Flow restricting ring

Abstract

The invention discloses a flow restricting ring, which is simple in structure, good in flow restricting effect and can be adjustable. The flow restricting ring comprises a ring body (1), a flow restricting pillar (2), a ring-shaped bracket (3) sleeved in the ring body (1) and fixedly connected with the flow restricting pillar (2), and a flow restricting rubber ring (4) sleeved on the flow restricting pillar (2), wherein a flow restricting hole (5) is formed between the flow restricting pillar (2) and the ring-shaped bracket (3); an overflow groove (6) is formed at the circumference of the flow restricting pillar (4); an adjusting ring (7) is coaxially arranged above the ring-shaped bracket (3); a plurality of adjusting grooves (8) are formed at the circumference of the ring-shaped bracket (3); and adjusting bulges (9) matched with the adjusting grooves (8) are arranged at the circumference of the adjusting ring (7). The flow restricting ring can be applied to the technical field of wall-mounted furnaces, water heaters and other pipeline equipment.

Description

Technical field [0001] The present invention relates to a current-limiting ring, in particular to a current-limiting ring capable of fine-tuning and limiting flow. Background technique [0002] The restrictor ring is an important part of equipment such as valves, pipes, and water heaters. It is used to restrict the flow of fluid to obtain a predetermined flow rate, and protect the valve, pipe, water heater and other equipment, and can also stabilize the fluid The function of data, as far as wall-hung boilers and water heaters are concerned, flow-limiting rings are often used to limit the size of the flow, and the water flow is automatically adjusted according to changes in water pressure to achieve the purpose of constant temperature. At present, there is a Chinese patent with publication number 202852312U that discloses a restrictor ring, which includes a restrictor ring body. The center of the restrictor ring body is provided with an integrated thin-walled ring. The thin-walled...

AI Technical Summary

Problems solved by technology

At present, a Chinese patent with a publication number of 202852312U discloses a current limiting ring, which includes a current limiting ring body. The center of the current limiting ring body is provided with an integrated thin-walled ring. There is a flow hole between them, and the outer circumference of the thin-walled ring is sleeved with a current-limiting rubber ring. The current-limiting rubber ring is an important component in the current-limiting ring and plays an important role in limiting the current. Made of rubber, the elastic deformation of rubber is easily affected by the temperature of the outside world, the temperature of the fluid, and the pressure of the fluid. When used in winter, the flow limit may reach 12L±10%, and vice versa, the error may be ±20%, and the error may reach ±30% in severe cases. In some places with high flow limit requirements, due to this The error of the current limiting ring is large, so the current limiting ring often fails to meet the requirements, so it is necessary to improve the existing defects

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