A self-adjusting membrane deoxidation device for thermal power generation

Abstract

The present invention relates to the technical field of fiber membrane deoxygenation, and more specifically discloses a self-adjusting membrane deoxygenation device for thermal power generation, including a shell assembly, wherein the shell assembly includes a shell, the top and bottom of the shell are respectively fixedly connected with a water inlet end cover and a water outlet end cover, the water inlet end cover and the water outlet end cover are both installed on the shell assembly by bolts, the top and bottom of the shell are respectively provided with a diversion air port and a vent hole, the side of the shell is provided with an air inlet and an air outlet, and the shell is provided with a diversion cavity on the inner side of the air inlet and the air outlet; the present invention is conducive to utilizing the increase in the flow rate of pure nitrogen gas by providing a rectifying assembly and an air pressure cover, so that the rotation of the rectifying assembly adjusts the spiral angle of the fiber, thereby increasing the surface area of ​​the hollow fiber, the outer surface of the fiber has a higher gas exchange interface, the permeation effect of dissolved oxygen is better, and the overall deoxygenation effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fiber membrane deoxidation, and more specifically to a self-adjusting membrane deoxidation device for thermal power generation. Background Art

[0002] In the field of thermal power generation, gas will continuously dissolve into the feed water during the operation of the power plant. This is mainly caused by the air brought in by the make-up water, and air leaking into the equipment working under vacuum in the system (such as condensers and some low-pressure heaters) and the loose parts of pipe accessories. The oxygen dissolved in the water will have a strong corrosive effect on the thermal equipment and pipes made of steel. In addition, if the water contains oxygen, green algae will also be generated. Therefore, from the perspective of preventing equipment corrosion, improving thermal economy and avoiding water quality deterioration, it is very necessary for thermal power plants to deoxygenate the feed water.

[0003] A Chinese invention patent with publication number CN106178959B discloses a recoverable membrane contactor and its recovery process, wherein the recoverable membrane contactor comprises: an outer shell, a membrane filter element, a central tube, an inlet and an outlet; the outer shell has a shell and end covers located at both ends of the shell, the inlet and the outlet are arranged on the end covers at both ends and are connected to the membrane filter element, and one end of the membrane filter element connected to the inlet has a reserved end, and the reserved end protrudes from the shell. The recoverable membrane contactor of the present invention can be recovered after long-term use, thereby reducing the replacement frequency of the membrane contactor and saving the operating cost of the membrane contactor.

[0004] It can be seen that in the process of using fiber membrane to deoxygenate wastewater, the particulate matter in the wastewater usually needs to be deoxygenated after filtration. Due to the continuous accumulation of internal filter residues, the fiber bundle needs to cut off the filtration part after a period of use to ensure the stability of the penetration effect, which will cause the fiber bundle to become shorter and affect normal use. Although the external filtration mechanism has a higher filtration effect, it undoubtedly increases the floor space and increases energy consumption. Secondly, the existing membrane contactor deoxygenation device uses a single-point injection method to input ammonia gas into the interior, which makes the internal reaction uniformity poor and cannot effectively react at the location far away from the gas inlet and outlet. In addition, the existing fiber deoxygenation mechanism cannot adjust the rate and cannot adapt to the same deoxygenation effect at different flow rates. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a self-adjusting membrane deoxygenation device for thermal power generation to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical scheme: a self-adjusting membrane deoxygenation device for thermal power generation, comprising a shell assembly, the shell assembly comprising a shell, the top and bottom of the shell are respectively fixedly connected with a water inlet end cover and a water outlet end cover, the water inlet end cover and the water outlet end cover are both mounted on the shell assembly by bolts, the top and bottom of the shell are respectively provided with a diversion air port and a vent hole, the side of the shell is provided with an air inlet and an air outlet, the shell is provided with a diversion cavity on the inner side of the air inlet and the air outlet, the diversion air port and the vent hole are provided on the inner side of the diversion cavity, a rectifier assembly is installed inside the shell on the inner side of the diversion cavity, an air pressure cover is installed on the outer side of the rectifier assembly, a hollow fiber bundle is installed between the rectifier assemblies, a ball bearing is installed between the water inlet end cover and the rectifier assembly, a cleaning frame and a filter plate are installed on the top of the rectifier assembly, an axial pressure rod is installed on the outer side of the rectifier assembly, a moving inclined block is fixedly connected to the inside of the shell, and a reset assembly is installed on the bottom of the moving inclined block;

