization of distributors.

[0051] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the claims, but all will fall within the scope of protection of the present invention.

Claims

1. A high-efficiency double-wing overlapping combustion gas distributor having a main pipe extending in a horizontal direction, characterized in that: Multiple branch pipes are connected along the length direction on both sides of the main pipe, and multiple exhaust holes are arranged on each branch pipe, including: The branch pipe on the left side is further divided into a left lower branch pipe and a left upper branch pipe. The left lower branch pipe and the left upper branch pipe are arranged in a staggered manner, so that the branch pipe on the left side is arranged in a zigzag shape as a whole; The branch pipe on the right side is further divided into a right lower branch pipe and a right upper branch pipe. The right lower branch pipe and the right upper branch pipe are arranged in a staggered manner, so that the branch pipe on the right side is arranged in a zigzag shape as a whole; Among them, all branch pipes are connected to the main pipe through flanges.

2. The high-efficiency double-wing overlapping combustion gas distributor according to claim 1 is characterized in that: The branch pipe on the left side and the branch pipe on the right side are coaxially arranged with each other.

3. The high-efficiency double-wing overlapping combustion gas distributor according to claim 2 is characterized in that: The exhaust holes on all branch pipes open upward.

4. The high-efficiency double-wing overlapping combustion gas distributor according to claim 1 is characterized in that: The exhaust holes on each branch pipe are arranged in a zigzag shape.

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