Deoxidizing equipment for thermal power generating unit of thermal power plant

Abstract

The utility model relates to the technical field of thermal power generation, in particular to deoxidizing equipment of a thermal power generating unit of a thermal power plant, which comprises a casing, a water inlet pipe is fixedly mounted at the top of the casing, an air inlet pipe extending to the outside of the casing is fixedly mounted on the inner bottom wall of the casing, and a mixing component is arranged in the casing. The mixing assembly comprises a rotating rod movably mounted in the shell, a bearing is fixedly mounted outside the rotating rod, and a disc is fixedly mounted outside the bearing. According to the deoxidizing equipment for the thermal power generating unit of the thermal power plant, water can be conveyed into the disc through the water inlet pipe, steam can be conveyed into the disc through the air inlet pipe, the steam can heat the water in the disc, and then a motor works to drive a rotating rod and a stirring rod to rotate; therefore, water and steam in the disc can be fully mixed and heated through the stirring rod, the contact area of the water and the steam is increased, heat exchange can be well conducted between the steam and the water, and the utilization rate of the steam is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power generation, in particular to deoxygenation equipment for thermal power units in a thermal power plant. Background Art

[0002] Thermal power generation is a method of generating electricity by using the heat energy generated by the combustion of combustibles and converting it into electrical energy through a power generation device. Specifically, thermal power generation usually uses the heat energy generated by the combustion of combustibles such as coal, oil or natural gas to heat water, turning the water into high-temperature, high-pressure steam, which then drives the generator to generate electricity.

[0003] In the process of thermal power generation, deoxygenation is a very critical link. In order to prevent corrosion of thermal equipment and its pipelines, oxygen in the water supply system should be eliminated quickly, otherwise iron oxide will be deposited or attached to the wall. Existing deoxygenation equipment generally uses water flow and steam for deoxygenation, but the utilization rate of steam is not high, the contact area between water flow and steam is small, and the contact is insufficient, so that the water after deoxygenation still contains oxygen, resulting in poor deoxygenation effect. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a deoxygenation device for a thermal power unit in a thermal power plant, which has the advantages of being easy to fully mix water flow and steam, and solves the problem that the contact area between water flow and steam is small and the contact is insufficient, so that the water after deoxygenation still contains oxygen, resulting in poor deoxygenation effect.

[0005] In order to achieve the above-mentioned purpose of facilitating the sufficient mixing of water flow and steam, the utility model provides the following technical solution: a deoxygenation device for a thermal power unit in a thermal power plant, comprising a shell, a water inlet pipe is fixedly installed on the top of the shell, an air inlet pipe extending to the outside of the shell is fixedly installed on the inner bottom wall of the shell, and a mixing assembly is arranged inside the shell;

[0006] The mixing assembly includes a rotating rod movably installed inside a shell, a bearing is fixedly installed on the outside of the rotating rod, a disc is fixedly installed on the outside of the bearing, a stirring rod is fixedly installed on the outside of the rotating rod and on the inner side of the disc, a motor is arranged on the left side of the shell, and the output shaft of the motor is fixedly connected to one end of the rotating rod.

[0007] Furthermore, a water pipe connected to the water inlet pipe is fixedly installed on the inner top wall of the shell, and the water pipe is fixedly connected to the water inlet pipe. A downpipe connected to the disc is fixedly installed on the bottom of the water pipe, and the downpipe is fixedly connected to the disc.

[0008] Furthermore, an air outlet pipe connected to the disc is fixedly installed on the top of the air inlet pipe, and the air outlet pipe is fixedly connected to the disc.

[0009] Furthermore, a water outlet pipe is fixedly installed at the bottom of the disc, and a drainage pipe extending to the outside of the shell is fixedly installed at the top of the water outlet pipe.

[0010] Furthermore, valves are provided in the water outlet pipe and the drain pipe, a pipe hole adapted to the drain pipe is provided on the right side of the shell, and the drain pipe is fixedly connected to the shell.