[0007] Furthermore, the rectifying assembly includes a diverter sleeve, a filter reversing groove is provided at the bottom of the diverter sleeve, a first water hole is provided at the bottom of the filter reversing groove, the bottom of the first water hole is connected to the connecting water groove, a plurality of straight water holes are provided at the bottom of the connecting water groove, a plurality of arc-shaped inclined plates are fixedly connected to the side of the diverter sleeve, a plurality of first air holes and second water holes are provided on the side of the diverter sleeve, an inner ring groove and an outer ring groove are provided inside the diverter sleeve on the inner side of the first air hole, a plurality of straight air holes are provided at the bottom of the inner ring groove and the outer ring groove, the straight air holes are located in the gaps of the straight water holes, and an axial pressure rod is installed on the side of the arc-shaped inclined plate.

[0008] Furthermore, the air pressure cover includes an air pressure sleeve, the outer side of the air pressure sleeve is fixedly connected with a first outer ring and a second outer ring, the outer side of the air pressure sleeve is provided with an air outlet square hole between the first outer ring and the second outer ring, a return spring is installed on the outer side of the air outlet square hole, the side of the second outer ring is fixedly connected with an arc-shaped inclined block, the air pressure cover is installed inside the diversion air port, and the arc-shaped inclined block is an arc-shaped plane structure.

[0009] Furthermore, there are two types of the rectification components, the outer side of the top rectification component is fixedly connected with an arc-shaped inclined plate, the outer side of the bottom rectification component is provided with a second water hole, the first air hole and the second water hole are opened at the position of the diversion cavity, and the installation position of the arc-shaped inclined plate is the same as the installation position of the air pressure cover.

[0010] Furthermore, the cleaning frame includes a sweeping rod and a cleaning outer ring, the sweeping rod is installed on the inner side of the cleaning outer ring, the position of the sweeping rod is the same as the position of the filter hole on the filter plate, a diverter plate is installed at the bottom of the water inlet end cover, the cleaning frame is installed on the outer side of the diverter plate, and a flow rate sensor is installed inside the water inlet end cover, and the flow rate sensor is used to detect the internal flow rate of the liquid.

[0011] Furthermore, the reset assembly includes a reset ring, the top of the reset ring is fixedly connected to a reset rod, a compression spring is installed on the outside of the reset rod, the reset ring is installed on the top of the bottom rectifier assembly, and the compression spring and the reset rod are installed inside the moving inclined block.

[0012] Furthermore, the gas passage and the liquid passage opened inside the diverter sleeve are arranged in layers.

[0013] Furthermore, the axial compression rod includes a telescopic rod and a return spring, and the telescopic rod is hingedly mounted on the outer side of the arc-shaped inclined plate.

[0014] Technical effects and advantages of the present invention:

[0015] The present invention is advantageous in utilizing the increase in the flow rate of pure nitrogen gas by providing a rectifying assembly and an air pressure cover, so that the rotation of the rectifying assembly adjusts the spiral angle of the fiber, thereby increasing the surface area of ​​the hollow fiber, providing a higher gas exchange interface on the outer surface of the fiber, and achieving better permeation of dissolved oxygen, thereby improving the overall deoxygenation effect.

[0016] The present invention is provided with a reset component, which is beneficial for the rectifying component to always maintain a downward trend under the action of the reset component after the bottom rectifying component rises, which is beneficial for keeping the fibers in a tensioned state and avoiding the entanglement, crossing and overlapping of the fibers.

[0017] The present invention is provided with a cleaning frame, which is conducive to utilizing the rotation of the rectifier component to make the sweep rod slide on the filter hole, and the filter residue accumulated on the filter hole is automatically cleaned to the vicinity of the filter hole, completing the cleaning of the filter screen, avoiding impurities accumulation to block the inside of the fiber and affect the penetration effect of dissolved oxygen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a front cross-sectional view of the overall structure of the present invention.

[0020] Figure 3 The appended Figure 2 Partial schematic diagram of structure A in the middle.

[0021] Figure 4 It is a cross-sectional view of the overall structure of the present invention.

