Dividing wall heat exchange deaerator

Abstract

The utility model discloses a dividing wall heat exchange deaerator which comprises a cylinder body, a plurality of U-shaped pipes are arranged in the cylinder body, a cylinder with the right end closed is arranged at the right end of the cylinder body, a vertical partition plate and a horizontal partition plate are arranged in the cylinder, and the horizontal partition plate divides the space on the front side of the vertical partition plate into a heat source inlet cavity and a heat source outlet cavity. The inlet end of the U-shaped pipe is communicated with the heat source inlet cavity, and the outlet end of the U-shaped pipe is communicated with the heat source outlet cavity. A heat source enters the cylinder through the U-shaped tube bundle structure to be subjected to sufficient dividing wall heat exchange with water, non-condensable gas is separated out when the water reaches the saturation temperature, saturated water flows out of the deoxygenated water outlet in the bottom and enters lower-stage equipment, and the non-condensable gas is discharged through the non-condensable gas outlet in the top. And the heat source flows out from the cylindrical short section of the tube bundle for recovery after heat exchange. The dividing wall heat exchange deaerator can enable a heat source to enter and exit independently, the selectivity of the heat source is more, the energy utilization rate is higher, and the safety is higher.

Description

Technical Field

[0001] This utility model relates to the field of deaerators, specifically a partition wall heat exchange deaerator. Background Technology

[0002] Deaerators are key equipment in boilers and heating systems, mainly used to remove dissolved oxygen from boiler feedwater to prevent metal oxidation and corrosion and reduce heat transfer efficiency.

[0003] Traditionally, deaerators use steam as a heat source. The steam mixes with the deaerated water and heats it until the water reaches saturation temperature, releasing oxygen and other non-condensable gases. However, in modern engineering, especially in nuclear power plants, the steam medium contains radioactive elements or other harmful substances. Mixing and heating these substances poses a risk of leakage. These harmful substances can then enter downstream equipment with the deaerated water, damaging the entire operating system. Utility Model Content

[0004] The purpose of this invention is to solve the above problems and provide a partition heat exchange deaerator that allows heat source to exchange heat with deaerated water through a partition wall. The heat source can independently recover the released heat to ensure safety. The heat source medium is no longer limited to steam, but can be various fluid media that can release heat, making the deaerator more diversified, improving energy utilization, and developing a circular economy.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A partition wall heat exchange deaerator includes a cylindrical body with a plurality of U-shaped tubes inside. A closed cylindrical section is located at the right end of the cylindrical body. A vertical partition and a horizontal partition are provided inside the cylindrical section. The horizontal partition divides the space in front of the vertical partition into a heat source inlet chamber and a heat source outlet chamber. The inlet end of the U-shaped tube is connected to the heat source inlet chamber, and the outlet end of the U-shaped tube is connected to the heat source outlet chamber.

[0007] Furthermore, a pipe is provided at the right end of the cylinder, and a pad is provided between the pipe and the cylinder, with the right end of the U-shaped pipe connected to the pad.

[0008] Furthermore, the upper end of the cylinder is provided with a heat medium inlet communicating with the heat source inlet cavity, and the lower end of the cylinder is provided with a heat medium outlet communicating with the heat source outlet cavity.

[0009] Furthermore, the upper end of the cylinder is provided with a deoxygenated water inlet, and the lower end of the cylinder is provided with a deoxygenated water outlet.

[0010] Furthermore, a nozzle is provided at the outlet of the deoxygenated water inlet.

[0011] Furthermore, the upper end of the cylinder is provided with a first gas outlet and a second gas outlet.

[0012] Furthermore, a baffle is provided inside the second gas outlet, and the baffle is provided with a through hole.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model includes several U-shaped tubes inside a cylindrical body. A closed cylinder is located at the right end of the cylindrical body. The cylinder contains vertical and horizontal partitions. The horizontal partition divides the space in front of the vertical partition into a heat source inlet and a heat source outlet. The inlet end of each U-shaped tube communicates with the heat source inlet, and the outlet end communicates with the heat source outlet. The heat source enters the cylindrical body through the U-shaped tube bundle structure and undergoes thorough heat exchange with water. When the water reaches saturation temperature, non-condensable gases are released. The saturated water flows out from the bottom deoxygenated water outlet into the next stage of equipment, while the non-condensable gases are discharged through the top non-condensable gas outlet. After heat exchange, the heat source flows out from the short section of the cylindrical tube bundle for recovery. This indirect heat exchange deaerator allows for independent entry and exit of the heat source, providing greater heat source selectivity, higher energy utilization, and enhanced safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a sectional view of the cylindrical part of this utility model;

[0018] Figure 3 This is a cross-sectional view of the second gas outlet of this utility model.

