Flue gas water recovery device for boiler of thermal power plant

Abstract

The invention relates to the technical field of flue gas water recycling of boilers of thermal power plants, provides a flue gas water recycling device for boilers of thermal power plants, and aims to solve the problem that the reaction rate is affected by carbon dioxide dissipation caused by opening of a tank opening in the prior art. The device comprises a mounting plate, a steam-water separator, a condenser, a treatment tank, a recovery tank and the like, wherein a feed pipe for sealed control is arranged on the treatment tank. The motor drives the two-way threaded rod to drive the sealing plate to move, the sealing assembly and the linkage assembly are linked to open or close the feeding pipe, sealing of the treatment tank in the limestone adding process is achieved, loss of carbon dioxide and entering of oxygen are reduced, the reaction efficiency is improved, and the production cost is reduced. Meanwhile, the effectiveness and the stability of flue gas water recovery treatment are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas water recovery and utilization of boilers in thermal power plants, and in particular to a flue gas water recovery device for boilers in thermal power plants. Background Art

[0002] The combustion of coal in thermal power plants will produce some flue gas products that are not conducive to the environment, mainly water vapor, carbon dioxide, nitrogen and sulfide, among which the content of water vapor accounts for 5% to 11% of the total flue gas. The flue gas of thermal power plants contains a large amount of low-grade waste heat resources and water vapor.

[0003] After consulting the literature, it is known that the prior art disclosed in the patent publication number CN218115186U includes a base, a boiler tank body and a recovery tank, wherein the boiler tank body and the recovery tank are respectively fixedly connected to the outer top of the base, a connecting pipe is provided on the top of the boiler tank body, one end of the connecting pipe is connected to the interior of the boiler tank body, and the other end of the connecting pipe is connected to the interior of the recovery tank, a steam-water separator is provided in the middle of the connecting pipe, the drain port of the steam-water separator is connected to a water outlet pipe, one end of the water outlet pipe is connected to the interior of the recovery tank, a drain valve is provided at one end of the water outlet pipe close to the drain port, and a sewage discharge assembly is provided on the top of the recovery tank. Quicklime is added to the recovery tank through the inlet, and the quicklime reacts with the flue gas condensate to generate a larger precipitate, and then the condensate is filtered and precipitated using a filter plate.

[0004] In actual use of the prior art, when workers add limestone into the tank, since the tank mouth is in an open state, a large amount of carbon dioxide generated by the limestone inside will escape, thereby affecting the reaction rate. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a flue gas water recovery device for a thermal power plant boiler, which solves the problem that a large amount of carbon dioxide generated by limestone inside the device will escape due to the tank mouth being in an open state, thereby affecting the reaction rate.

[0006] In order to solve the above technical problems, the specific technical solutions of the present invention are as follows:

[0007] The present invention provides a flue gas water recovery device for a thermal power plant boiler, comprising a mounting plate, wherein a steam-water separator, a condenser, a processing tank and a recovery tank are arranged on the upper surface of the mounting plate, an air outlet pipe and a drain pipe of the steam-water separator are connected to the condenser, the condenser is connected to the processing tank through the drain pipe, the processing tank is connected to the recovery tank through the drain pipe, a feed pipe communicating with the inside of the processing tank is fixedly connected to the upper surface of the processing tank, and a material guide box is fixedly connected to the upper surface of the feed pipe;

[0008] The upper surface of the material guide box is fixedly connected with a feeding box, a cavity is opened inside the top plate of the processing tank, a linkage assembly and a sealing assembly are arranged inside the cavity, two sealing plates extending outside are slidably connected inside the feeding box, a motor is fixedly connected to the outer surface of the feeding box, the output shaft of the motor rotates and penetrates into the inside of the feeding box, a guide groove is opened on the inner wall of the feeding box, and two guide blocks are slidably connected inside the guide groove;

[0009] The two guide blocks are fixedly connected to the two sealing plates respectively, a bidirectional threaded rod is rotatably connected inside the guide groove, the bidirectional threaded rod is fixedly connected to the output shaft of the motor, the two guide blocks are respectively threadedly sleeved on two opposite threads of the bidirectional threaded rod, and a feeding port is arranged on the top of the feeding box.

[0010] Furthermore, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein the sealing assembly includes a connecting shaft, which is rotatably connected to the inside of a cavity, and the lower end of the connecting shaft rotates and penetrates into the inside of a treatment tank, and the lower end of the connecting shaft is fixedly connected to a connecting rod, and the end of the connecting rod away from the connecting shaft is fixedly connected to a semicircular sealing plate, and the upper surface of the semicircular sealing plate is in contact with the top wall of the treatment tank, and the end of the connecting shaft located inside the cavity is fixedly connected to a first gear, and a first movable plate is arranged between the two first gears, and first tooth grooves are provided on both side surfaces of the first movable plate, and the first tooth grooves are meshed with the first gear.