[0022] Figure 5 It is a cross-sectional view of the housing component structure of the present invention.

[0023] Figure 6 It is a schematic diagram of the cleaning frame structure of the present invention.

[0024] Figure 7It is a schematic diagram of the structure of the rectifier assembly of the present invention.

[0025] Figure 8 It is a cross-sectional view of the rectifier assembly structure of the present invention.

[0026] Fig. 9 The appended Figure 8 Sectional view of the AA structure.

[0027] Fig.10 The appended Figure 8 Cross-section of the BB structure.

[0028] Fig.11 It is a schematic diagram of the structure of the air pressure cover of the present invention.

[0029] The reference numerals are: 1, shell assembly; 101, shell; 102, air inlet; 103, air outlet; 104, diverter cavity; 105, air release hole; 106, movable inclined block; 107, diverter air port; 2, water inlet end cover; 3, rectifier assembly; 301, diverter sleeve; 302, filter reversing groove; 303, first water hole; 304, first air hole; 305, arc inclined plate; 306, inner ring groove; 307, outer ring groove; 308, straight air hole; 309, connecting water tank; 310 , straight water hole; 311, second water hole; 4, air pressure cover; 401, air pressure sleeve; 402, first outer ring; 403, reset spring; 404, air outlet square hole; 405, second outer ring; 406, arc-shaped inclined block; 5, reset assembly; 501, reset ring; 502, reset rod; 503, re-compression spring; 6, water outlet end cover; 7, ball bearing; 8, cleaning frame; 801, sweeping rod; 802, cleaning outer ring; 9, filter plate; 10, axial pressure rod; 11, hollow fiber bundle. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The self-adjusting membrane deoxygenation device for thermal power generation involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0031] Reference Figure 1-5The present invention provides a self-adjusting membrane deoxygenation device for thermal power generation, comprising a shell assembly 1, the shell assembly 1 comprising a shell 101, the top and bottom of the shell 101 are respectively fixedly connected with a water inlet end cover 2 and a water outlet end cover 6, the water inlet end cover 2 and the water outlet end cover 6 are both mounted on the shell assembly 1 by bolts, the top and bottom of the shell 101 are respectively provided with a diversion air port 107 and a vent hole 105, the side of the shell 101 is provided with an air inlet 102 and an air outlet 103, the shell 101 is provided with a diversion cavity 104 on the inner side of the air inlet 102 and the air outlet 103, the diversion air port 107 and the vent hole 105 are provided inside the diversion cavity 104, and the diversion air port 107 and the vent hole 105 are provided inside the diversion cavity 104. On the side, a rectifier assembly 3 is installed inside the shell 101, located inside the diverter chamber 104, an air pressure cover 4 is installed on the outside of the rectifier assembly 3, a hollow fiber bundle 11 is installed between the rectifier assemblies 3, a ball bearing 7 is installed between the water inlet end cover 2 and the rectifier assembly 3, and the ball bearing 7 provides lubrication and support for the rotation of the rectifier assembly 3. A cleaning frame 8 and a filter plate 9 are installed on the top of the rectifier assembly 3, an axial pressure rod 10 is installed on the outside of the rectifier assembly 3, and a moving inclined block 106 is fixedly connected to the inside of the shell 101. A reset assembly 5 is installed at the bottom of the moving inclined block 106. When the bottom rectifier assembly 3 rises, the reset assembly 5 applies downward pressure to the rectifier assembly 3.

[0032] In this embodiment, it is necessary to specifically explain that the axial pressure rod 10 includes a telescopic rod and a return spring. Referring to the water outlet cover 6 in the figure, the telescopic rod is hingedly mounted on the outer side of the arc-shaped inclined plate 305. When the rectifier assembly 3 rotates due to the rising air pressure, the telescopic rod contracts. When the air pressure decreases, the return spring applies a reverse force to the arc-shaped inclined plate 305 to restore it to its original position.

