Exhaust gas recovery device for deaerator

Abstract

The utility model discloses an exhaust gas recovery device for a deaerator. The exhaust recovery device comprises an equipment body, a rotating assembly, a driving assembly and a butt joint assembly, the rotating assembly is arranged in the equipment body, the butt joint assembly is arranged at one end of the rotating assembly, the other end of the rotating assembly is connected with the driving assembly, and a steam inlet is formed in the lower bottom of the equipment body; the other end of the connecting pipe is connected with a steam discharge pipe of the deaerator; an exhaust port is formed in the upper top of the equipment main body. The deaerator exhaust gas recovery device solves the problems that an existing deaerator exhaust gas recovery device can only heat gas through steam during use, the recovery effect is low, and other media cannot be heated.

Description

Technical Field

[0001] This utility model relates to the field of deaerator exhaust gas recovery, specifically to an exhaust gas recovery device for deaerators. Background Technology

[0002] In the production processes of industrial and power enterprises, thermal deaeration is typically used for boiler feedwater to ensure feedwater quality. This deaeration method has the advantages of being simple, reliable, and effective. The steam generated by the deaerator contains a large amount of heat, and recovering and utilizing this portion of steam can generate significant economic benefits.

[0003] Chinese utility model patent (publication number: CN217441619U) entitled "A Deaerator Exhaust Gas Recovery Device" discloses a deaerator exhaust gas recovery device. This device includes a cooling chamber with a hollow structure open at both ends. A return flow assembly is connected to the cooling chamber, comprising a main pipe and several return pipes evenly spaced. Both ends of each return pipe are fixedly connected to the main pipe. An air supply hood is fixedly connected to one end of the cooling chamber, and an exhaust fan is installed at the other end. Through the cooperation of the cooling chamber, air supply hood, return flow assembly, and exhaust fan, the heat in the water vapor discharged from the deaerator can be recovered and utilized, thereby reducing energy waste.

[0004] Existing deaerator exhaust gas recovery devices can only heat the gas with steam during use, resulting in low recovery efficiency and the inability to heat other media; therefore, they do not meet current requirements. To address this, a new exhaust gas recovery device for deaerators is proposed. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an exhaust gas recovery device for deaerators. This exhaust gas recovery device can heat various media, ensuring uniform heating, and can recover heat energy during the deaerator exhaust process, resulting in high recovery efficiency.

[0006] To achieve the above objectives, the technical solution designed by this utility model is as follows:

[0007] This utility model provides an exhaust gas recovery device for a deaerator, used to recover steam from the deaerator to heat the medium. The device includes a main body, a rotating assembly, and a docking assembly. The rotating assembly is located inside the main body, with the docking assembly at one end. A steam inlet is located at the bottom of the main body, and a connecting pipe is located at the other end of the steam inlet, connecting to the steam exhaust pipe of the deaerator. An exhaust port is located at the top of the main body. Thus, steam from the deaerator enters the main body, and the rotating assembly stores the required heating medium. The steam in the main body heats the medium, which can be any of water, gas, or material.

[0008] Furthermore, the rotating assembly includes a rotating drum, one end of which is connected to a turntable, which is located at one end of the main body of the equipment. The other end of the rotating drum is equipped with an inlet control valve and an outlet control valve, so that the medium can enter and exit the rotating drum through the inlet control valve and the outlet control valve.

[0009] Furthermore, the docking assembly includes an end cap, the inner wall of which is provided with a telescopic tube, and the upper and lower ends of the telescopic tube are provided with electric telescopic rods. The telescopic ends of the electric telescopic rods are provided with magnetic coupling heads that are respectively connected to the valve ports of the feed control valve and the discharge control valve. The lower bottom of the inner wall of the end cap is provided with a bracket, which fits against the outer wall of the rotating drum. In this way, the telescopic tube is connected to the feed control valve and the discharge control valve respectively, which facilitates the feeding and discharging operations. When the rotating drum rotates, the electric telescopic rod retracts backward, causing the magnetic coupling head to separate from the valve port, so as not to affect the rotation of the rotating drum. This facilitates the feeding and discharging of the medium from the outside by means of a fan, pump, etc.

[0010] Furthermore, the other end of the main body of the equipment is provided with an inlet and an outlet, and the inlet and outlet are respectively connected to a telescopic pipe.

[0011] As a preferred embodiment, the system also includes a drive assembly. The other end of the turntable is connected to the drive assembly, which drives the turntable and the drum to rotate. This rotation of the drum under the action of the drive assembly makes the medium heated more evenly.

