Residual steam recovery device of deaerator

Abstract

The utility model provides a residual steam recovery device of a deaerator, which relates to the technical field of biomass power generation and comprises a tank body, a coil pipe is mounted in the tank body close to the back side, an air inlet is formed in the front side of the tank body, and a linkage rod is rotatably connected in the air inlet. A baffle is installed on the periphery of the linkage rod and located in the gas inlet in a surrounding mode, a driving assembly is connected to the end, close to the bottom, of the linkage rod, a flow dividing assembly is arranged in the tank body and located on the periphery of the gas inlet in a sleeved mode, and the contact area of gas and the coil pipe can be increased through the flow dividing assembly; the baffle and the linkage rod are matched with the driving assembly to drive the flow dividing assembly to rotate rapidly, then gas conveying is more uniform, and compared with a traditional residual steam recycling device, the heat exchange efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of biomass power generation technology, and in particular to a deaerator waste steam recovery device. Background Technology

[0002] Deaerators play a crucial role in biomass power plants. Their main purpose is to remove oxygen from the fuel, ensuring the safety and stability of the combustion process. The deaerator can make up water and spray it out in a spiral shape at a certain angle through the film-forming tube to exchange heat with the heating steam for deoxygenation. The feed water is heated to the saturation temperature corresponding to the deaerator's working pressure to remove dissolved oxygen and other gases, preventing and reducing corrosion of boiler feed water pipes, economizers and other auxiliary equipment. During the operation of the deaerator, the exhaust steam is generally directly released into the atmosphere. This part of the gas contains a large amount of heat, so it needs to be recovered for secondary use.

[0003] Common deaerator waste steam recovery devices have a relatively simple structure, in which the heat exchange coils are usually installed in a tank. However, the diameter of the deaerator exhaust pipe is small, and uneven contact between the gas and the heat exchange coils is likely to occur during the exhaust process, which leads to a reduction in heat exchange efficiency. Therefore, we propose a deaerator waste steam recovery device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Common deaerator waste steam recovery devices have relatively simple structures, and the heat exchange coils are usually installed in a tank. However, the diameter of the deaerator exhaust pipe is small, and uneven contact between the gas and the heat exchange coils is likely to occur during the exhaust process, which leads to a reduction in heat exchange efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A deaerator waste steam recovery device includes a tank, and a coil is installed inside the tank near the back.

[0007] An air inlet is provided on the front of the tank. A connecting rod is rotatably connected inside the air inlet. A baffle is installed around the outside of the connecting rod and inside the air inlet. A drive assembly is connected to one end of the connecting rod near the bottom. A diversion assembly is fitted inside the tank and around the air inlet.

[0008] As a preferred embodiment of this utility model, an inlet pipe and an outlet pipe are installed sequentially from front to back on the top of the tank body. The inlet pipe and the outlet pipe are respectively connected to both ends of the coil, and the coil is fixedly connected to the tank body.

[0009] The technical effect of adopting the above-mentioned further solution is that water can be injected into the coil through the water inlet pipe to exchange heat with the gas, and the water is discharged through the water outlet pipe after heat exchange.

[0010] As a preferred embodiment of this utility model, an exhaust port is provided on the back of the tank, and the tank, the air inlet, the flow divider and the exhaust port are connected.

[0011] The technical effect of adopting the above-mentioned further solution is that the gas discharged from the external deaerator enters the interior of the diversion component through the air inlet, and after being evenly diverted, it enters the interior of the tank to exchange heat with the coil, and finally is discharged from the exhaust port.

[0012] As a preferred embodiment of this utility model, a drainage pipe is provided at the bottom of the tank near the back, and the inner bottom of the tank is a sloping structure inclined towards the drainage pipe.

[0013] The technical effect of adopting the above-mentioned further solution is that the gas condenses upon contact with the coil, forming water droplets. These water droplets can be discharged from the tank through the drain pipe, thereby reducing the waste of water resources. The inclined design inside the tank allows the water droplets to flow more smoothly into the drain pipe, improving ease of use.

[0014] As a preferred embodiment of this utility model, the baffle is made of semi-circular arc metal material, and its surface is treated with nickel plating.

[0015] The technical effect of adopting the above-mentioned further solution is that nickel plating can improve the internal corrosion resistance of the baffle surface, thereby increasing the service life of the baffle.

[0016] As a preferred embodiment of this utility model, the driving assembly includes a driving gear, which is welded to a connecting rod. The bottom of the driving gear is rotatably connected to the tank body. A first driven gear is meshed with the back of the driving gear. A connecting rod is welded to the back of the first driven gear. A second driven gear is welded to one end of the connecting rod near the back. The connecting rod is rotatably connected to the tank body.

