CN-224215938-U - Turbulent flow structure for heat exchange tube, heat exchanger and gas water heater

Abstract

The utility model discloses a turbulent flow structure for a heat exchange tube, a heat exchanger and a gas water heater, wherein the turbulent flow structure comprises a main body part, a turbulent flow plate and two adjacent turbulent flow plates, wherein a plurality of turbulent flow holes are formed in the main body part at intervals along the length direction, two end parts of the turbulent flow plate are respectively a water inlet end and a water outlet end, the turbulent flow plate is connected with the main body part, the turbulent flow plate corresponds to the turbulent flow holes, the connecting part of the turbulent flow plate and the main body part is positioned at the side of the corresponding turbulent flow hole close to the water inlet end, one of the adjacent two turbulent flow plates extends along the water flow direction towards the direction of a first surface deviating from the main body part, the other turbulent flow plate extends along the water flow direction towards the direction of a second surface deviating from the main body part, and the first surface and the second surface are arranged in a back way. The flow-disturbing structure has the advantages that the laminar flow state of water flow is broken through by the blocking effect of the spoiler, the uniformity of water flow is accelerated, the heat exchange efficiency is improved, the structure of the flow-disturbing structure is simple, the forming processing is convenient, and the production cost is reduced.

Inventors

• SU ZHAO
• SUN YUNLEI
• LIU YUN

Assignees

• 重庆海尔热水器有限公司
• 青岛经济技术开发区海尔热水器有限公司
• 海尔智家股份有限公司

Dates

Publication Date

20260508

Application Date

20250417

Claims (10)

1. 1. A turbulent flow structure for a heat exchange tube, comprising: A main body part, which is provided with a plurality of turbulence holes at intervals along the length direction, and two ends of the main body part are respectively a water inlet end and a water outlet end; The spoiler is connected with the main body part, corresponds to the spoiler hole, and is positioned at the corresponding connecting position of the spoiler and the main body part and is close to the water inlet end side; Two adjacent spoilers, one of them along the rivers direction towards deviating from the first surface direction of main part extends, another one along the rivers direction towards deviating from the second surface direction of main part extends, first surface with the second surface is arranged dorsad.
2. 2. The structure according to claim 1, wherein the spoiler is a flange formed by punching the main body portion at the spoiler hole, or the spoiler is connected to the main body portion by welding.
3. 3. The structure according to claim 1, wherein the respective connecting points of the spoiler and the main body portion are arranged in parallel in a straight line.
4. 4. The turbulent flow structure for a heat exchange tube according to claim 1, wherein turbulent flow holes are further formed in the main body portion, and the turbulent flow holes are arranged with the turbulent flow Kong Jiaoti.
5. 5. The flow disturbing structure for heat exchange tube according to claim 4, wherein the flow disturbing hole is rectangular and is arranged obliquely on the main body portion; And in the same group of flow units, water flows from the side of the main body part, which is away from the spoiler, flows into the turbulence holes and the turbulence holes, and flows into the next group of flow units to form a spiral waterway.
6. 6. The turbulent flow structure for a heat exchange tube according to claim 1, further comprising: And a support member having one end connected to the main body portion and the other end extending in a direction away from the main body portion, the support member being configured to abut against an inner wall surface of the heat exchange tube.
7. 7. The flow disturbing structure for heat exchange tubes according to claim 6, wherein the supporting member is punched from the main body portion or the supporting member is connected with the main body portion by welding.
8. 8. The flow disturbing structure for a heat exchange tube according to claim 1, wherein the water inlet end and/or the water outlet end is formed with a convex portion configured to abut against an inner wall surface of the heat exchange tube in a width direction of the main body portion.
9. 9. A heat exchanger, comprising: a heat exchange tube; the turbulence structure for a heat exchange tube as recited in any one of claims 1 to 8, provided in the heat exchange tube.
10. 10. A gas water heater comprising a heat exchanger as claimed in claim 9.

Description

Turbulent flow structure for heat exchange tube, heat exchanger and gas water heater Technical Field The utility model belongs to the technical field of turbulence devices, and particularly relates to a turbulence structure for a heat exchange tube, a heat exchanger and a gas water heater. Background The gas water heater is also called as gas water heater, which uses gas as fuel to transfer heat to cold water flowing through heat exchanger by combustion heating mode to achieve the purpose of preparing hot water. In the use process of the gas water heater, when water flows through the heat exchange tube, the inner wall of the heat exchange tube is in direct contact with the water and transfers heat. In the process, hardness ions (such as calcium ions, magnesium ions and the like) in the water are easy to chemically react under the condition of temperature rise, so that scale is formed to adhere to the bottom of the inner wall of the heat exchange tube. The heat of the high-temperature flue gas at the outer side cannot be timely transferred to water at the scale attachment part, so that the heat exchange tube is locally high-temperature and overheated. The prior Chinese patent with publication number CN109059294A discloses a spoiler for a gas water heater, the gas water heater comprises a straight pipe with water to be heated flowing in the interior, the spoiler is arranged in the straight pipe, the spoiler comprises a bottom plate and spoiler structures protruding towards two sides of the bottom plate, and a spiral waterway is formed between the spoiler structures and the inner wall of the straight pipe. The vortex sheet and the inner wall of the straight pipe form a spiral waterway, so that the heat exchange efficiency can be high, scale formation can be prevented, but the structure of the vortex sheet is complex, and the production cost is high. In view of this, how to design a turbulent flow device which can improve the heat exchange efficiency of water and high temperature flue gas in the heat exchange tube, reduce the generation of scale, has a simple structure, and is convenient for production and cost reduction is the technical problem to be solved by the utility model. Disclosure of utility model The utility model provides a turbulent flow structure for a heat exchange tube, a heat exchanger and a gas water heater, which are used for realizing the turbulent flow device which improves the heat exchange efficiency of water and high-temperature smoke in the heat exchange tube, reduces the generation of scale and can reduce the production cost. In order to achieve the technical purpose, the utility model is realized by adopting the following technical scheme: In a first aspect, the present utility model provides a turbulent flow structure for a heat exchange tube, comprising: A main body part, which is provided with a plurality of turbulence holes at intervals along the length direction, and two ends of the main body part are respectively a water inlet end and a water outlet end; The spoiler is connected with the main body part, corresponds to the spoiler hole, and is positioned at the corresponding connecting position of the spoiler and the main body part and is close to the water inlet end side; Two adjacent spoilers, one of them along the rivers direction towards deviating from the first surface direction of main part extends, another one along the rivers direction towards deviating from the second surface direction of main part extends, first surface with the second surface is arranged dorsad. In some embodiments of the present application, the spoiler is a flange formed by punching the main body portion at the spoiler hole, or the spoiler is connected to the main body portion by welding. The spoiler is arranged as the flanging formed by punching the main body part at the spoiler hole, so that the processing flow is simplified, the processing time and the cost are reduced, and the spoiler is connected with the main body part in a welding mode, so that the spoiler has high connection strength and is not easy to deform. In some embodiments of the application, the respective connecting points of the spoiler and the main body portion are arranged in parallel in a straight line. Through the homogeneous parallel arrangement of straight line that each junction place with spoiler and main part is located, the regularity of spoiler is high like this, and the processing of being convenient for can increase the mobility of main part both sides rivers simultaneously, improves the heat transfer effect. In some embodiments of the application, turbulence holes are also formed in the body portion, the turbulence holes being disposed with the turbulence Kong Jiaoti. By arranging the turbulence holes on the main body part, the turbulence holes are arranged with the turbulence Kong Jiaoti, so that on one hand, the turbulence effect of water flow can be improved, the water flow exchange degree on two sides of the main b