[0012] Furthermore, the drive assembly includes a stepper motor, the output end of which is equipped with a first pulley. The first pulley is connected to a second pulley via a belt. The second pulley is located at the other end of the turntable. The stepper motor drives the first pulley to rotate, and the belt drives the second pulley to rotate, thereby driving the drum and making the medium in the drum heat up evenly. In this way, the stepper motor can ensure that the telescopic pipe of the feed inlet is accurately connected to the feed control valve, and also ensure that the telescopic pipe of the discharge inlet is accurately connected to the discharge control valve.

[0013] Furthermore, the shell of the rotating drum is made of aluminum, and the shell of the main body of the equipment is made of ceramic insulation material. The medium can be any of water, gas, or material. In this way, aluminum has good thermal conductivity, which allows steam to conduct heat to the medium through the aluminum rotating drum, thereby accelerating the heat recovery efficiency and improving the recovery effect. The use of ceramic insulation material for the outer shell can improve the external insulation effect and prevent the internal heat from dissipating too quickly.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model connects to the steam exhaust pipe of the deaerator via a pipe. Steam enters the main body of the equipment through the pipe and steam inlet. The rotating drum is filled with the medium to be heated, such as water, gas, or material. After the steam enters the main body of the equipment, it can heat the medium inside the rotating drum through heat transfer, thereby recovering the heat energy during the deaerator exhaust process. This method can heat different media as needed, making the recovery and utilization more flexible. It solves the problem that existing deaerator exhaust recovery devices can only heat the gas with steam, resulting in low recovery and utilization efficiency and the inability to heat other media.

[0016] 2. The first pulley is driven to rotate by a stepper motor, which in turn drives the second pulley to rotate via a belt, ultimately causing the turntable and drum to rotate. This rotation ensures that the medium inside the drum is heated more evenly during the steam heat transfer process, effectively preventing uneven heating of the material. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the deaerator exhaust recovery device;

[0018] Figure 2 A side perspective view of the main body of the deaerator exhaust recovery unit;

[0019] Figure 3 A schematic diagram of the rotating assembly structure of the deaerator exhaust recovery device;

[0020] Figure 4 A schematic diagram of the docking assembly structure of the deaerator exhaust recovery device;

[0021] Figure 5 This is a simplified structural diagram of a deaerator.

[0022] In the diagram: 1. Deaerator; 102. Steam pipe; 2. Main body of equipment; 201. Steam inlet; 202. Connecting pipe; 203. Exhaust port; 204. Feed inlet; 205. Discharge inlet; 3. Rotating assembly; 301. Rotary drum; 302. Turntable; 303. Feed control valve; 304. Discharge control valve; 4. Connecting assembly; 401. End cap; 402. Telescopic pipe; 403. Electric telescopic rod; 404. Magnetic connecting pipe head; 405. Bracket; 5. Drive assembly; 501. Stepper motor; 502. First pulley; 503. Belt; 504. Second pulley. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to specific embodiments, so that those skilled in the art can understand it.

[0024] Combination Figures 1-5As shown, an exhaust gas recovery device for a deaerator is used to recover steam from the deaerator 1 to heat the medium. It includes a main body 2, a rotating assembly 3, and a docking assembly 4. The rotating assembly 3 is located inside the main body 2, and the docking assembly 4 is located at one end of the rotating assembly 3. A steam inlet 201 is located at the bottom of the main body 2, and a connecting pipe 202 is located at the other end of the steam inlet 201. The other end of the connecting pipe 202 is connected to the steam exhaust pipe 101 of the deaerator 1. An exhaust port 203 is located at the top of the main body 2. Thus, steam from the deaerator 1 enters the main body 2. The rotating assembly 3 stores the required heating medium. The steam heating medium in the main body 2 can be any of water, gas, or material. The rotating assembly 3 includes a rotating drum 301, one end of which is connected to a turntable 302 located at one end of the main body 2. An inlet control valve 303 and an outlet control valve 304 are located at the other end of the rotating drum 301. The docking assembly 4 includes an end cap 401. A telescopic tube 402 is provided on the inner wall of the end cap 401. Electric telescopic rods 403 are provided at both the upper and lower ends of the telescopic tube 402. The telescopic ends of the electric telescopic rods 403 are provided with magnetic docking connectors 404 that respectively dock with the valve ports of the feed control valve 303 and the discharge control valve 304. A bracket 405 is provided at the bottom of the inner wall of the end cap 401, and the bracket 405 is in contact with the outer wall of the rotating drum 301. An inlet 204 and an outlet 205 are provided on the outer wall of the other end of the main body 2, and the inlet 204 and outlet 205 are respectively connected to the telescopic tube 402. The exhaust recovery device also includes a drive assembly 5. The other end of the turntable 302 is connected to the drive assembly 5, so that the drive assembly 5 drives the turntable 302 and the rotating drum 301 to rotate. The drive assembly 5 includes a stepper motor 501. A first pulley 502 is located at the output end of the stepper motor 501. The first pulley 502 is connected to a second pulley 504 via a belt 503. The second pulley 504 is located at the other end of the turntable 302. The stepper motor 501 drives the first pulley 502 to rotate, and the belt 503 drives the second pulley 504 to rotate, thereby driving the rotating drum 301 and ensuring uniform heating of the medium within the drum 301. The shell of the rotating drum 301 in this exhaust gas recovery device is made of aluminum, while the shell of the main body 2 is made of ceramic insulation material. The medium can be any of water, gas, or other materials.

