A circulating water path protection ring
By adopting a U-shaped arc base plate and an internal water channel design, the problems of easy cracking and poor heat dissipation of the protective ring under high temperature environment are solved, achieving higher temperature resistance, safety and excellent heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DECHENG SINCERE METALLURGICAL ELECTRIC EQUIP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-29
AI Technical Summary
The existing protective ring is prone to cracking under high temperature conditions, which can lead to water leakage in the weld, posing a safety hazard, and its heat dissipation effect is poor.
The design adopts an arc-shaped base plate with a U-shaped cross section to reduce welds. It has water channels that are connected end to end and water channels are set on the inner side wall of the arc-shaped base plate. An additional refractory castable layer is added to improve high-temperature resistance.
The high-temperature resistance of the protective ring was improved, the risk of weld cracking was reduced, safety was enhanced, and heat dissipation was improved.
Smart Images

Figure CN224302756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric furnaces, and in particular to a protective ring for circulating water circuits. Background Technology
[0002] Currently, electric furnaces both domestically and internationally are trending towards larger, more enclosed, environmentally friendly, energy-saving, and automated designs, placing stricter requirements on the reliability and safety of the equipment.
[0003] The protective ring is installed at the bottom of the furnace cover and is in direct contact with the high-temperature environment and gas inside the furnace, typically reaching 500℃-1250℃, and can reach over 1500℃ during material spraying. Therefore, the protective ring is required to have high temperature resistance, a reasonable, simple, and reliable structure, and a long service life.
[0004] The protective ring is usually installed inside the furnace. Existing protective rings have many welds in the high-temperature zone at the bottom. These welds are located in the high-temperature zone inside the furnace and are affected by high temperatures or splashing of furnace charge, causing the protective ring to reach high temperatures instantaneously. The circulating water vaporizes at high temperatures, which can easily cause the welds to crack, resulting in water leakage and potentially causing safety accidents. Utility Model Content
[0005] The purpose of this invention is to provide a protective ring for circulating water circuits.
[0006] The innovation of this utility model lies in the fact that the U-shaped arc-shaped bottom plate reduces the number of welds at the bottom, making it less prone to cracking and safer.
[0007] To achieve the aforementioned objectives, the technical solution of this utility model is as follows:
[0008] A circulating water circuit protection ring includes a protection ring body, which is composed of an arc-shaped base plate with a U-shaped cross section and a panel that seals the upper part of the arc-shaped base plate. The panel is provided with an inlet and an outlet.
[0009] Furthermore, the protective ring body is divided into several interconnected water channels by a water-blocking plate. This reduces the current situation where the water channels in the protective ring are wide and the heat dissipation effect is generally poor. The interconnected water channels within the protective ring reduce the width of the water channels and improve the heat dissipation effect.
[0010] Furthermore, several water channels are provided around the inner wall of the curved base plate to ensure effective heat dissipation at the curved base plate.
[0011] Furthermore, the panel is provided with several lifting lugs for securely connecting the protective ring and other equipment.
[0012] Furthermore, a refractory castable layer is provided at the bottom of the protective ring body, and several anchoring nails for connecting the refractory castable layer are welded to the bottom of the protective ring body. This is to improve the service life of the protective ring in high-temperature environments.
[0013] The beneficial effects of this utility model are:
[0014] 1. In this utility model, the arc-shaped base plate with a U-shaped cross-section reduces the number of welds at the bottom, making it less prone to cracking and safer.
[0015] 2. By setting up water channels that are connected end to end, the width of the water channel is reduced, and dead zones can be avoided, resulting in better heat dissipation.
[0016] 3. In this utility model, setting several rings of water channels around the inner wall of the arc-shaped base plate can make the water channels as close as possible to the side wall of the arc-shaped base plate, resulting in better heat dissipation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention.
[0019] Figure 3 This is a cross-sectional view of the protective ring body. Detailed Implementation
[0020] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.
[0021] Example 1: As Figure 1 , 2 As shown in Figure 3, a circulating water circuit protection ring includes a protection ring body 1. The protection ring body 1 is composed of an arc-shaped base plate 1.1 with a U-shaped cross section and a panel 1.2 that seals the upper part of the arc-shaped base plate 1.1. The panel 1.2 is provided with an inlet 2 and an outlet 3, and a plurality of lifting lugs 6 are provided on the panel 1.2.
[0022] The protective ring body 1 is divided into several water channels 5 connected end to end by a water-proof plate 4, and several rings of water channels 5 are provided around the inner side wall of the arc-shaped bottom plate 1.
[0023] The bottom of the protective ring body 1 is provided with a refractory castable layer 7, and a number of anchoring nails 8 for connecting the refractory castable layer 7 are welded to the bottom of the protective ring body 1.
[0024] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A protective ring for a circulating water system, comprising a protective ring body, characterized in that, The protective ring body consists of an arc-shaped base plate with a U-shaped cross-section and a panel that seals the upper part of the arc-shaped base plate. The panel is provided with an inlet and an outlet.
2. The circulating water circuit protection ring according to claim 1, characterized in that, The protective ring body is divided into several interconnected water channels by a water-proof plate.
3. The circulating water circuit protection ring according to claim 2, characterized in that, Several water channels are provided around the inner side wall of the arc-shaped base plate.
4. The circulating water circuit protection ring according to claim 1, characterized in that, The panel is equipped with several hanging lugs.
5. The circulating water circuit protection ring according to claim 1, characterized in that, The bottom of the protective ring body is provided with a layer of refractory castable, and a number of anchoring nails for connecting the refractory castable layer are welded to the bottom of the protective ring body.