[0033] The main difference between this embodiment and the prior art is that in this embodiment, the flow rate of the gas is changed to achieve the wastewater filtration and cleaning on the surface of the fiber membrane, and the rotation angle of the hollow fiber is changed to adjust the deoxygenation effect at different flow rates, specifically in the rectifier assembly 3, the air pressure cover 4, and the cleaning frame 8;

[0034] The above structure is the main structure of this embodiment, which solves the problem of insufficient reaction at the corners of the existing deoxygenation device, and at the same time solves the problem of being unable to adapt to different liquid flow rates. It also solves the problem that fiber deoxygenation of wastewater is easily blocked by particulate matter in the wastewater, resulting in reduced deoxygenation effect. The flow rate sensor is an existing structure, and the specific structure and connection method of the sensor are not described in detail in this embodiment.

[0035] Reference Figure 3The reset assembly 5 includes a reset ring 501, a reset rod 502 is fixedly connected to the top of the reset ring 501, a compression spring 503 is installed on the outer side of the reset rod 502, and the reset ring 501 is installed on the top of the bottom rectifier assembly 3. When the rectifier assembly 3 rises, the reset ring 501 applies pressure to the rectifier assembly 3.

[0036] In this embodiment, it is necessary to specifically explain that: the compression spring 503 and the reset rod 502 are installed inside the movable inclined block 106. After the bottom rectifying assembly 3 rises, the rectifying assembly 3 always maintains a downward trend under the action of the reset assembly 5, which is beneficial to keep the fiber in a tensioned state at all times and avoid the entanglement, crossing and overlapping of the fibers.

[0037] Reference Figure 6 The cleaning frame 8 includes a sweep rod 801 and a cleaning outer ring 802. The sweep rod 801 is installed on the inner side of the cleaning outer ring 802. The position of the sweep rod 801 is the same as the position of the filter hole on the filter plate 9. When the rectifier assembly 3 rotates, the filter plate 9 changes its angle following the rectifier assembly 3. At this time, the angle of the sweep rod 801 remains unchanged. The sweep rod 801 slides on the filter hole, and the filter residue accumulated on the filter hole is cleaned to the vicinity of the filter hole. At this time, the cleaning of the filter net is completed.

[0038] In this embodiment, it should be specifically explained that: a diverter plate is installed at the bottom of the water inlet end cover 2, and the cleaning frame 8 is installed on the outside of the diverter plate. The liquid is diverted by the diverter plate and enters the filter plate 9 from the cleaning frame 8 for filtration.

[0039] Reference Figure 7-10 The rectifying assembly 3 includes a flow divider sleeve 301, a filter reversing groove 302 is provided at the bottom of the flow divider sleeve 301, a first water hole 303 is provided at the bottom of the filter reversing groove 302, the bottom of the first water hole 303 is communicated with a connecting water tank 309, a plurality of straight water holes 310 are provided at the bottom of the connecting water tank 309, a plurality of arc-shaped inclined plates 305 are fixedly connected to the side of the flow divider sleeve 301, a plurality of first air holes 304 are provided at the side of the flow divider sleeve 301, and a plurality of first air holes 304 are provided at the side of the flow divider sleeve 301. The second water hole 311, the inner side of the first air hole 304 is provided with an inner annular groove 306 and an outer annular groove 307, the bottom of the inner annular groove 306 and the outer annular groove 307 are provided with a plurality of straight air holes 308, the straight air holes 308 are located in the gap of the straight water hole 310, and an axial pressure rod 10 is installed on the side of the arc-shaped inclined plate 305, and the axial pressure rod 10 and the reset assembly 5 work together to make the rectifier assembly 3 have a tendency to maintain a vertical state.

[0040] In this embodiment, it is necessary to specifically explain that: Figure 6There are two types of rectifying components 3. The outer side of the top rectifying component 3 is fixedly connected with an arc-shaped inclined plate 305. The outer side of the bottom rectifying component 3 is provided with a second water hole 311. The first air hole 304 and the second water hole 311 are provided at the position of the diverter chamber 104. The installation position of the arc-shaped inclined plate 305 is the same as that of the air pressure cover 4. When the gas flow rate increases, the arc-shaped inclined block 406 pushes the arc-shaped inclined plate 305 to rotate the rectifying component 3 as a whole. The rotation of the rectifying component 3 cleans the filter residue at the top while adjusting the spiral angle of the fiber. The surface area of ​​the hollow fiber is increased, and the outer surface of the fiber has A higher gas exchange interface results in a better permeation effect. It needs to be explained again here that a flow rate sensor is installed inside the water inlet end cover 2. The flow rate sensor is used to detect the internal flow rate of the liquid. It is known from the prior art in this field that when the liquid flow rate increases, if the corresponding gas flow rate adjustment is not performed, it will inevitably lead to insufficient removal of dissolved oxygen in the wastewater. After the gas flow rate is increased in the present application, the spiral change of the fiber not only expands the contact area, but also reduces the internal liquid flow rate, thereby increasing the gas flow rate while reducing the liquid flow rate, thereby improving the overall deoxygenation effect.

