High-temperature waste heat recovery heat exchange tank

Abstract

The utility model discloses a high-temperature waste heat recovery heat exchange tank, and particularly relates to the technical field of high-temperature waste heat recovery, which comprises an upper cover plate, and high-temperature waste heat recovery heat exchange auxiliary devices are arranged at the upper end and the lower end of the upper cover plate; the high-temperature waste heat recovery and heat exchange auxiliary device comprises a waste heat recovery assembly and a drainage assembly, and the drainage assembly is arranged at the lower end of the waste heat recovery assembly. Compared with the prior art, the high-temperature waste heat recovery heat exchange tank has the advantages that the buoyancy plate is driven to move up and down through the rising and falling of the water collection water level, so that the sealing and blocking ball body is moved to be opened and closed, and the problem that gas in the waste heat recovery treatment tank body is excessively discharged after excessive discharge of the drainage pipeline is effectively solved; according to the waste heat recovery treatment device, waste heat on the side edge of the waste heat recovery treatment tank body can be collected and utilized through the arrangement of the external temperature collection spiral pipeline, the waste heat utilization efficiency of the whole device is greatly improved, and the collection efficiency of the whole device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature waste heat recovery, and more specifically, the utility model relates to a high-temperature waste heat recovery heat exchange tank. Background Technique

[0002] In a thermal power plant, a large amount of steam is obtained by heating with a coal furnace. Part of the steam is introduced into a steam turbine and the thermal energy is converted into mechanical energy by the steam turbine for power generation. Part of the steam is transported through a pipeline for heating, and the remaining part of the steam cannot be fully utilized due to defects in equipment and technology.

[0003] Currently, this part of the steam is collected and introduced into a heat exchange tank to preheat the transportation coil of the water supply. The steam used for preheating will condense into liquid water due to heat dissipation and deposit at the bottom of the heat exchange tank. A drain pipe is connected to the bottom of the heat exchange tank. Under the high pressure in the heat exchange tank, the deposited liquid water is discharged from the drain pipe and reused.

[0004] However, when the flow rate of the steam flowing into the heat exchange tank increases, the air pressure in the heat exchange tank will increase, causing the liquid water at the bottom of the tank body to flow out quickly under the high pressure, and the liquid level of the deposited liquid water will drop rapidly. When the liquid level of the liquid water drops below the drain pipe, the steam will be directly discharged from the drain pipe, resulting in the steam being discharged from the drain pipe without heat exchange, which affects the heat exchange effect of the heat exchange tank. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a high-temperature waste heat recovery heat exchange tank to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A high-temperature waste heat recovery heat exchange tank, including an upper cover plate, and high-temperature waste heat recovery heat exchange auxiliary devices are arranged at both the upper and lower ends of the upper cover plate; the high-temperature waste heat recovery heat exchange auxiliary devices include: a waste heat recovery component and a drainage component, and the drainage component is arranged at the lower end of the waste heat recovery component.

[0007] In a preferred embodiment, the waste heat recovery component includes: a waste heat recovery treatment tank body, an intake pipe, an exhaust pipe, an external temperature collection spiral pipe, and a side waste heat collection groove. The side waste heat collection groove is opened on the inner walls of the upper and lower ends of the waste heat recovery treatment tank body. The lower end of the intake pipe is installed on the upper end of the upper cover plate, the upper cover plate is installed on the upper end of the waste heat recovery treatment tank body, the external temperature collection spiral pipe is installed in the side waste heat collection groove, and one end of the exhaust pipe is installed on the side of the waste heat recovery treatment tank body.

[0008] In a preferred embodiment, the drainage assembly includes: a sealing and blocking sphere, a buoyancy plate, sliding holes, movable limit rods, limit gaskets, and a drainage pipe. A bottom cover is installed at the upper end of the drainage pipe, and the upper end of the bottom cover is installed at the lower end of the waste heat recovery treatment tank body. A pulling rope is installed at the upper end of the sealing and blocking sphere, and the upper end of the pulling rope is installed at the lower end of the buoyancy plate.