[0011] Furthermore, a bracket is fixedly installed on the left side of the shell, and the motor is located on the inner side of the bracket and fixedly connected to the bracket.

[0012] Furthermore, a through hole adapted to the rotating rod is provided on the left side wall of the shell, a groove adapted to the rotating rod is provided on the right side wall of the shell, and the rotating rod is rotatably connected to the shell.

[0013] Compared with the prior art, the utility model provides a deoxidation device for a thermal power unit in a thermal power plant, which has the following beneficial effects:

[0014] The deoxidation equipment of the thermal power unit of the thermal power plant can transport water into the disc through the water inlet pipe, and can transport steam into the disc through the air inlet pipe. The steam can heat the water in the disc, and then the motor drives the rotating rod and the stirring rod to rotate, so that the stirring rod can fully mix and heat the water and steam in the disc, increase the contact area between water and steam, make the steam better exchange heat with water, improve the utilization rate of steam, effectively deoxidize, and is simple to operate and easy to use. It solves the problem that the contact area between water flow and steam is small, the contact is insufficient, and the water after deoxidation still contains oxygen, resulting in poor deoxidation effect, and effectively improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the rotating rod, bearing and disc of the utility model;

[0017] Figure 3 It is a front view of the structure of the utility model.

[0018] In the figure: 1. shell; 2. water inlet pipe; 3. air inlet pipe; 4. rotating rod; 5. bearing; 6. disc; 7. stirring rod; 8. motor; 9. water guide pipe; 10. down pipe; 11. air outlet pipe; 12. water outlet pipe; 13. drain pipe; 14. bracket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A deoxygenation device for a thermal power unit in a thermal power plant comprises a shell 1, a water inlet pipe 2 is fixedly installed on the top of the shell 1, and a water guide pipe 9 connected to the water inlet pipe 2 is fixedly installed on the inner top wall of the shell 1, wherein the water guide pipe 9 is fixedly connected to the water inlet pipe 2, and water enters the water guide pipe 9 in the shell 1 through the water inlet pipe 2.

[0021] An air inlet pipe 3 extending to the outside of the shell 1 is fixedly mounted on the inner bottom wall of the shell 1 , and steam enters the inside of the shell 1 through the air inlet pipe 3 .

[0022] A mixing assembly is provided inside the housing 1 for fully mixing and heating water and steam.

[0023] Increase the contact area between water and steam and improve the deoxygenation efficiency.

[0024] The mixing assembly includes a rotating rod 4 movably installed inside the shell 1. In addition, the left side wall of the shell 1 is provided with a through hole adapted to the rotating rod 4, and the right side wall of the shell 1 is provided with a groove adapted to the rotating rod 4, wherein the rotating rod 4 is rotatably connected to the shell 1.

[0025] A bearing 5 is fixedly installed on the outside of the rotating rod 4, and a disc 6 is fixedly installed on the outside of the bearing 5. By setting the bearing 5, the disc 6 can remain in a fixed state when the rotating rod 4 rotates. In addition, a water pipe 10 connected to the disc 6 is fixedly installed at the bottom of the water pipe 9, wherein the water pipe 10 is fixedly connected to the disc 6, and water enters the inside of the disc 6 through the water pipe 10.

[0026] An air outlet pipe 11 connected to the disc 6 is fixedly installed on the top of the air inlet pipe 3 , wherein the air outlet pipe 11 is fixedly connected to the disc 6 , and steam enters the disc 6 through the air outlet pipe 11 , and water and steam are mixed in the disc 6 .

[0027] A stirring rod 7 is fixedly installed outside the rotating rod 4 and inside the disc 6. The rotating rod 4 drives the stirring rod 7 to rotate, which can stir and mix the steam and water in the disc 6, so that the steam can better heat the water, thereby improving the heating and mixing efficiency.

[0028] A motor 8 is arranged on the left side of the shell 1, and the output shaft of the motor 8 is fixedly connected to one end of the rotating rod 4. In addition, a bracket 14 is fixedly installed on the left side of the shell 1, wherein the motor 8 is located on the inner side of the bracket 14 and is fixedly connected to the bracket 14. The bracket 14 is used to fix the motor 8 to prevent the motor 8 from falling.