[0019] In the diagram: 1. Cylinder body; 2. U-shaped pipe; 3. Cylindrical tube; 4. Vertical partition; 5. Horizontal partition; 6. Heat source inlet cavity; 7. Heat source outlet cavity; 8. Pipe; 9. Gasket; 10. Heat medium inlet; 11. Heat medium outlet; 12. Deoxygenated water inlet; 13. Deoxygenated water outlet; 14. Nozzle; 15. First gas outlet; 16. Second gas outlet; 17. Baffle; 18. Through hole. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0021] like Figure 1 and Figure 2 As shown, a partition wall heat exchange deaerator includes a cylindrical body 1. The cylindrical body 1 contains a plurality of U-shaped tubes 2 arranged on the same plane. A closed cylindrical section 3 is located at the right end of the cylindrical body 1. The cylindrical section 3 contains a vertical baffle 4 and a horizontal baffle 5. The horizontal baffle 5 divides the space in front of the vertical baffle 4 into a heat source inlet chamber 6 and a heat source outlet chamber 7. The inlet end of each U-shaped tube 2 communicates with the heat source inlet chamber 6, and the outlet end of each U-shaped tube 2 communicates with the heat source outlet chamber 7. The heat source enters the cylindrical body through the U-shaped tube bundle structure and undergoes thorough partition wall heat exchange with water. When the water reaches saturation temperature, non-condensable gases are released. The saturated water flows out from the bottom deaerated water outlet into the next stage of equipment, while the non-condensable gases are discharged through the top non-condensable gas outlet. After heat exchange, the heat source flows out from the short section of the cylindrical section of the tube bundle for recovery. The partition wall heat exchange deaerator allows for independent entry and exit of the heat source, providing greater heat source selectivity, higher energy utilization, and enhanced safety.

[0022] like Figure 1 As shown, the right end of the cylinder 1 is provided with a pipe 8, and a pad 9 is provided between the pipe 8 and the cylinder 3. The right end of the U-shaped tube 2 is connected to the pad 9. The pad 9 is provided with through holes corresponding to the ends of the U-shaped tube 2. The heat medium enters the U-shaped tube 2 through the through holes. A connecting plate is provided at the connection position between the pipe 8 and the cylinder 3, and they are connected by bolts. The pad 9 can be fixed by tightening the bolts.

[0023] like Figure 1 As shown, the upper end of the cylinder 3 is provided with a heat medium inlet 10 that communicates with the heat source inlet cavity 6, and the lower end of the cylinder 3 is provided with a heat medium outlet 11 that communicates with the heat source outlet cavity 7.

[0024] like Figure 1 As shown, the upper end of the cylinder 1 is provided with a deoxygenated water inlet 12, and the lower end of the cylinder 1 is provided with a deoxygenated water outlet 13.

[0025] like Figure 1 As shown, the deoxygenated water inlet 12 is provided with a nozzle 14. The deoxygenated water enters the nozzle from the top of the cylinder and is sprayed into the cylinder through the nozzle in a 360° manner.

[0026] like Figure 1 As shown, the upper end of the cylinder 1 is provided with a first gas outlet 15 and a second gas outlet 16. Before starting the deaerator, ensure that the entire condensate system is filled with water and that there is no residual air in the nozzles and connected pipes. Water intake should be carried out carefully to prevent water hammer from damaging the nozzles. Before starting the equipment, the entire system must be filled with water, and venting should be performed through the first gas outlet 15 and the second gas outlet 16. After venting, the first gas outlet 15 is closed, and the second gas outlet 16 remains open to discharge the released oxygen and other non-condensable gases.

[0027] like Figure 3 As shown, a baffle 17 is provided inside the second gas outlet 16, and a through hole 18 is provided on the baffle. Because this outlet is normally open, if the orifice diameter is too large, the steam will escape. In order to avoid waste of resources, a baffle 17 is provided inside the second gas outlet 16, and a through hole 18 is provided on the baffle 17 to throttle the flow and effectively discharge non-condensable gases.

[0028] In the description of this utility model, it should be noted that the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A partition wall heat exchange deaerator, comprising a cylindrical body (1), characterized in that, The cylinder (1) is provided with several U-shaped tubes (2). The right end of the cylinder (1) is provided with a closed cylinder (3). The cylinder (3) is provided with a vertical partition (4) and a horizontal partition (5). The horizontal partition (5) divides the space in front of the vertical partition (4) into a heat source inlet cavity (6) and a heat source outlet cavity (7). The inlet end of the U-shaped tube (2) is connected to the heat source inlet cavity (6), and the outlet end of the U-shaped tube (2) is connected to the heat source outlet cavity (7).

2. The partition wall heat exchanger deaerator as described in claim 1, characterized in that, The right end of the cylinder (1) is provided with a pipe (8), and a pad (9) is provided between the pipe (8) and the cylinder (3). The right end of the U-shaped pipe (2) is connected to the pad (9).

3. The partition wall heat exchanger deaerator as described in claim 1, characterized in that, The upper end of the cylinder (3) is provided with a heat medium inlet (10) that communicates with the heat source inlet cavity (6), and the lower end of the cylinder (3) is provided with a heat medium outlet (11) that communicates with the heat source outlet cavity (7).

4. The partition wall heat exchanger deaerator as described in claim 1, characterized in that, The upper end of the cylinder (1) is provided with a deoxygenated water inlet (12), and the lower end of the cylinder (1) is provided with a deoxygenated water outlet (13).

5. A partition wall heat exchange deaerator as described in claim 4, characterized in that, The deoxygenated water inlet (12) is equipped with a nozzle (14).

6. The partition wall heat exchanger deaerator as described in claim 1, characterized in that, The upper end of the cylinder (1) is provided with a first gas outlet (15) and a second gas outlet (16).

7. A partition wall heat exchange deaerator as described in claim 6, characterized in that, The second gas outlet (16) is provided with a baffle (17), and the baffle is provided with a through hole (18).

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