[0009] In a preferred embodiment, there are two sets of the sliding holes and the movable limit rods respectively. The two sets of sliding holes are respectively opened at the upper and lower ends on both sides of the buoyancy plate.

[0010] In a preferred embodiment, the lower end of the sealing and blocking sphere is movably installed inside the upper end of the drainage pipe. The upper end of the drainage pipe penetrates through the upper and lower ends of the bottom cover and the lower end of the waste heat recovery treatment tank body.

[0011] In a preferred embodiment, there are four sets of the limit gaskets, and the four sets of limit gaskets are respectively installed on the outer walls of the upper and lower ends of the two sets of movable limit rods.

[0012] In a preferred embodiment, the lower end of the movable limit rod is installed at the inner bottom end of the waste heat recovery treatment tank body. The two sets of movable limit rods have the same model and size. The buoyancy plate is movably installed on the outer walls of the two sets of movable limit rods. Switch control valves are provided at both ends of the intake pipe, the exhaust pipe, the external temperature collection spiral pipe, and the drainage pipe.

[0013] The technical effects and advantages of the present utility model:

[0014] A high-temperature waste heat recovery heat exchange tank. Compared with the prior art, the device drives the movement and opening / closing of the sealing and blocking sphere by the rise and fall of the water collection water level, effectively avoiding the problem that the internal gas of the waste heat recovery treatment tank body is discharged excessively along with the excessive discharge of the drainage pipe, further improving the discharge strictness of the entire device. The device can collect and utilize the remaining heat on the side of the waste heat recovery treatment tank body by setting the external temperature collection spiral pipe, greatly improving the remaining heat utilization efficiency of the entire device and effectively improving the collection efficiency of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 It is a schematic diagram of the structure of the high-temperature waste heat recovery heat exchange auxiliary device of the present utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the waste heat recovery assembly of the present utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the drainage assembly of the present utility model.

[0019] The reference numerals are: 1, upper cover plate; 2, high-temperature waste heat recovery heat exchange auxiliary device; 21, waste heat recovery component; 211, waste heat recovery treatment tank body; 212, side waste heat collection tank; 213, external temperature collection spiral pipe; 214, intake pipe; 215, exhaust pipe; 22, drainage component; 221, bottom cover; 222, drainage pipe; 223, sealing and blocking sphere; 224, pulling rope; 225, buoyancy plate; 226, sliding hole; 227, moving limit rod; 228, limit gasket. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] As shown in the Figures 1-4 accompanying drawings, the present invention provides a high-temperature waste heat recovery heat exchange tank, which includes an upper cover plate 1, and a high-temperature waste heat recovery heat exchange auxiliary device 2 is arranged at both the upper and lower ends of the upper cover plate 1; the high-temperature waste heat recovery heat exchange auxiliary device 2 includes: a waste heat recovery component 21 and a drainage component 22, and the drainage component 22 is arranged at the lower end of the waste heat recovery component 21.

[0022] The waste heat recovery component 21 includes: a waste heat recovery treatment tank body 211, an intake pipe 214, an exhaust pipe 215, an external temperature collection spiral pipe 213 and a side waste heat collection tank 212. The side waste heat collection tank 212 is opened on the inner walls of the upper and lower ends of the waste heat recovery treatment tank body 211. The lower end of the intake pipe 214 is installed on the upper end of the upper cover plate 1, and the upper end of the upper cover plate 1 is installed on the upper end of the waste heat recovery treatment tank body 211. The external temperature collection spiral pipe 213 is installed in the side waste heat collection tank 212, and one end of the exhaust pipe 215 is installed on the side of the waste heat recovery treatment tank body 211.