[0025] In practical use, the exhaust gas recovery device for deaerators of this utility model, combined with... Figures 1-5 As shown:

[0026] The exhaust gas recovery device for a deaerator of this utility model includes a main body 2. A steam inlet 201 is provided at the bottom of the main body 2, and a connecting pipe 202 is provided at the lower end of the steam inlet 201. The other end of the connecting pipe 202 is connected to the steam exhaust pipe 101 of the deaerator 1. An exhaust port 203 is provided at the top of the main body 2. A rotating assembly 3 for storing the required heating medium is provided inside the main body 2. The rotating assembly 3 includes a rotating drum 301. One end of the rotating assembly 3 is provided with a driving assembly 5 for driving its rotation, and the other end of the rotating assembly 3 is provided with... The device is equipped with a docking assembly 4 for feeding and discharging the storage medium. It is connected to the steam exhaust pipe 101 of the deaerator 1 via a pipe 202. Steam enters the main body 2 of the device through the steam inlet 201. The rotating drum 301 is filled with the medium to be heated, such as water, gas, or materials. After the steam enters, it heats the medium inside the drum through heat transfer, thereby recovering the heat energy during the deaerator exhaust process. This method allows for heating different media as needed, making the recovery and utilization more flexible. The shell of the rotating drum 301 is made of aluminum, while the outer shell of the main body 2 is made of ceramic insulation material. Aluminum has good thermal conductivity, allowing steam to conduct heat to the internal medium through the aluminum rotating drum 301, accelerating heat recovery efficiency and improving the recovery effect. The ceramic insulation material on the outer shell improves external insulation, preventing excessive heat dissipation from the interior.

[0027] After rising to the top, the steam is discharged from the pipe at the exhaust port 203 to other equipment for further processing.

[0028] Combination Figure 1As shown, the drive assembly 5 includes a stepper motor 501, with a first pulley 502 at the output end of the stepper motor 501 and a second pulley 504 at one end of the main body 2 of the equipment. The first pulley 502 is connected to the second pulley 504 via a belt 503. A turntable 302 is provided at one end of the rotating drum 301, and the turntable 302 is connected to the second pulley 504. The stepper motor 501 drives the first pulley 502 to rotate, and the belt 503 drives the second pulley 504 to rotate, ultimately causing the turntable 302 and the rotating drum 301 to rotate. This rotation ensures that the medium inside the rotating drum 301 is heated more evenly during the steam heat transfer process, effectively preventing uneven heating of the material medium. The stepper motor 501 is a discrete control motor that converts electrical pulse excitation signals into corresponding angular or linear displacement values. This type of motor moves one step for each input electrical pulse. Therefore, while ensuring the rotation of the drum 301, its fixed rotation angle facilitates subsequent feeding and discharging docking operations at the docking assembly 4. This ensures accurate docking of the telescopic tube 402 of the feed inlet 204 with the feed control valve 303, and also ensures accurate docking of the telescopic tube 402 of the discharge inlet 205 with the discharge control valve 304. Furthermore, the feed control valve 303 and the discharge control valve 304 are not centrally symmetrically arranged, so even when the stepper motor 501 is set to rotate 180°, the telescopic tube 402 of the discharge inlet 205 will not misalign with the feed control valve 303.

[0029] Combination Figures 2-4 As shown, the other end of the rotating drum 301 is equipped with an inlet control valve 303 and an outlet control valve 304. The docking assembly 4 includes an end cap 401, on the inner wall of the end cap 401, two telescopic tubes 402 are provided, and electric telescopic rods 403 are provided at both the upper and lower ends of the telescopic tubes 402. The telescopic ends of the electric telescopic rods 403 are provided with magnetic coupling pipe heads 404 that mate with the valve ports of the inlet control valve 303 and the outlet control valve 304. A bracket 405 is provided at the bottom of the inner wall of the end cap 401, and the bracket 405 fits against the outer wall of the rotating drum 301. The outer wall of the other end of the equipment body 2 is provided with an inlet pipe 204 and an outlet pipe 204. The inlet 205 and the outlet 204 are respectively connected to two telescopic pipes 402; the electric telescopic rod 403 is used to drive the telescopic pipes 402 to move in and out. The magnetic coupling pipe head 404 is connected to the valve ports of the feed control valve 303 and the discharge control valve 304 by telescopic movement, so that the two are connected and the feed and discharge operations are convenient. When the drum 301 rotates, the electric telescopic rod 403 retracts backward, which drives the magnetic coupling pipe head 404 to separate from the valve port, so that it does not affect the rotation of the drum 301, and it is convenient to feed and discharge externally through the fan, pump body, etc.

