Condenser capable of preventing accumulated water from leaking

Abstract

The utility model discloses a condenser capable of preventing accumulated water from leaking. The condenser capable of preventing accumulated water leakage comprises a pipe body, the pipe body comprises an upper bottom plate, side plates are welded to the two sides of the upper bottom plate, a lower bottom plate is arranged at the bottoms of the two side plates, the two sides of the lower bottom plate are bent to form first turnups facing the upper bottom plate, the first turnups wrap the outer walls of the side plates, and the top edges of the first turnups are welded to the outer walls of the side plates. The utility model solves the problem that the product quality is affected due to easy water leakage in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of steam generating equipment technology, and in particular to a condenser that prevents water leakage. Background Technology

[0002] To improve energy efficiency and reduce thermal pollution to the environment, most modern cross-flow steam generators are equipped with condensers. The high-temperature flue gas after combustion enters the condenser before being discharged, transferring its waste heat to the cold water entering the generator to preheat the water.

[0003] Currently, the outer shell of condensers is generally made by welding, such as Figure 1-2 As shown, a rectangular channel for flue gas passage is formed by welding together a top plate a, a bottom plate b, and two side plates c. Because the weld d between the bottom plate and the two side plates is relatively long, the welding quality is difficult to guarantee. Water accumulated after heat exchange by the high-temperature flue gas is prone to leaking at the weld, affecting product quality. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a condenser that can improve product quality and prevent water leakage.

[0005] To achieve the above objectives, the technical solution adopted by the condenser of this utility model for preventing water accumulation and leakage is as follows:

[0006] A condenser for preventing water leakage includes a tube body, which includes an upper base plate. Side plates are welded to both sides of the upper base plate, and a lower base plate is provided at the bottom of the two side plates. The lower base plate has a first flange bent on both sides facing the upper base plate. The first flange covers the outer wall of the side plate, and the top edge of the first flange is welded to the outer wall of the side plate.

[0007] Preferably, the lower base plate has a second flange bent on both sides along the axial direction of the pipe body, the upper base plate has a third flange bent on both sides along the axial direction of the pipe body, and the side plate has a fourth flange bent on both sides along the axial direction of the pipe body. The second, third, and fourth flanges on the same side are welded together to form a flange.

[0008] Preferably, the upper base plate has a fifth flange on both sides facing the lower base plate, the fifth flange covers the outer wall of the side plate, and the bottom edge of the fifth flange is welded to the outer wall of the side plate.

[0009] Preferably, the height of the first, second, third, fourth, and fifth flanges is 10-40mm.

[0010] Preferably, it also includes a serpentine condenser tube installed in the inner cavity of the tube body, with one end of the serpentine condenser tube extending out of the tube body and connected to a water inlet pipe seat, and the other end extending out of the tube body and connected to a water outlet pipe seat.

[0011] Preferably, the outer circumferential surface of the straight section of the serpentine condenser tube is wrapped with a fin assembly.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] The bottom plate is bent to form the first flange, which covers the side wall of the side plate. Even if the welding quality between the first flange and the side plate is not good, the concave structure of the bottom plate can be used to prevent water leakage, thereby improving product quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the existing condenser casing.

[0015] Figure 2 yes Figure 1 Enlarged view of point E.

[0016] Figure 3 This is a schematic diagram of the structure of the condenser for preventing water leakage according to this utility model.

[0017] Figure 4 This is an exploded view of the tube body of this utility model.