[0011] Furthermore, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein the top wall of the treatment tank is provided with an annular groove, the upper surface of the semicircular sealing plate is fixedly connected to a limit rod, and the limit rod and the annular groove are slidably connected.

[0012] Furthermore, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein the linkage assembly includes a rotating shaft rotatably connected to the inside of a cavity, a second gear is fixedly sleeved on the outer surface of the rotating shaft, a second movable plate is arranged on the upper side of the second gear, and second tooth grooves are provided on the opposite side surfaces of the first movable plate and the second movable plate, and the second tooth grooves are meshed with teeth on the surface of the second gear.

[0013] Furthermore, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a fixing rod is fixedly connected to the lower surface of the sealing plate on the right side, a sliding groove connected to the cavity is opened on the upper surface of the treatment tank, the fixing rod is slidably connected to the inside of the sliding groove, and the fixing rod is fixedly connected to the second movable plate.

[0014] Furthermore, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a stirring assembly is provided on the upper surface of the treatment tank, the stirring assembly includes a second motor fixedly connected to the upper surface of the treatment tank, the output shaft of the second motor rotates and penetrates into the interior of the treatment tank, the interior of the treatment tank is rotatably connected with a first stirring rod, the first stirring rod and the output shaft of the second motor are both fixedly sleeved with a third gear, the two third gears are meshed and connected, the outer surface of the first stirring rod is fixedly connected to the second stirring rod, the outer surface of the second stirring rod is fixedly connected to the first scraper, and the first scraper is in contact with the inner wall of the treatment tank.

[0015] Furthermore, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a water tank is fixedly connected to the upper surface of the treatment tank, a pump body is arranged inside the water tank, a water inlet is arranged on the rear side of the water tank, the upper end of the first stirring rod rotates to pass through the treatment tank, a water passage chamber is provided inside the first stirring rod, a water passage hose is provided between the water tank and the first stirring rod, and the water passage hose is connected to the first stirring rod through a rotating flange, a water outlet pipe is fixedly connected to the outer surface of the first stirring rod, and a water outlet channel connected to the water passage chamber is provided inside the water outlet pipe.

[0016] Furthermore, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a collecting assembly is provided at the lower portion of the processing tank, the collecting assembly includes a collecting box embedded in the bottom of the processing tank, a sealing cover is slidably connected to the upper surface of the collecting box, the sealing cover is flush with the bottom wall of the processing tank, the interior of the collecting box is slidably connected to a collecting bucket extending to the outside, the outer surface of the first stirring rod is fixedly connected to a second scraper, and the second scraper is fitted to the bottom wall of the processing tank.

[0017] Beneficial effects of the present invention:

[0018] The present invention drives the rotation of the bidirectional threaded rod 16 by starting the motor 17, and drives the guide block 15 to slide inside the guide groove 14 through the rotation of the bidirectional threaded rod 16, thereby driving the two sealing plates 12 to move. At this time, the sealing plate 12 will drive the linkage component 11 to operate, and at this time, the linkage component 11 will drive the sealing component 9 to move. At this time, in the process of the two sealing plates 12 moving to both sides, the sealing component will cancel the seal on the feed pipe 6, and the addition of limestone can be achieved at this time. After the addition is completed, the sealing plate 12 and the sealing component 9 are closed, thereby achieving the sealing of the processing tank 4. Through the arrangement of the sealing plate 12, the sealing component 9 and the linkage component 11, the loss of carbon dioxide is reduced, the oxygen entry content is reduced, and the efficiency of adding limestone is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on the drawings without paying any creative labor.

[0020] Figure 1 A schematic structural diagram of a flue gas water recovery device for a thermal power plant boiler provided in an embodiment of the present invention.

[0021] Figure 2 A schematic diagram of the partial cross-sectional structure of a flue gas water recovery device for a thermal power plant boiler provided in an embodiment of the present invention.

[0022] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the structure at A in the middle.

[0023] Figure 4 This is a schematic diagram of a boiler flue gas water recovery device for a thermal power plant provided by an embodiment of the present invention with a charging box in an open state.

[0024] Figure 5 A schematic diagram of the cross-sectional structure of a treatment tank of a flue gas water recovery device for a thermal power plant boiler provided in an embodiment of the present invention.

[0025] Figure 6 A schematic cross-sectional structure diagram of a stirring assembly of a flue gas water recovery device for a thermal power plant boiler provided in an embodiment of the present invention.