[0041] Reference Figure 8 and Fig.10 The flow divider 301 has a liquid passage inside. The liquid flows from top to bottom through the filter reversing groove 302, the first water hole 303, the connecting water groove 309 and the straight water hole 310 inside the flow divider 301 and then enters the hollow fiber. Figure 6 From the structure of the middle filter plate 9, it can be seen that after the wastewater liquid enters the device from above, it is dispersed outward under the joint action of the diverter plate and the filter plate 9, and enters the first water hole 303 in the middle after the filtration is completed. It can be seen that the movement of the liquid in the diverter sleeve 301 always maintains an S-shaped dispersion, aggregation and re-dispersion flow process, so that the internal liquid pressure and flow rate of each fiber are the same, avoiding the formation of unresponsive fiber dead corners.

[0042] In this embodiment, it should be specifically explained that the gas passage and liquid passage opened inside the diverter sleeve 301 are arranged in layers, and the outlet of the gas passage is opened at the gap between each fiber, so that the gas is fully in contact with the dissolved oxygen seeping from the fiber.

[0043] Reference Fig.11The air pressure cover 4 includes an air pressure sleeve 401, and the outer side of the air pressure sleeve 401 is fixedly connected with a first outer ring 402 and a second outer ring 405. An air outlet square hole 404 is provided on the outer side of the air pressure sleeve 401 between the first outer ring 402 and the second outer ring 405. A return spring 403 is installed on the outer side of the air outlet square hole 404. An arc-shaped inclined block 406 is fixedly connected to the side of the second outer ring 405. The air pressure cover 4 is installed inside the diverter gas port 107. Pure nitrogen gas enters the interior of the air pressure sleeve 401 from the diverter cavity 104, and then overflows from the air outlet square hole 404 to the outside and enters the interior of the first air hole 304. When the air flow increases, the air pressure inside the diverter cavity 104 increases, and the gas pushes the air pressure cover 4 as a whole to move toward the side of the rectifier assembly 3, so that the opening exposed by the air outlet square hole 404 is enlarged, thereby increasing the air flow rate.

[0044] In this embodiment, it should be specifically explained that the arc-shaped inclined block 406 is an arc-shaped plane structure. When the air pressure cover 4 moves inward, the air outlet square hole 404 increases the air flow rate, and at the same time, the arc-shaped inclined block 406 pushes the arc-shaped inclined plate 305 to rotate the rectifying component 3. The rotation of the rectifying component 3 causes the hollow fiber to change its shape, thereby adjusting the fluid flow rate on the fiber surface and inside, thereby increasing the penetration effect of dissolved oxygen.

[0045] Working principle of the present invention:

[0046] The main problems solved by this embodiment are: utilizing the change in gas flow rate to achieve wastewater filtration and cleaning on the surface of the fiber membrane, and utilizing the change in the rotation angle of the hollow fiber to adjust the deoxygenation effect at different flow rates, thereby solving the problem of insufficient reaction at the corners of the existing deoxygenation device, and solving the problem of being unable to adapt to different liquid flow rates. It also solves the problem that the fiber's deoxygenation of wastewater is easily blocked by particulate matter in the wastewater, resulting in a reduced deoxygenation effect.

