Collector pipe serial sheet type protective gas cooler
By using a U-tube welded to a water collecting pipe in the shielding gas cooler, the water leakage and clogging problems of the traditional cooler are solved, achieving stable operation of the equipment and space saving.
Patent Information
- Application Number
- CN202422908352.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Traditional shielding gas coolers are prone to blockage of heat exchange tubes due to scaling inside the water chamber, and cracking of welds may cause water leakage in the furnace, affecting equipment stability.
U-shaped tubes are used as heat exchange tubes and are welded to the water collecting pipes on the outside of the shell. The two ends of the water collecting pipes are blocked, and the fins are integrally expanded to the heat exchange tubes. All welds are located outside the furnace. The water collecting pipes are away from the heat source to prevent scaling, and the fins increase the heat exchange area per unit volume.
It effectively prevents water leakage in the furnace and blockage of heat exchange tubes, improves the stability of the equipment and space utilization efficiency, and reduces the occurrence of scaling.
Smart Images
Figure CN223435485U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of protective gas cooler, concretely is a kind of water collecting pipe string piece type protective gas cooler. BACKGROUND
[0002] Protective gas (N2+H2) cooler is the strip steel cooling equipment of strip steel galvanizing line and continuous annealing furnace in cold rolling mill, the two kinds of furnace are filled with low dew point, low oxygen content protective gas, and the strip steel completes its process under reducing protective atmosphere, and the cooler is the key equipment of strip steel cooling process, and its structure form generally adopts finned tube heat exchanger, and the key point of the equipment is to ensure the stability of long-term operation, and water leakage must be absolutely avoided.
[0003] Traditional cooler is prone to scale formation inside water chamber and heat exchange tube blockage, and once the high-temperature weld opening cracks, water leakage into the furnace will cause the dew point of protective gas to rise. UTILITY MODEL CONTENTS
[0004] In view of the above-mentioned deficiencies of the prior art, the utility model provides a kind of water collecting pipe string piece type protective gas cooler, heat exchange tube is U-shaped tube and is bent into whole tube, heat exchange tube is welded with water collecting pipe and is drawn out from shell assembly, all welds are outside furnace, to prevent the occurrence of water leakage in furnace caused by weld opening, water collecting pipe is circular tube structure and both ends are blocked, water collecting pipe is away from heat source in furnace to prevent scale formation in water collecting pipe, thereby preventing heat exchange tube blockage.
[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of water collecting pipe string piece type protective gas cooler, comprising: multiple groups of heat exchange tubes, the heat exchange tube is U-shaped tube and is bent into whole tube;Shell assembly, multiple groups of the heat exchange tube are arranged in the shell assembly;Multiple groups of fins, each group of the fin is integral fin and is expanded with multiple groups of heat exchange tubes;Water collecting assembly, the water collecting assembly includes a pair of water collecting pipes, a pair of flanges and at least one group of connecting elbows, the connecting elbow is used to connect multiple groups of heat exchange tubes, a pair of the water collecting pipe is connected with the outside two rows of heat exchange tubes, a pair of the flange is arranged on water collecting pipe, the water collecting pipe is arranged outside shell assembly and is the circular tube structure of both ends end cover.
[0006] Preferably, the shell assembly includes a closed guard plate, a lower tube plate, a pair of side plates, a mounting tube plate and an upper wind shield, the lower tube plate is concave, multiple groups of the heat exchange tube are penetrated into the lower tube plate and the mounting tube plate, the upper wind shield is connected with the mounting tube plate, and a pair of the side plates are connected with both sides of the closed guard plate, the lower tube plate, the mounting tube plate and the upper wind shield.
[0007] Preferably, a support plate is arranged between a pair of the side plates, and multiple groups of the heat exchange tube are penetrated into the support plate, and the support plate is arranged between multiple groups of the fin.
[0008] Preferably, the water collecting pipe is provided with air release valves at both ends.
[0009] Preferably, the heat exchange pipe is made of red copper, nickel copper or stainless steel.
[0010] Preferably, the fin is made of aluminum or red copper.
[0011] The utility model provides a water collecting pipe string piece formula protective gas cooler has the following beneficial effects:
[0012] 1. The utility model heat exchange pipe is U type pipe and is whole pipe bending, heat exchange pipe passes out shell component and is welded with water collecting pipe, all welds are in the furnace outside, further prevents the occurrence of the furnace leakage phenomenon caused by weld opening, and the water collecting pipe is the round pipe structure and is blocked at both ends, the water collecting pipe is far from the heat source in the furnace and prevents the scale formation in the water collecting pipe, thereby preventing the heat exchange pipe from being blocked.
[0013] 2. The utility model fin adopts whole fin, and the fin is integrally expanded with the heat exchange pipe, the heat exchange area in unit volume is relatively large, the heat exchanger with same heat exchange capacity can be relatively small, and space is saved more, and the water collecting pipe is provided with air release valves at both ends, and the air in the water collecting pipe can be released by opening the air release valves. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the explosion drawing of the utility model.