[0026] Figure markings: 1-mounting plate, 2-steam-water separator, 3-condenser, 4-treatment tank, 5-recovery tank, 6-feed pipe, 7-material guide box, 8-feeding box, 9 sealing assembly, 10-cavity, 11-linkage assembly, 12-sealing plate, 13-fixing rod, 14-guide groove, 15-guide block, 16-bidirectional threaded rod, 17-motor, 18-annular groove, 19-limiting rod, 20-stirring assembly, 21-water tank, 22-water chamber, 23-water outlet pipe, 24-collecting assembly, 25-second motor, 26-third gear, 27-first stirring rod, 28-second stirring rod, 29-first scraper, 30-water outlet channel, 31-collecting box, 32-sealing cover, 33-second scraper, 34-collecting bucket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The technical solutions provided by the embodiments of the present invention are described in detail below in conjunction with the drawings.

[0028] In order to better understand the purpose of the present invention, the present invention is described in further detail below.

[0029] The present invention provides a flue gas water recovery device for a thermal power plant boiler, comprising a mounting plate 1, wherein a steam-water separator 2, a condenser 3, a processing tank 4 and a recovery tank 5 are arranged on the upper surface of the mounting plate 1, an outlet pipe and a drain pipe of the steam-water separator 2 are connected to the condenser 3, the condenser 3 is connected to the processing tank 4 through the drain pipe, the processing tank 4 is connected to the recovery tank 5 through the drain pipe, a feed pipe 6 communicating with the inside of the processing tank 4 is fixedly connected to the upper surface of the processing tank 4, and a material guide box 7 is fixedly connected to the upper surface of the feed pipe 6;

[0030] Mounting plate 1: As the supporting base of the entire flue gas water recovery device, it helps other components to be stably installed and fixed. The upper surface of the mounting plate 1 is equipped with a steam-water separator 2, a condenser 3, a treatment tank 4 and a recovery tank 5.

[0031] Steam-water separator 2: Separates water vapor and other gases from boiler flue gas. The gas outlet pipe and drain pipe are connected to the condenser 3 to guide the separated gas and water into the condenser.

[0032] Condenser 3: condenses the water vapor discharged from the steam-water separator 2 into water. It is connected to the treatment tank 4 through a drain pipe and the condensed water is sent to the treatment tank.

[0033] Treatment tank 4: treats the condensed water, such as adding limestone for reaction to remove impurities. It is connected to the recovery tank 5 through a drainage pipe to send the treated water into the recovery tank; a feed pipe 6 is fixedly connected to the upper surface for adding treatment agents such as limestone.

[0034] Recovery tank 5: stores the treated water for recycling in the thermal power plant. It is connected to the treatment tank 4 through a drainage pipe to receive the treated water.

[0035] Feed pipe 6: introduces limestone and other treatment agents into the treatment tank 4. A material guide box 7 is fixedly connected to the upper surface, and the material guide box is further connected to the feed box 8 to form a complete feed channel.

[0036] The material guide box 7 is a transition structure between the feed pipe 6 and the feeding box 8, which guides the treatment agent to smoothly enter the treatment tank. The feeding box 8 is fixedly connected to the upper surface.

[0037] The connection and interaction between the various structural technical features improve the efficient operation of the flue gas water recovery device. The steam-water separator separates the water vapor in the boiler flue gas, the condenser condenses it into water, the treatment tank treats the condensed water to remove impurities, and finally the treated water is stored in the recovery tank for recycling. The feeding system composed of the feed pipe, the guide box and the feeding box improves the smooth entry of the treatment agent into the treatment tank, while maintaining the sealing of the treatment tank during the feeding process to prevent gas escape from affecting the reaction rate.

[0038] A feeding box 8 is fixedly connected to the upper surface of the guide box 7, a cavity 10 is provided inside the top plate of the processing tank 4, a linkage assembly 11 and a sealing assembly 9 are provided inside the cavity 10, two sealing plates 12 extending outside are slidably connected inside the feeding box 8, a motor 17 is fixedly connected to the outer surface of the feeding box 8, the output shaft of the motor 17 rotates and penetrates into the inside of the feeding box 8, a guide groove 14 is provided on the inner wall of the feeding box 8, and two guide blocks 15 are slidably connected inside the guide groove 14;

[0039] In the boiler flue gas water recovery device of the thermal power plant, a feed box 8 is fixedly connected to the upper surface of the guide box 7. This design is mainly for the convenience of adding treatment agents such as limestone to the treatment tank 4. A cavity 10 is designed inside the top plate of the treatment tank 4, and a linkage component 11 and a sealing component 9 are cleverly arranged inside the cavity 10.

[0040] The internal structure of the feeding box 8 is quite exquisite, and it is slidably connected with two sealing plates 12 that can extend outward. The main function of the two sealing plates 12 is to control the opening and closing of the feeding port through their movement when adding the treatment agent, so as to maintain the sealing of the treatment tank 4 during the addition process and prevent the gas generated during the treatment process from leaking out.