[0018] Among them, a is the top plate, b is the bottom plate, c is the side plate, d is the weld, 1 is the pipe body, 11 is the upper bottom plate, 111 is the third flange, 112 is the fifth flange, 12 is the side plate, 121 is the fourth flange, 13 is the lower bottom plate, 131 is the first flange, 132 is the second flange, 2 is the serpentine condenser tube, 21 is the fin assembly, 3 is the water inlet pipe seat, and 4 is the water outlet pipe seat. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0020] like Figure 3-4As shown, a condenser for preventing water leakage includes a tube body 1. A serpentine condenser tube 2 is installed inside the tube body to cool high-temperature flue gas from the furnace and preheat cold water entering the generator. The outer periphery of the straight section of the serpentine condenser tube is wrapped with a fin assembly 21, which increases the contact area with the high-temperature flue gas and improves the heat exchange efficiency. One end of the serpentine condenser tube extends out of the tube body and connects to the inlet pipe seat 3, and the other end extends out of the tube body and connects to the outlet pipe seat 4. The tube body includes an upper base plate 11, with side plates 12 welded to the left and right sides of the upper base plate. A lower base plate 13 is provided at the bottom of the two side plates. The two sides of the lower base plate are bent towards the upper base plate with a first flange 131. The first flange covers the outer wall of the side plate, and the top edge of the first flange is welded to the outer wall of the side plate. The lower base plate extends along the tube body. The upper base plate has a second flange 132 bent on both sides along the axial direction of the pipe body, a third flange 111 bent on both sides along the axial direction of the pipe body, and a fourth flange 121 bent on both sides along the axial direction of the pipe body. The second, third, and fourth flanges on the same side are welded together to form a flange. The flange is formed directly by flanging the plate. Compared with the current method of welding strip profiles at both ends of the pipe body, this reduces the amount of welding work and improves production efficiency. The upper base plate has a fifth flange 112 bent on both sides towards the lower base plate. The fifth flange covers the outer wall of the side plate. The bottom edge of the fifth flange is welded to the outer wall of the side plate. During welding, the fifth flange is directly clamped on the outside of the side plate to quickly position the upper base plate, which is convenient for construction. The height of the first, second, third, fourth, and fifth flanges is 25mm.

[0021] The specific working process and principle of this utility model are as follows: Cold water enters the condenser tube from one side of the inlet pipe seat, and exchanges heat with the high-temperature flue gas from the furnace in the inner cavity of the tube. The water vapor in the high-temperature flue gas turns into liquid upon cooling, and water droplets accumulate on the lower base plate and are discharged through the pipe. Because the left and right sides of the lower base plate are bent into first flanges, and the top edge of the first flange is welded to the outer wall of the side plate, the weld between the lower base plate and the side plate is raised to a certain height. Even if the weld quality is poor, the water accumulated on the lower base plate will not leak from this weld. Furthermore, the weld lengths at the front and rear ends of the first flange and the left and right ends of the second flange are relatively short, and the welding quality is easy to control, which can effectively reduce the risk of leakage at these two points, thereby ensuring product quality.

Claims

1. A condenser for preventing water leakage, comprising a tube body, the tube body including an upper base plate, side plates welded to both sides of the upper base plate, and a lower base plate disposed at the bottom of the two side plates, characterized in that: The lower base plate has two sides bent with a first flange facing the upper base plate. The first flange covers the outer wall of the side plate, and the top edge of the first flange is welded to the outer wall of the side plate.

2. The condenser for preventing water leakage according to claim 1, characterized in that: The lower base plate has a second flange bent on both sides along the axial direction of the pipe body, the upper base plate has a third flange bent on both sides along the axial direction of the pipe body, and the side plate has a fourth flange bent on both sides along the axial direction of the pipe body. The second, third, and fourth flanges on the same side are welded together to form a flange.

3. The condenser for preventing water leakage according to claim 2, characterized in that: The upper base plate has a fifth flange on both sides that faces the lower base plate. The fifth flange covers the outer wall of the side plate, and the bottom edge of the fifth flange is welded to the outer wall of the side plate.

4. The condenser for preventing water leakage according to claim 3, characterized in that: The height of the first, second, third, fourth, and fifth flanges is 10-40mm.

5. The condenser for preventing water leakage according to claim 1, characterized in that: It also includes a serpentine condenser tube installed inside the tube body, with one end of the serpentine condenser tube extending out of the tube body and connected to an inlet pipe seat, and the other end extending out of the tube body and connected to an outlet pipe seat.

6. The condenser for preventing water leakage according to claim 5, characterized in that: The outer circumference of the serpentine condenser is covered with fins.

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