[0047] The specific steps are as follows:

[0048] Wastewater enters the interior from the water inlet end cover 2, diffuses to the surroundings under the action of the bottom shunt plate, enters the interior of the rectifier assembly 3 after passing through the filtering action of the filter plate 9, and enters the interior of the hollow fiber after passing through the first water hole 303, the connecting water tank 309 and the straight water hole 310 in sequence. At the same time, pure nitrogen gas enters the interior of the diverter cavity 104 from the air inlet 102, and pushes the air pressure cover 4 installed inside the diverter gas port 107 inwardly under the diversion action of the diverter cavity 104. The gas enters the interior of the first air hole 304 after passing through the air outlet square hole 404. After entering the first air hole 304, the gas passes through the outer ring groove 307 and the straight air hole 308 in sequence to enter the outside of the bottom hollow fiber. At this time, the wastewater inside the hollow fiber penetrates to the outside of the hollow fiber under the action of Henry's law, and due to the hydrophobicity of the hollow fiber membrane, the water phase cannot penetrate to the outside of the membrane hole, thereby forming a fixed gas-liquid two-phase interface on the membrane;

[0049] The dissolved oxygen in the wastewater is carried by the nitrogen and continues to move downward, and then passes through the straight air hole 308 and the second water hole 311 at the bottom and is discharged to the outside through the air outlet 103. The oxygen in the nitrogen is eliminated by the circulation device, and the nitrogen after the oxygen molecules are eliminated is deoxygenated again through the above process to the internal wastewater. After the wastewater is deoxygenated, it is discharged to the outside through the first water hole 303 at the bottom and the water outlet cover 6.

[0050] After the device has been used for a long time, the filtered impurities accumulated on the filter plate 9 continue to increase, affecting the internal deoxygenation effect, and the flow rate of the wastewater is reduced. At this time, the rate at which nitrogen enters from the air inlet 102 is increased. As the flow rate of the gas increases, the air pressure inside the diverter chamber 104 increases, and the gas inside the diverter chamber 104 blows the air pressure cover 4 to move inside the shell 101. The arc-shaped inclined block 406 acts on the arc-shaped inclined plate 305 to push the arc-shaped inclined plate 305 to rotate toward one side of the axial pressure rod 10. The angle of rotation is proportional to the pressure. As the rectifier assembly 3 rotates, this At this time, the angle between the filter hole of the top filter plate 9 and the cleaning outer ring 802 changes, and the cleaning outer ring 802 sweeps from one side of a single filter hole to the other side to clean the filter hole to ensure the stability of the filtering effect. At the same time, as the rotation proceeds, the hollow fiber at the bottom of the bottom rectifying component 3 is rotated by the rotating force. The torque generated by the rotation shortens the distance between the two rectifying components 3, and the hollow fiber forms a spiral state. At this time, the flow rate of the internal fluid is reduced, and the contact time between the gas and the liquid is increased. At this time, the dissolved oxygen in the wastewater can better achieve penetration deoxygenation;