[0041] In order to drive the movement of the two sealing plates 12, a motor 17 is specially fixedly connected to the outer surface of the charging box 8. The output shaft of the motor 17 can rotate and penetrate into the inside of the charging box 8, which is the power source for driving the sealing plates 12 to move.

[0042] In addition, the inner wall of the feeding box 8 is designed with guide grooves 14, and two guide blocks 15 are slidably connected inside these guide grooves 14. The two guide blocks 15 are fixedly connected to the two sealing plates 12 respectively, and the purpose of doing so is to ensure that the sealing plates 12 can remain stable during the movement and move according to a predetermined trajectory. When the motor 17 is started and drives the output shaft to rotate, through a series of mechanical transmissions, the two sealing plates 12 can eventually move simultaneously and synchronously, thereby achieving the purpose of opening or closing the feeding port.

[0043] The present invention not only improves the working efficiency of the flue gas water recovery device of the thermal power plant boiler, but also ensures that the gas inside the treatment tank 4 will not leak out and cause environmental pollution during the process of adding the treatment agent. In general, this is a design solution that is both practical and environmentally friendly.

[0044] The two guide blocks 15 are fixedly connected to the two sealing plates 12 respectively, and a bidirectional threaded rod 16 is rotatably connected inside the guide groove 14. The bidirectional threaded rod 16 is fixedly connected to the output shaft of the motor 17. The two guide blocks 15 are respectively threadedly sleeved on two opposite threads of the bidirectional threaded rod 16, and a feeding port is provided on the top of the feeding box 8.

[0045] In the above-mentioned flue gas water recovery device for a thermal power plant, the two guide blocks 15 play a key role, and they are respectively fixedly connected to the two sealing plates 12. This fixed connection mode improves that when the guide block 15 moves in the guide groove 14, it can drive the sealing plate 12 to move accordingly.

[0046] A bidirectional threaded rod 16 is rotatably connected inside the guide groove 14, which is the core component for realizing synchronous and reverse movement of the sealing plate 12. The two ends of the bidirectional threaded rod 16 have threads of different rotation directions, which correspond to the two guide blocks 15 respectively. When the bidirectional threaded rod 16 rotates, due to the effect of the threads, the two guide blocks 15 will move in the guide groove 14 in opposite directions.

[0047] The bidirectional threaded rod 16 is fixedly connected to the output shaft of the motor 17, which means that the motor 17 is the power source for driving the bidirectional threaded rod 16 to rotate. When the motor 17 is started, its output shaft drives the bidirectional threaded rod 16 to rotate, and then drives the two guide blocks 15 to move in the guide groove 14 through the thread transmission.

[0048] Since the two guide blocks 15 are respectively threadedly sleeved on the two opposite threads of the bidirectional threaded rod 16 and are fixedly connected to the two sealing plates 12, when the bidirectional threaded rod 16 rotates, the two sealing plates 12 will move synchronously but in opposite directions. This movement mode improves the performance of the treatment tank 4 by enabling the two sealing plates 12 to move outward at the same time to open the feeding port when the treatment agent needs to be added; and when the addition is completed, the two sealing plates 12 can move inward at the same time to close the feeding port, thereby maintaining the sealing of the treatment tank 4.

[0049] A feeding port is provided on the top of the feeding box 8 for conveniently adding the treatment agent to the treatment tank 4. During the adding process, by controlling the start and stop of the motor 17, the opening and closing of the feeding port can be accurately controlled, thereby improving the working efficiency and sealing performance of the entire recovery device.

[0050] Specifically, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein the sealing assembly 9 includes a connecting shaft 903, which is rotatably connected to the inside of a cavity 10, and the lower end of the connecting shaft 903 is rotatably penetrated into the inside of a treatment tank 4, and the lower end of the connecting shaft 903 is fixedly connected to a connecting rod 902, and the end of the connecting rod 902 away from the connecting shaft 903 is fixedly connected to a semicircular sealing plate 901, and the upper surface of the semicircular sealing plate 901 is in contact with the top wall of the treatment tank 4, and the end of the connecting shaft 903 located inside the cavity 10 is fixedly connected to a first gear 904, and a first movable plate 905 is arranged between the two first gears 904, and first tooth grooves 906 are provided on both side surfaces of the first movable plate 905, and the first tooth grooves 906 are meshed with the first gear 904.

[0051] In the boiler flue gas water recovery device of the thermal power plant, the sealing assembly 9 is a key design, which is mainly composed of a connecting shaft 903, a connecting rod 902, a semicircular sealing plate 901, a first gear 904 and a first moving plate 905.

[0052] The connecting shaft 903 is one of the core components of the sealing assembly 9, which is rotatably connected to the inside of the cavity 10, and its lower end is rotatably penetrated into the inside of the processing tank 4. The present invention enables the connecting shaft 903 to rotate freely between the cavity 10 and the processing tank 4, thereby driving the components connected thereto to move.