[0017] The technical effect of adopting the above-mentioned further solution is that the gas discharged from the external deaerator pushes the baffle, causing the baffle to drive the connecting rod to rotate. This allows the connecting rod to drive the first driven gear to rotate through the drive gear, and then the first driven gear to drive the second driven gear through the connecting rod, providing power for the rotation of the sleeve and improving the stability of use.

[0018] As a preferred embodiment of this utility model, the diversion component includes a sleeve, which is fitted around the air inlet. Several metal tubes are welded around the outer periphery of the sleeve, and an annular retaining ring is welded inside the sleeve near the back side.

[0019] The technical effect of adopting the above-mentioned further solution is that the gas flow rate can be reduced by the annular baffle ring, so that some gas can enter the interior of the metal tube, thereby increasing the contact area between the gas and the coil and improving the heat exchange efficiency.

[0020] As a preferred embodiment of this utility model, a third driven gear is fixedly installed on the periphery of the sleeve and on the back of the metal tube, and the third driven gear is meshed with the second driven gear.

[0021] The technical effect of adopting the above-mentioned further solution is that, through the meshing connection between the third driven gear and the second driven gear, the drive component can drive the sleeve and metal tube to rotate, thereby making the gas flow more uniform and further increasing the contact area with the coil.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] In this invention, the design of the tank and coil allows for an increase in the contact area between the gas and the coil through a diversion component. During gas transport, the diversion component can be driven to rotate rapidly by a baffle and a linkage rod, resulting in more uniform gas transport. Compared with traditional residual steam recovery devices, this invention effectively improves heat exchange efficiency. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of a deaerator waste steam recovery device provided by this utility model;

[0025] Figure 2 A side view of the overall structure of a deaerator waste steam recovery device provided by this utility model;

[0026] Figure 3 A schematic diagram of the top structure of the baffle of a deaerator residual steam recovery device provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the back structure of the diversion component of a deaerator waste steam recovery device provided by this utility model.

[0028] Legend: 1. Tank body; 101. Air inlet; 102. Connecting rod; 103. Baffle; 104. Drive assembly; 1041. Drive gear; 1042. First driven gear; 1043. Connecting rod; 1044. Second driven gear; 105. Diverter assembly; 1051. Sleeve; 1052. Metal pipe; 1053. Annular retaining ring; 1054. Third driven gear; 106. Water inlet pipe; 107. Water outlet pipe; 108. Exhaust port; 109. Drainage pipe; 2. Coil. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Example 1

[0034] like Figure 1-4 As shown, this utility model provides a technical solution: a deaerator residual steam recovery device, including a tank 1, a coil 2 installed inside the tank 1 near the back, an air inlet 101 opened on the front of the tank 1, a connecting rod 102 rotatably connected inside the air inlet 101, a baffle 103 installed around the outside of the connecting rod 102 and inside the air inlet 101, a drive assembly 104 connected to one end of the connecting rod 102 near the bottom, and a diversion assembly 105 sleeved inside the tank 1 and around the air inlet 101.

[0035] Example 2

[0036] like Figure 1-4As shown, an inlet pipe 106 and an outlet pipe 107 are installed sequentially from front to back on the top of the tank body 1. The inlet pipe 106 and the outlet pipe 107 are respectively connected to both ends of the coil 2. The coil 2 is fixedly connected to the tank body 1. Water can be injected into the coil 2 through the inlet pipe 106 to exchange heat with the gas. After heat exchange, the water is discharged through the outlet pipe 107. An exhaust port 108 is provided on the back of the tank body 1. The tank body 1, the air inlet 101, the flow distribution assembly 105 and the exhaust port 108 are connected. The gas discharged from the external deaerator enters the flow distribution assembly 105 through the air inlet 101, and after being evenly distributed, it enters the tank body 1 to exchange heat with the coil 2. Finally, it is discharged through the exhaust port 108. An exhaust port 108 is provided on the bottom of the tank body 1 near the back. The tank 1 has a drain pipe 109. The bottom of the tank is an inclined surface structure that slopes towards the drain pipe 109. When the gas comes into contact with the coil 2, it condenses and forms water droplets. These water droplets can be discharged from the tank 1 through the drain pipe 109, thereby reducing water waste. The inclined surface design inside the tank 1 allows the water droplets to flow more smoothly into the drain pipe 109, improving ease of use. The baffle 103 is made of semi-circular metal and its surface is nickel-plated. Nickel plating improves the internal corrosion resistance of the baffle 103 surface, thereby increasing its service life. The drive assembly 104 includes a drive gear 1041, which is welded to the connecting rod 102. The bottom of the drive gear 1041 is rotatably connected to the tank 1. A first driven gear 1042 is meshed with the back of the drive gear 1041. A connecting rod 1043 is welded to the back of the first driven gear 1042. A second driven gear 1044 is welded to one end of the connecting rod 1043 near the back. The connecting rod 1043 is rotatably connected to the tank body 1. Gas discharged through the external deaerator pushes the baffle 103, causing the baffle 103 to drive the connecting rod 102 to rotate. This allows the connecting rod 102 to drive the first driven gear 1042 to rotate via the drive gear 1041. In turn, the first driven gear 1042 drives the second driven gear 1044 via the connecting rod 1043, providing power for the rotation of the sleeve 1051 and improving operational stability. The diversion assembly 105 includes a sleeve 1051. A sleeve 1051 is fitted around the air inlet 101. Several metal tubes 1052 are welded around the sleeve 1051. An annular retaining ring 1053 is welded inside the sleeve 1051 near the back. The annular retaining ring 1053 reduces the gas flow rate, allowing some gas to enter the metal tubes 1052, thereby increasing the contact area between the gas and the coil 2 and improving heat exchange efficiency. A third driven gear 1054 is fixedly installed around the sleeve 1051 and on the back of the metal tubes 1052. The third driven gear 1054 meshes with a second driven gear 1044. This meshing connection allows the drive assembly 104 to rotate the sleeve 1051 and the metal tubes 1052.This results in more uniform gas flow and further increases the contact area with coil 2.