[0015] In the drawing: 1, closed guard plate; 2, heat exchange pipe; 3, lower tube plate; 4, support plate; 5, side plate; 6, fin; 7, mounting tube plate; 8, upper wind shield; 9, water collecting pipe; 10, flange; 11, air release valve; 12, connecting elbow. DETAILED DESCRIPTION
[0016] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0017] As Figure 1As shown, a water collecting pipe string piece type protective gas cooler comprises: multiple groups of heat exchange pipes 2, which are U-shaped pipes and are formed by bending an integral pipe; a shell assembly, the multiple groups of heat exchange pipes 2 are arranged in the shell assembly; multiple groups of fins 6, each group of the fins 6 is an integral fin and is expandedly connected with the multiple groups of heat exchange pipes 2; a water collecting assembly, the water collecting assembly comprises a pair of water collecting pipes 9, a pair of flanges 10 and at least one group of connecting elbows 12, the connecting elbows 12 are used for connecting the multiple groups of heat exchange pipes 2, the pair of water collecting pipes 9 are connected with the two rows of heat exchange pipes 2 on the outside, the pair of flanges 10 are arranged on the water collecting pipes 9, the water collecting pipes 9 are arranged on the outside of the shell assembly and are in the structure of circular pipes with both ends sealed; the shell assembly comprises a closed guard plate 1, a lower tube plate 3, a pair of side plates 5, a mounting tube plate 7 and an upper wind shielding plate 8, the lower tube plate 3 is in the shape of a concave letter, the multiple groups of heat exchange pipes 2 penetrate into the lower tube plate 3 and the mounting tube plate 7, the upper wind shielding plate 8 is connected with the mounting tube plate 7, the pair of side plates 5 are connected with both sides of the closed guard plate 1, the lower tube plate 3, the mounting tube plate 7 and the upper wind shielding plate 8, and a support plate 4 is arranged between the pair of side plates 5, the multiple groups of heat exchange pipes 2 penetrate into the support plate 4, and the support plate 4 is arranged between the multiple groups of fins 6; the water collecting pipes 9 are provided with air release valves 11 at both ends; the heat exchange pipes 2 are made of red copper, nickel copper or stainless steel; and the fins 6 are made of aluminum or red copper.
[0018] The detailed connecting means is a known technology in the field, and the working principle and process are mainly introduced as follows:
[0019] According to the description attached Figure 1 It can be known that, in use, the multiple groups of heat exchange pipes 2 and the fins 6 are located in the furnace, the water collecting assembly is located outside the furnace, the flanges 10 on the water collecting pipes 9 are connected with external pipelines, the heat exchange pipes 2 are U-shaped pipes and are formed by bending an integral pipe, so that no welding points are ensured in the furnace, the heat exchange pipes 2 penetrate out of the shell assembly and are welded with the water collecting pipes 9, all the welding openings are outside the furnace, so that the phenomenon of water leakage in the furnace caused by welding opening is avoided, the water collecting pipes 9 are in the structure of circular pipes and are sealed at both ends, the water collecting pipes 9 are far away from the heat source in the furnace, so that the phenomenon of scale formation in the water collecting pipes 9 is prevented, the fins 6 are integral fins, the fins 6 are integrally expandedly connected with the heat exchange pipes 2, the heat exchange area in a unit volume is relatively large, and the heat exchanger with the same heat exchange capacity can be relatively small, so that space is saved.
[0020] There is a possible implementation that the closed guard plate 1, the lower tube plate 3, the pair of side plates 5, the mounting tube plate 7 and the upper wind shielding plate 8 form the shell assembly, and the multiple groups of heat exchange pipes 2 are mounted in the shell assembly.
[0021] There is a possible implementation that the multiple groups of heat exchange pipes 2 penetrate into the support plate 4, and the support plate 4 is arranged between the pair of side plates 5, and the support plate 4 is used for supporting the multiple groups of heat exchange pipes 2.
[0022] There is a kind of implementation possibility, the both ends of water collecting pipe 9 are provided with air release valve 11, and opening air release valve 11 can release the air in water collecting pipe 9.
[0023] There is a kind of implementation possibility, the material of heat exchange pipe 2 is red copper, nickel copper or stainless steel, the material of fin 6 is aluminum or red copper, and the corresponding material is selected according to actual conditions.
[0024] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A water collecting pipe series plate type protective gas cooler, characterized in that: include: Multiple groups of heat exchange tubes (2), wherein the heat exchange tubes (2) are U-shaped tubes and are formed by bending a whole tube; A shell assembly, wherein a plurality of groups of heat exchange tubes (2) are arranged in the shell assembly; Multiple groups of fins (6), each group of fins (6) is an integral fin and is expansion-connected to multiple groups of heat exchange tubes (2); A water collection assembly, comprising a pair of water collection pipes (9), a pair of flanges (10) and at least one set of connecting elbows (12), wherein the connecting elbows (12) are used to connect multiple groups of heat exchange tubes (2), a pair of the water collection pipes (9) are connected to two outer rows of heat exchange tubes (2), a pair of the flanges (10) are arranged on the water collection pipes (9), and the water collection pipes (9) are arranged outside the shell assembly and are a circular tube structure with caps at both ends.
2. The water collecting pipe series plate type protective gas cooler according to claim 1, characterized in that: The shell assembly includes a closed protective plate (1), a lower tube plate (3), a pair of side plates (5), a mounting tube plate (7) and an upper wind shield (8); the lower tube plate (3) is concave in shape; multiple groups of heat exchange tubes (2) pass through the lower tube plate (3) and the mounting tube plate (7); the upper wind shield (8) is connected to the mounting tube plate (7); and a pair of side plates (5) are connected to both sides of the closed protective plate (1), the lower tube plate (3), the mounting tube plate (7) and the upper wind shield (8).
3. The water collecting pipe series plate type protective gas cooler according to claim 2, characterized in that: A support plate (4) is provided between a pair of the side plates (5), and a plurality of groups of the heat exchange tubes (2) pass through the support plate (4). The support plate (4) is provided between a plurality of groups of fins (6).
4. The water collecting pipe series plate type protective gas cooler according to claim 1, characterized in that: Both ends of the water collecting pipe (9) are provided with air release valves (11).
5. The water collecting pipe series plate type protective gas cooler according to claim 1, characterized in that: The heat exchange tube (2) is made of red copper, nickel copper or stainless steel.
6. The water collecting pipe series plate type protective gas cooler according to claim 1, characterized in that: The material of the fin (6) is aluminum or copper.