[0053] The connecting rod 902 is fixedly connected to the lower end of the connecting shaft 903, and it plays the role of connecting and transmitting power. The end of the connecting rod 902 away from the connecting shaft 903 is fixedly connected to a semicircular sealing plate 901, and the upper surface of the semicircular sealing plate 901 is tightly fitted with the top wall of the processing tank 4, thereby achieving sealing of the top of the processing tank 4.

[0054] When the seal needs to be opened or closed, the connecting shaft 903 rotates. A first gear 904 is fixedly connected to one end of the connecting shaft 903 located inside the cavity 10, and the first gear 904 meshes with the first tooth grooves 906 on the two first movable plates 905. When the connecting shaft 903 rotates, the first gear 904 drives the first movable plates 905 to move.

[0055] The first movable plate 905 is provided with first tooth grooves 906 on both sides of the surface, and these tooth grooves mesh with the teeth of the first gear 904, thereby realizing the power transmission between the gear and the movable plate. When the first movable plate 905 moves, it drives the parts connected thereto (such as the semicircular sealing plate 901) to move accordingly, thereby realizing the opening or closing of the seal.

[0056] In general, the sealing component 9 realizes the sealing and opening functions of the top of the processing tank 4 through a clever design. When the processing agent needs to be added, the sealing component 9 can be opened to allow the processing agent to enter the processing tank 4; and when the addition is completed, the sealing component 9 can be quickly closed to maintain the sealing of the processing tank 4 and prevent the internal gas from leaking out. The present invention not only improves the working efficiency of the recovery device, but also ensures its environmental performance.

[0057] Specifically, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein the top wall of the treatment tank 4 is provided with an annular groove 18, the upper surface of the semicircular sealing plate 901 is fixedly connected with a limiting rod 19, and the limiting rod 19 and the annular groove 18 are slidably connected.

[0058] In the boiler flue gas water recovery device of the thermal power plant, an annular groove 18 is designed on the top wall of the processing tank 4, and the annular groove 18 forms a sliding connection with the limit rod 19 fixedly connected to the upper surface of the semicircular sealing plate 901.

[0059] First, the present invention improves the stability and accuracy of the semicircular sealing plate 901 during movement. When the semicircular sealing plate 901 needs to be opened or closed, the limit rod 19 slides in the annular groove 18. This sliding connection limits the movement trajectory of the semicircular sealing plate 901, so that it can only move along a predetermined path, thereby avoiding the situation of poor sealing or damage to the equipment due to improper movement.

[0060] Secondly, the sliding connection between the limit rod 19 and the annular groove 18 also plays a certain guiding role. During the movement of the semicircular sealing plate 901, the limit rod 19 will slide along the edge of the annular groove 18. This guiding effect enables the semicircular sealing plate 901 to be opened or closed smoothly, reducing the noise and wear caused by shaking or deviation.

[0061] Finally, the present invention also enhances the sealing performance of the processing tank 4. When the semicircular sealing plate 901 is tightly fitted on the top wall of the processing tank 4, the limiting rod 19 will be completely embedded in the annular groove 18, forming an additional sealing barrier. This can not only prevent the gas or liquid inside the processing tank 4 from leaking out, but also prevent the external air or impurities from entering the processing tank 4, thereby ensuring the purity and stability of the internal environment of the processing tank 4.

[0062] In summary, the sliding connection formed by the annular groove 18 on the top wall of the processing tank 4 and the limiting rod 19 on the semicircular sealing plate 901 is an important design detail in the present invention, which plays a key role in improving the stability, accuracy and sealing performance of the equipment.

[0063] Specifically, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein the linkage assembly 11 includes a rotating shaft 1101 rotatably connected to the inside of a cavity 10, a second gear 1102 is fixedly sleeved on the outer surface of the rotating shaft 1101, a second movable plate 1103 is arranged on the upper side of the second gear 1102, and second tooth grooves 1104 are provided on the opposite side surfaces of the first movable plate 905 and the second movable plate 1103, and the second tooth grooves 1104 are meshed with teeth on the surface of the second gear 1102.

[0064] In the above-mentioned flue gas water recovery device of the thermal power plant boiler, the linkage assembly 11 plays a key role of a bridge and power transmission. It is mainly composed of a rotating shaft 1101 rotatably connected to the inside of the cavity 10, a second gear 1102 fixedly sleeved on the outer surface of the rotating shaft 1101, and a second moving plate 1103.

[0065] The rotating shaft 1101 is the core component of the linkage assembly 11, and it can rotate freely inside the cavity 10. The rotation of the rotating shaft 1101 is driven by other components (such as a motor or a transmission mechanism), and the specific driving method varies according to the design of the overall device.