[0029] A water outlet pipe 12 is fixedly installed at the bottom of the disc 6. The water outlet pipe 12 is located in front of the air outlet pipe 11, and a drain pipe 13 extending to the outside of the shell 1 is fixedly installed on the top of the water outlet pipe 12, wherein valves are provided in the water outlet pipe 12 and the drain pipe 13, and the valves are used to control the outflow of water. In addition, a pipe hole compatible with the drain pipe 13 is opened on the right side of the shell 1, and the drain pipe 13 is fixedly connected to the shell 1. The deoxygenated water in the disc 6 first flows out from the water outlet pipe 12 and then is discharged through the drain pipe 13.

[0030] Working principle:

[0031] When in use, the water to be deoxygenated enters the water conduit 9 through the water inlet pipe 2, and the water enters the disc 6 through the downpipe 10. At the same time, the steam enters the outlet pipe 11 from the air inlet pipe 3, and then enters the disc 6 from the outlet pipe 11. The steam heats the water. Then the motor 8 is turned on, and the motor 8 drives the rotating rod 4 to rotate. Under the rotation of the rotating rod 4, the stirring rod 7 also rotates, so that the water and steam in the disc 6 are stirred and mixed, so that they are fully mixed and heated, so as to increase the contact area between the steam and water, thereby removing oxygen from the water in the disc 6. The water after deoxygenation will flow from the water outlet pipe 12 to the drain pipe 13, and then be discharged from the drain pipe 13.

[0032] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the text.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deoxidation device for a thermal power unit in a thermal power plant, comprising a housing (1), characterized in that: A water inlet pipe (2) is fixedly mounted on the top of the shell (1), an air inlet pipe (3) extending to the outside of the shell (1) is fixedly mounted on the inner bottom wall of the shell (1), and a mixing assembly is arranged inside the shell (1); The mixing assembly comprises a rotating rod (4) movably mounted inside the housing (1); a bearing (5) is fixedly mounted on the outside of the rotating rod (4); a disc (6) is fixedly mounted on the outside of the bearing (5); a stirring rod (7) is fixedly mounted on the outside of the rotating rod (4) and on the inside of the disc (6); a motor (8) is arranged on the left side of the housing (1); and an output shaft of the motor (8) is fixedly connected to one end of the rotating rod (4); A water pipe (9) connected to the water inlet pipe (2) is fixedly mounted on the inner top wall of the shell (1), the water pipe (9) being fixedly connected to the water inlet pipe (2), a downpipe (10) connected to the disc (6) being fixedly mounted on the bottom of the water pipe (9), the downpipe (10) being fixedly connected to the disc (6), an air outlet pipe (11) connected to the disc (6) being fixedly mounted on the top of the air inlet pipe (3), the air outlet pipe (11) being fixedly connected to the disc (6), a water outlet pipe (12) being fixedly mounted on the bottom of the disc (6), and a drainage pipe (13) extending to the outside of the shell (1) being fixedly mounted on the top of the water outlet pipe (12).

2. The deoxygenation equipment for a thermal power unit in a thermal power plant according to claim 1, characterized in that: Valves are provided in the water outlet pipe (12) and the drain pipe (13); a pipe hole matching the drain pipe (13) is provided on the right side of the shell (1); and the drain pipe (13) is fixedly connected to the shell (1).

3. The deoxygenation equipment for a thermal power unit in a thermal power plant according to claim 1, characterized in that: A bracket (14) is fixedly mounted on the left side of the housing (1), and the motor (8) is located on the inner side of the bracket (14) and is fixedly connected to the bracket (14).

4. The deoxygenation equipment for a thermal power unit in a thermal power plant according to claim 1, characterized in that: The left side wall of the shell (1) is provided with a through hole matched with the rotating rod (4), and the right side wall of the shell (1) is provided with a groove matched with the rotating rod (4). The rotating rod (4) is rotatably connected to the shell (1).

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