[0030] The working principle of this utility model:

[0031] In operation, the electric telescopic rod 403 drives the magnetic connector 404 forward, aligning it with the feed control valve 303. The medium is then fed into the rotating drum 301 through the feed inlet 204. The electric telescopic rod 403 retracts, closing the feed control valve 303. Steam is then fed into the main body 2 of the equipment via the connector 202. The steam moves from bottom to top, heating the rotating drum 301 during this process. The aluminum material has excellent thermal conductivity, allowing the steam to conduct heat through the aluminum rotating drum 301 to the internal medium, accelerating heat recovery efficiency and improving the recovery effect. The outer shell uses ceramic insulation material. The material can improve the external heat preservation effect and prevent the internal heat from dissipating too quickly. The stepper motor 501 drives the first pulley 502 to rotate, and through the connection of the belt 503, it drives the second pulley 504 to rotate, and finally drives the turntable 302 and the rotating drum 301 to rotate. Through rotation, the medium in the rotating drum 301 can be heated more evenly during the steam heat transfer process. The stepper motor 501 can ensure that the telescopic pipe 402 of the feed port 204 and the feed control valve 303 are accurately connected, and also ensure that the telescopic pipe 402 of the discharge port 205 and the discharge control valve 304 are accurately connected.

[0032] After the steam rises to the top, it is discharged to the outside through the exhaust port 203. The electric telescopic rod 403 drives the magnetic coupling pipe head 404 to connect with the discharge control valve 304, and discharges the medium in the rotating drum 301 from the discharge pipe port 205.

[0033] All other parts not described in detail are existing technologies. Although the above embodiments provide a detailed description of the present invention, they are only some embodiments of the present invention, not all embodiments. People can obtain other embodiments based on this embodiment without creative effort, and these embodiments all fall within the protection scope of the present invention.

Claims

1. An exhaust gas recovery device for a deaerator, used to recover steam from the deaerator (1) to heat the medium, characterized in that: The equipment includes a main body (2), a rotating component (3) and a docking component (4). The rotating component (3) is installed inside the main body (2). The docking component (4) is installed at one end of the rotating component (3). A steam inlet (201) is installed at the bottom of the main body (2). A pipe (202) is installed at the other end of the steam inlet (201). The other end of the pipe (202) is connected to the steam pipe (101) of the deaerator (1). An exhaust port (203) is installed at the top of the main body (2).

2. The exhaust gas recovery device for a deaerator according to claim 1, characterized in that: The rotating assembly (3) includes a rotating drum (301), one end of which is connected to a turntable (302). The turntable (302) is located at one end of the main body (2) of the equipment, and the other end of the rotating drum (301) is provided with a feed control valve (303) and a discharge control valve (304).

3. The exhaust gas recovery device for a deaerator according to claim 2, characterized in that: The docking assembly (4) includes an end cap (401), an extension tube (402) is provided on the inner wall of the end cap (401), an electric extension rod (403) is provided at the upper and lower ends of the extension tube (402), and a magnetic docking pipe head (404) is provided at the extension end of the electric extension rod (403) to dock with the valve ports of the feed control valve (303) and the discharge control valve (304) respectively. A bracket (405) is provided at the bottom of the inner wall of the end cap (401), and the bracket (405) is in contact with the outer wall of the rotating drum (301).

4. The exhaust gas recovery device for a deaerator according to claim 3, characterized in that: The other end of the outer wall of the main body (2) of the equipment is provided with a feed inlet (204) and a discharge outlet (205), and the feed inlet (204) and the discharge outlet (205) are respectively connected to the telescopic pipe (402).

5. The exhaust gas recovery device for a deaerator according to claim 4, characterized in that: It also includes a drive assembly (5), and the other end of the turntable (302) is connected to the drive assembly (5).

6. The exhaust gas recovery device for a deaerator according to claim 5, characterized in that: The drive assembly (5) includes a stepper motor (501), and the output end of the stepper motor (501) is provided with a first pulley (502). The first pulley (502) is connected to the second pulley (504) via a belt (503). The second pulley (504) is located at the other end of the turntable (302).

7. The exhaust gas recovery device for a deaerator according to claim 6, characterized in that: The shell of the rotating drum (301) is made of aluminum, and the shell of the main body of the equipment (2) is made of ceramic insulation material. The medium can be any one of water, gas and material.

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