[0066] The second gear 1102 is fixedly sleeved on the outer surface of the rotating shaft 1101, and meshes with the second tooth grooves 1104 on the first moving plate 905 and the second moving plate 1103. When the rotating shaft 1101 rotates, the second gear 1102 rotates accordingly, and drives the first moving plate 905 and the second moving plate 1103 to move through the meshing action of the teeth and the second tooth grooves 1104.

[0067] The first moving plate 905 and the second moving plate 1103 are key transmission components in the linkage assembly 11. The surfaces on the opposite sides of the two moving plates are provided with second tooth grooves 1104, which are tightly meshed with the teeth of the second gear 1102. When the second gear 1102 rotates, it can simultaneously drive the first moving plate 905 and the second moving plate 1103 to move through the meshing action of the teeth and the tooth grooves. The present invention realizes the synchronous transmission and distribution of power.

[0068] The working principle of the linkage assembly 11 can be summarized as follows: when an external driving force acts on the rotating shaft 1101, the rotating shaft 1101 drives the second gear 1102 to rotate. The rotation of the second gear 1102 drives the first moving plate 905 and the second moving plate 1103 to move synchronously through the meshing action of the teeth and the second tooth grooves 1104. This movement can further drive the sealing assembly 9 connected thereto to move, thereby realizing the sealing and opening functions of the top of the processing tank 4.

[0069] In general, the linkage assembly 11 realizes the power transmission and distribution functions through ingenious design, and plays a vital role in the flue gas water recovery device of the boiler of the thermal power plant.

[0070] Specifically, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a fixing rod 13 is fixedly connected to the lower surface of the sealing plate 12 on the right side, a sliding groove 1301 connected to the cavity 10 is opened on the upper surface of the treatment tank 4, the fixing rod 13 is slidably connected inside the sliding groove 1301, and the fixing rod 13 is fixedly connected to the second movable plate 1103.

[0071] In the above-mentioned flue gas water recovery device for a thermal power plant, a fixing rod 13 is fixedly connected to the lower surface of the right sealing plate 12. This design detail plays an important role in the operation of the device. At the same time, a sliding groove 1301 connected to the cavity 10 is provided on the upper surface of the processing tank 4, and the fixing rod 13 is slidably connected to the inside of the sliding groove 1301. More importantly, the fixing rod 13 is also fixedly connected to the second movable plate 1103.

[0072] Stable transmission: When the sealing plate 12 moves (for example, when adding limestone, the sealing plate needs to be opened to allow the limestone to fall into the processing tank 4), the fixed rod 13 will slide in the sliding groove 1301. Since the fixed rod 13 is connected to the second movable plate 1103, this sliding will drive the second movable plate 1103 to move together. The present invention improves the stable transmission of power, so that the movement of the sealing plate 12 can be smoothly converted into the movement of the second movable plate 1103, and then affect the action of the sealing component 9 through the linkage component 11.

[0073] Synchronous movement: Due to the fixed connection between the fixed rod 13 and the second movable plate 1103, when the sealing plate 12 is opened or closed, the second movable plate 1103 will move synchronously. This synchronous movement is the key to the lifting and sealing assembly 9 being able to accurately and timely open or close the top of the processing tank 4. It avoids problems such as poor sealing or equipment damage caused by asynchronous movement of components.

[0074] Compact structure: By designing the fixing rod 13 to be slidably connected in the sliding groove 1301 and connected to the second movable plate 1103, the present invention achieves compact structure while maintaining the functionality of the device. This compact design helps to reduce the overall volume and weight of the device, reduce manufacturing costs, and improve the reliability and durability of the device.

[0075] In summary, the fixing rod 13 fixed on the lower surface of the right sealing plate 12, the sliding groove 1301 on the upper surface of the processing tank 4, and the fixed connection between the fixing rod 13 and the second movable plate 1103 together constitute an important and ingenious design detail in the present invention. It not only improves the stable operation and synchronous movement of the device, but also achieves the compactness and efficiency of the structure.

[0076] Specifically, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a stirring assembly 20 is provided on the upper surface of the treatment tank 4, and the stirring assembly 20 includes a second motor 2001 fixedly connected to the upper surface of the treatment tank 4, and the output shaft of the second motor 2001 rotates and penetrates into the interior of the treatment tank 4, and the interior of the treatment tank 4 is rotatably connected with a first stirring rod 2003, and the first stirring rod 2003 and the output shaft of the second motor 2001 are both fixedly sleeved with a third gear 2002, and the two third gears 2002 are meshed and connected, and the outer surface of the first stirring rod 2003 is fixedly connected to the second stirring rod 2004, and the outer surface of the second stirring rod 2004 is fixedly connected to the first scraper 2005, and the first scraper 2005 is in contact with the inner wall of the treatment tank 4.