[0023] The drainage component 22 includes: a sealing and blocking sphere 223, a buoyancy plate 225, sliding holes 226, moving limit rods 227, limit gaskets 228, and a drainage pipe 222. A bottom cover 221 is installed at the upper end of the drainage pipe 222, and the upper end of the bottom cover 221 is installed at the lower end of the waste heat recovery and treatment tank body 211. A pulling rope 224 is installed at the upper end of the sealing and blocking sphere 223, and the upper end of the pulling rope 224 is installed at the lower end of the buoyancy plate 225. There are two groups of sliding holes 226 and moving limit rods 227. The two groups of sliding holes 226 are respectively opened at the upper and lower ends on both sides of the buoyancy plate 225. The lower end of the sealing and blocking sphere 223 is movably installed inside the upper end of the drainage pipe 222. The upper end of the drainage pipe 222 penetrates through the upper and lower ends of the bottom cover 221 and the lower end of the waste heat recovery and treatment tank body 211. There are four groups of limit gaskets 228, and the four groups of limit gaskets 228 are respectively installed on the outer walls of the upper and lower ends of the two groups of moving limit rods 227. The lower end of the moving limit rod 227 is installed at the inner bottom end of the waste heat recovery and treatment tank body 211. The two groups of moving limit rods 227 have the same model and size. The buoyancy plate 225 is movably installed on the outer walls of the two groups of moving limit rods 227. Switch control valves are provided at both ends of the intake pipe 214, the exhaust pipe 215, the external temperature collection spiral pipe 213, and the drainage pipe 222.

[0024] The specific implementation method is as follows: When using the present utility model, when the internal gas is collected by the waste heat recovery treatment tank body 211 and then discharged through the exhaust pipeline 215, water vapor will be generated when the higher temperature touches the inner wall of the waste heat recovery treatment tank body 211. The water vapor accumulates inside the waste heat recovery treatment tank body 211 and then flows into the bottom end inside the waste heat recovery treatment tank body 211 through the waste heat recovery treatment tank body 211. After the water vapor flows into the waste heat recovery treatment tank body 211, it is gradually collected. When there is more water inside the lower end of the waste heat recovery treatment tank body 211, the buoyancy plate 225 arranged inside the waste heat recovery treatment tank body 211 floats due to the water. After the buoyancy plate 225 gradually floats up with the rising water level, it drives the lower pulling rope 224 and the sealing and blocking sphere 223 to move upward. After the sealing and blocking sphere 223 finishes moving upward, the upper end of the drainage pipeline 222 arranged at the lower end loses the sealing and blocking. The water on the upper end of the bottom cover 221 can be discharged through the drainage pipeline 222. After the water level inside the waste heat recovery treatment tank body 211 gradually drops after being discharged, the buoyancy plate 225 drops accordingly. After the buoyancy plate 225 drops, it drives the sealing and blocking sphere 223. After the sealing and blocking sphere 223 moves downward, it returns to the upper end of the drainage pipeline 222 to continue the sealing work on the upper end of the drainage pipeline 222. This device realizes the moving opening and closing of the sealing and blocking sphere 223 by driving the up and down movement of the buoyancy plate 225 with the rising and falling of the water collection water level, effectively avoiding the problem that the internal gas of the waste heat recovery treatment tank body 211 is discharged excessively along with the drainage pipeline 222, and further improving the emission strictness of the entire device. This device can collect and utilize the residual temperature on the side of the waste heat recovery treatment tank body 211 by setting the external temperature collection spiral pipeline 213, greatly improving the residual temperature utilization efficiency of the entire device and effectively improving the collection efficiency of the entire device.