[0051] When the nitrogen gas flow rate decreases, the arc-shaped inclined plate 305 rotates in the opposite direction under the action of the return spring installed on the axial pressure rod 10 and returns to its original position. At this time, the spiral torque of the hollow fiber decreases, and the return spring 503 pushes the reset ring 501 to move downward. The bottom rectifying assembly 3 moves downward under the action of the reset ring 501 and returns to its original position. At this time, the hollow fiber also returns to a straight state.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-adjusting membrane deoxidation device for thermal power generation, comprising a housing assembly (1), characterized in that: The housing assembly (1) comprises a housing (101), the top and bottom of the housing (101) are respectively fixedly connected with a water inlet end cover (2) and a water outlet end cover (6), the water inlet end cover (2) and the water outlet end cover (6) are both mounted on the housing assembly (1) by bolts, the top and bottom of the housing (101) are respectively provided with a diverter port (107) and an air release hole (105), the side of the housing (101) is provided with an air inlet (102) and an air outlet (103), the housing (101) is provided with a diverter cavity (104) on the inner side of the air inlet (102) and the air outlet (103), the diverter port (107) and the air release hole (105) are respectively provided with a diverter cavity (104) on the inner side of the air inlet (102) and the air outlet (103), and ... cavity (104) and the diverter cavity (107) are respectively provided with a diverter cavity (104) on the inner side of the air inlet (102) and the air outlet (103), and the diverter cavity (107) and the air release hole (105) are respectively provided with a diverter cavity (104) on the inner side of the air inlet (102) and the air outlet (103), and the diverter cavity (104) and the diverter cavity (107) are respectively provided with a divert The housing (101) is provided inside the diverter chamber (104), a rectifying assembly (3) is installed inside the diverter chamber (104), an air pressure cover (4) is installed outside the rectifying assembly (3), a hollow fiber bundle (11) is installed between the rectifying assemblies (3), a ball bearing (7) is installed between the water inlet end cover (2) and the rectifying assembly (3), a cleaning frame (8) and a filter plate (9) are installed on the top of the rectifying assembly (3), an axial pressure rod (10) is installed on the outside of the rectifying assembly (3), a movable inclined block (106) is fixedly connected to the inside of the housing (101), and a reset assembly (5) is installed at the bottom of the movable inclined block (106); The rectifying assembly (3) comprises a flow dividing sleeve (301), a filtering reversing groove (302) is provided at the bottom of the flow dividing sleeve (301), a first water hole (303) is provided at the bottom of the filtering reversing groove (302), the bottom of the first water hole (303) is communicated with a connecting water tank (309), a plurality of straight water holes (310) are provided at the bottom of the connecting water tank (309), a plurality of arc-shaped inclined plates (305) are fixedly connected to the side of the flow dividing sleeve (301), and the flow dividing sleeve (301) is provided with a plurality of arc-shaped inclined plates (305). 01) is provided with a plurality of first air holes (304) and a second water hole (311), an inner ring groove (306) and an outer ring groove (307) are provided inside the flow dividing sleeve (301) and located inside the first air hole (304), a plurality of straight air holes (308) are provided at the bottom of the inner ring groove (306) and the outer ring groove (307), and the straight air holes (308) are located at the gap of the straight water hole (310), and an axial compression rod (10) is installed on the side of the arc-shaped inclined plate (305); The air pressure cover (4) comprises an air pressure sleeve (401), the outer side of the air pressure sleeve (401) is fixedly connected with a first outer ring (402) and a second outer ring (405), the outer side of the air pressure sleeve (401) is provided with an air outlet square hole (404) located between the first outer ring (402) and the second outer ring (405), a return spring (403) is installed on the outer side of the air outlet square hole (404), the side of the second outer ring (405) is fixedly connected with an arc-shaped inclined block (406), the air pressure cover (4) is installed inside the diverter air port (107), and the arc-shaped inclined block (406) is an arc-shaped plane structure; There are two types of the rectifying assembly (3), the outer side of the top rectifying assembly (3) is fixedly connected with an arc-shaped inclined plate (305), the outer side of the bottom rectifying assembly (3) is provided with a second water hole (311), the first air hole (304) and the second water hole (311) are provided at the position of the diverter cavity (104), and the installation position of the arc-shaped inclined plate (305) is the same as the installation position of the air pressure cover (4); Pure nitrogen gas enters the interior of the diversion chamber (104) from the gas inlet (102), and pushes the gas pressure cover (4) installed inside the diversion gas port (107) inward under the diversion effect of the diversion chamber (104).

2. A self-adjusting membrane deoxidation device for thermal power generation according to claim 1, characterized in that: The cleaning frame (8) comprises a sweeping rod (801) and a cleaning outer ring (802); the sweeping rod (801) is mounted on the inner side of the cleaning outer ring (802); the position of the sweeping rod (801) is the same as the position of the filter holes on the filter plate (9); a diverter plate is mounted on the bottom of the water inlet end cover (2); the cleaning frame (8) is mounted on the outer side of the diverter plate; a flow rate sensor is mounted inside the water inlet end cover (2); the flow rate sensor is used to detect the internal flow rate of the liquid.

3. A self-adjusting membrane deoxidation device for thermal power generation according to claim 1, characterized in that: The reset assembly (5) comprises a reset ring (501), the top of the reset ring (501) is fixedly connected to a reset rod (502), the outer side of the reset rod (502) is installed with a re-compression spring (503), the reset ring (501) is installed on the top of the bottom rectifying assembly (3), and the re-compression spring (503) and the reset rod (502) are installed inside the movable inclined block (106).

4. A self-adjusting membrane deoxidation device for thermal power generation according to claim 2, characterized in that: The gas passage and the liquid passage opened inside the diverter sleeve (301) are arranged in layers.

5. A self-adjusting membrane deoxidation device for thermal power generation according to claim 1, characterized in that: The axial compression rod (10) comprises a telescopic rod and a return spring, and the telescopic rod is hingedly mounted on the outside of the arc-shaped inclined plate (305).

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