[0077] In the above-mentioned flue gas water recovery device for a thermal power plant boiler, a stirring assembly 20 is provided on the upper surface of the treatment tank 4, which plays a vital role, especially when the flue gas condensate water is treated inside the treatment tank 4. The specific structure and working principle of the stirring assembly 20 will be described in detail below.

[0078] The stirring assembly 20 mainly includes components such as a second motor 2001 , a first stirring rod 2003 , a second stirring rod 2004 , and a first scraper 2005 .

[0079] The second motor 2001 is the power source of the stirring assembly 20 and is fixedly connected to the upper surface of the processing tank 4. The output shaft of the second motor 2001 rotates and penetrates into the interior of the processing tank 4 to provide the necessary rotational power for the stirring process.

[0080] The first stirring rod 2003 is rotatably connected to the inside of the processing tank 4 and is the main stirring component of the stirring assembly 20. In order to transmit power, the first stirring rod 2003 and the output shaft of the second motor 2001 are both fixedly sleeved with a third gear 2002, and the two third gears 2002 are meshed and connected. In this way, when the second motor 2001 is started, the rotation of its output shaft will be transmitted to the first stirring rod 2003 through the meshed third gear 2002, causing it to start rotating.

[0081] The second stirring rod 2004 is fixedly connected to the outer surface of the first stirring rod 2003 and rotates with the rotation of the first stirring rod 2003. The second stirring rod 2004 increases the stirring coverage area and stirring intensity, which helps to mix the substances inside the treatment tank 4 more fully.

[0082] The first scraper 2005 is fixedly connected to the outer surface of the second stirring rod 2004, and its design enables the first scraper 2005 to fit closely to the inner wall of the processing tank 4. This design cleverly solves the problem of substances easily adhering to the inner wall of the processing tank 4. During the stirring process, the first scraper 2005 will scrape the inner wall of the processing tank 4 as the second stirring rod 2004 rotates, thereby ensuring that all substances can be fully stirred and avoiding uneven stirring caused by adhesion.

[0083] The working principle of the stirring assembly 20 is relatively simple and efficient: when the material inside the treatment tank 4 needs to be stirred, the second motor 2001 is started. The output shaft of the second motor 2001 starts to rotate, and transmits power to the first stirring rod 2003 through the meshed third gear 2002. The first stirring rod 2003 rotates accordingly, driving the second stirring rod 2004 and the first scraper 2005 to rotate together. In this way, the material inside the treatment tank 4 is fully stirred, and at the same time, the first scraper 2005 scrapes the inner wall to lift the material without adhesion.

[0084] In general, the stirring assembly 20 provides strong support for the flue gas condensate treatment process in the flue gas water recovery device of the boiler of the thermal power plant through its sophisticated design and efficient working principle, thereby improving the efficiency and effect of the treatment.

[0085] Specifically, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a water tank 21 is fixedly connected to the upper surface of the treatment tank 4, a pump body is arranged inside the water tank 21, a water inlet is arranged on the rear side of the water tank 21, the upper end of the first stirring rod 2003 rotates to pass through the treatment tank 4, a water passage chamber 22 is provided inside the first stirring rod 2003, a water passage hose is provided between the water tank 21 and the first stirring rod 2003, and the water passage hose is connected to the first stirring rod 2003 through a rotating flange, a water outlet pipe 23 is fixedly connected to the outer surface of the first stirring rod 2003, and a water outlet channel 2301 connected to the water passage chamber 22 is provided inside the water outlet pipe 23.

[0086] In the above-mentioned thermal power plant boiler flue gas water recovery device, a unique water tank 21 system is designed on the upper surface of the treatment tank 4, which plays a key role in the operation of the device. The following is a detailed analysis of this water tank 21 system:

[0087] The basic structure of the water tank 21 is as follows: the water tank 21 is fixedly connected to the upper surface of the treatment tank 4, and a pump body is arranged inside the water tank 21 to provide power for the water flow. A water inlet is also arranged at the rear side of the water tank 21 to facilitate the replenishment of water into the water tank.

[0088] Water-passing chamber 22 and water-passing hose: The first stirring rod 2003, as the core component of the stirring assembly 20, has its upper end rotated to pass through the processing tank 4, and a water-passing chamber 22 is cleverly opened inside it. In order to connect the water tank 21 and the water-passing chamber 22 inside the first stirring rod 2003, a water-passing hose is specially provided. This hose is connected to the first stirring rod 2003 through a rotating flange, which improves the stability and sealing of the connection, and allows the first stirring rod 2003 to rotate without affecting the connection of the hose.

[0089] Water outlet pipe 23 and water outlet channel 2301: A water outlet pipe 23 is fixedly connected to the outer surface of the first stirring rod 2003. The interior of the water outlet pipe 23 is provided with a water outlet channel 2301 connected to the water passage chamber 22. Thus, when the pump body in the water tank 21 is started, water will enter the water tank through the water inlet, and then be pressurized by the pump body and sent into the water passage hose, then pass through the water passage chamber 22, and finally flow out through the water outlet channel 2301 and the water outlet pipe 23, directly spraying or flushing the substances in the treatment tank 4.