[0025] Working principle of the utility model: When the utility model is in use, when the internal gas is collected by the waste heat recovery treatment tank body 211 and then discharged through the exhaust pipe 215, water vapor will be generated when the higher temperature touches the inner wall of the waste heat recovery treatment tank body 211. After the water vapor accumulates inside the waste heat recovery treatment tank body 211, it flows into the bottom end inside the waste heat recovery treatment tank body 211 through the waste heat recovery treatment tank body 211. When the water vapor flows into the waste heat recovery treatment tank body 211, it is gradually collected. When there is more water inside the lower end of the waste heat recovery treatment tank body 211, the buoyancy plate 225 arranged inside the waste heat recovery treatment tank body 211 floats up due to water. After the buoyancy plate 225 gradually floats up as the water level rises, it drives the lower pulling rope 224 and the sealing and blocking sphere 223 to move upward. After the sealing and blocking sphere 223 completes the upward movement, the upper end of the drainage pipe 222 arranged at the lower end loses the sealing and blocking. The water on the upper end of the bottom cover 221 can be discharged through the drainage pipe 222. After the water level inside the waste heat recovery treatment tank body 211 gradually drops, the buoyancy plate 225 drops accordingly. After the buoyancy plate 225 drops, it drives the sealing and blocking sphere 223. After the sealing and blocking sphere 223 moves downward, it returns to the upper end of the drainage pipe 222 to continue the sealing work on the upper end of the drainage pipe 222.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0027] Second: In the attached drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0028] Finally: The above description is only the preferred embodiment of the utility model and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-temperature waste heat recovery heat exchange tank, comprising an upper cover plate (1), characterized in that: The upper and lower ends of the upper cover plate (1) are provided with high-temperature waste heat recovery and heat exchange auxiliary devices (2); The high-temperature waste heat recovery and heat exchange auxiliary device (2) comprises: a waste heat recovery component (21) and a drainage component (22), wherein the drainage component (22) is arranged at the lower end of the waste heat recovery component (21), and the waste heat recovery component (21) comprises: a waste heat recovery processing tank body (211), an air intake pipe (214), an exhaust pipe (215), an external temperature collection spiral pipe (213) and a side waste heat collection tank (212), wherein the side waste heat collection tank (212) is arranged on the inner walls of the upper and lower ends of the waste heat recovery processing tank body (211), the lower end of the air intake pipe (214) is installed on the upper end of the upper cover plate (1), and the lower end of the upper cover plate (1) is installed on the upper end of the waste heat recovery processing tank body (211), and the external temperature collection spiral pipe (213) is installed on the upper end of the waste heat recovery processing tank body (211). The spiral pipe (213) is installed in the side waste heat collection tank (212), one end of the exhaust pipe (215) is installed on the side of the waste heat recovery tank (211), and the drainage component (22) includes: a sealing blocking ball (223), a buoyancy plate (225), a sliding hole (226), a movable limiting rod (227), a limiting gasket (228) and a drainage pipe (222), the upper end of the drainage pipe (222) is installed with a bottom cover (221), the upper end of the bottom cover (221) is installed on the lower end of the waste heat recovery tank (211), the upper end of the sealing blocking ball (223) is installed with a pulling rope (224), and the upper end of the pulling rope (224) is installed on the lower end of the buoyancy plate (225).

2. A high-temperature waste heat recovery heat exchange tank according to claim 1, characterized in that: The sliding holes (226) and the movable limiting rods (227) are each provided with two groups, and the two groups of sliding holes (226) are respectively opened at the upper and lower ends of both sides of the buoyancy plate (225).

3. The high-temperature waste heat recovery heat exchange tank according to claim 1, characterized in that: The lower end of the sealing blocking ball (223) is movably mounted inside the upper end of the drainage pipe (222), and the upper end of the drainage pipe (222) passes through the upper and lower ends of the bottom cover (221) and the lower end of the waste heat recovery treatment tank (211).

4. A high-temperature waste heat recovery heat exchange tank according to claim 1, characterized in that: The limiting gaskets (228) are provided in four groups, and the four groups of limiting gaskets (228) are respectively installed on the upper and lower outer walls of the two groups of movable limiting rods (227).

5. The high-temperature waste heat recovery heat exchange tank according to claim 1, characterized in that: The lower end of the movable limit rod (227) is installed at the bottom end of the waste heat recovery treatment tank (211), the two groups of movable limit rods (227) are of the same size, the buoyancy plate (225) can be movably installed on the outer wall of the two groups of movable limit rods (227), and the two ends of the air intake pipe (214), the exhaust pipe (215), the external temperature collection spiral pipe (213) and the drainage pipe (222) are all provided with switch control valves.

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