[0037] The working process of this utility model is as follows: When using a deaerator waste steam recovery device to recover and exchange heat from the gas discharged from an external deaerator, the gas first enters the inside of the diversion assembly 105 through the inlet 101, and after being evenly diverted, it enters the inside of the tank 1 to exchange heat with the coil 2, and finally is discharged through the exhaust port 108. During the process, when the gas enters the inlet 101, it pushes the baffle 103, which in turn drives the third driven gear 1054 to rotate through the connecting rod 102 and the drive assembly 104. This causes the third driven gear 1054 to drive the sleeve 1051 and the metal tube 1052 to rotate, so that the gas can contact the coil 2 more evenly. Compared with traditional waste steam recovery devices, this effectively improves the heat exchange efficiency.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deaerator waste steam recovery device, comprising a tank (1), characterized in that: A coil (2) is installed inside the tank (1) near the back. The tank (1) has an air inlet (101) on its front side. A connecting rod (102) is rotatably connected inside the air inlet (101). A baffle (103) is installed around the connecting rod (102) and inside the air inlet (101). A drive assembly (104) is connected to one end of the connecting rod (102) near the bottom. A diversion assembly (105) is fitted inside the tank (1) and around the air inlet (101).

2. The deaerator waste steam recovery device according to claim 1, characterized in that: The top of the tank (1) is equipped with an inlet pipe (106) and an outlet pipe (107) in sequence from front to back. The inlet pipe (106) and the outlet pipe (107) are respectively connected to the two ends of the coil (2). The coil (2) is fixedly connected to the tank (1).

3. The deaerator waste steam recovery device according to claim 1, characterized in that: The tank (1) has an exhaust port (108) on its back side, and the tank (1), air inlet (101), flow divider (105) and exhaust port (108) are connected.

4. The deaerator waste steam recovery device according to claim 1, characterized in that: The bottom of the tank (1) is provided with a drainage pipe (109) near the back, and the inner bottom of the tank (1) is a sloping structure inclined towards the drainage pipe (109).

5. The deaerator waste steam recovery device according to claim 1, characterized in that: The baffle (103) is made of semi-circular metal and its surface is treated with nickel plating.

6. The deaerator waste steam recovery device according to claim 1, characterized in that: The drive assembly (104) includes a drive gear (1041), which is welded to a connecting rod (102). The bottom of the drive gear (1041) is rotatably connected to the tank body (1). A first driven gear (1042) is meshed with the back of the drive gear (1041). A connecting rod (1043) is welded to the back of the first driven gear (1042). A second driven gear (1044) is welded to one end of the connecting rod (1043) near the back. The connecting rod (1043) is rotatably connected to the tank body (1).

7. The deaerator waste steam recovery device according to claim 1, characterized in that: The diversion assembly (105) includes a sleeve (1051), which is sleeved around the air inlet (101). A plurality of metal tubes (1052) are welded around the outer periphery of the sleeve (1051), and an annular retaining ring (1053) is welded inside the sleeve (1051) near the back.

8. A deaerator waste steam recovery device according to claim 7, characterized in that: A third driven gear (1054) is fixedly installed on the periphery of the sleeve (1051) and on the back of the metal tube (1052), and the third driven gear (1054) meshes with the second driven gear (1044).

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