[0090] The design of the water tank 21 system provides additional water treatment capacity for the flue gas water recovery device of the thermal power plant boiler. During the stirring and reaction process inside the treatment tank 4, an appropriate amount of water can be added to the tank through the water tank 21 system to adjust the concentration of the substance, promote the reaction, or perform flushing operations. Especially when the device is used to treat flue gas condensate containing solid particles such as smoke, ash, etc., this water tank 21 system is particularly important. It can help improve the efficiency and effect of the treatment and reduce the deposition and blockage of solid particles inside the device.

[0091] In summary, the water tank 21 system on the upper surface of the treatment tank 4 is an important component of the flue gas water recovery device for a thermal power plant provided by the present invention. It provides strong support for the treatment process of the device through sophisticated design and efficient operation, and improves the stable operation and efficient treatment of the device.

[0092] Specifically, the present invention provides a flue gas water recovery device for a thermal power plant boiler, wherein a collecting assembly 24 is provided at the lower portion of the processing tank 4, and the collecting assembly 24 includes a collecting box 2401 embedded in the bottom of the processing tank 4, and a sealing cover 2402 is slidably connected to the upper surface of the collecting box 2401, and the sealing cover 2402 is flush with the bottom wall of the processing tank 4, and the interior of the collecting box 2401 is slidably connected to a collecting bucket 2404 extending to the outside, and the outer surface of the first stirring rod 2003 is fixedly connected to the second scraper 2403, and the second scraper 2403 is in contact with the bottom wall of the processing tank 4.

[0093] In the above-mentioned flue gas water recovery device for a thermal power plant boiler, a collection component 24 is designed at the lower part of the treatment tank 4, which plays a vital role in the entire treatment process. The following is a detailed analysis of the collection component 24:

[0094] Collection box 2401: As the core part of the collection assembly 24, the collection box 2401 is embedded and installed at the bottom of the processing tank 4. Its main function is to collect sediment, impurities or other substances that need to be discharged during the processing. The design of the collection box 2401 allows it to hold a certain amount of substances, thereby reducing the need for frequent cleaning and improving the operating efficiency of the device.

[0095] Sealing cover 2402: Sealing cover 2402 is slidably connected to the upper surface of collection box 2401, and it is flush with the bottom wall of treatment tank 4. This design improves the sealing performance of treatment tank 4, preventing leakage of substances or entry of external impurities during treatment. At the same time, the sliding connection design of sealing cover 2402 also facilitates the opening and closing operation, making cleaning of collection box 2401 easier and faster.

[0096] Collection hopper 2404: The collection hopper 2404 is slidably connected to the inside of the collection box 2401, and it can extend outside the processing tank 4. This design allows the collected materials to be easily discharged from the processing tank 4 through the collection hopper 2404 without opening the entire processing tank. The sliding connection design of the collection hopper 2404 also allows it to be adjusted or replaced as needed to adapt to different processing needs.

[0097] Second scraper 2403: The second scraper 2403 is fixedly connected to the outer surface of the first stirring rod 2003, and it is closely attached to the bottom wall of the processing tank 4. During the stirring process, the second scraper 2403 moves with the rotation of the first stirring rod 2003, thereby scraping the bottom wall of the processing tank 4 and scraping the material attached to the bottom wall into the collection box 2401. This design effectively prevents the deposition and accumulation of materials and improves the cleaning and processing efficiency of the processing tank 4.

[0098] In summary, the collection assembly 24 plays an important role in the flue gas water recovery device of the boiler of the thermal power plant through its exquisite design and reasonable layout. It not only improves the processing efficiency and operation stability of the device, but also facilitates maintenance and cleaning work and reduces operating costs.

[0099] When the staff needs to add limestone, the limestone is added into the feeding box 8 through the feeding port at the top of the feeding box 8, and then the limestone falls on the top of the two sealing plates 12. After the amount of limestone to be added is determined, the feeding port at the top of the feeding box 8 is closed, and then the motor 17 is started to drive the rotation of the bidirectional threaded rod 16. The rotation of the bidirectional threaded rod 16 drives the guide block 15 to slide inside the guide groove 14, thereby driving the two sealing plates 12 to move. At this time, the sealing plate 12 will drive the linkage assembly 11 to run, and the linkage assembly 11 will drive the sealing assembly 9 to move. At this time, in the process of the two sealing plates 12 moving to both sides, the sealing assembly will cancel the seal on the feed pipe 6, and the addition of limestone can be realized. After the addition is completed, the sealing plate 12 and the sealing assembly 9 are closed, thereby realizing the sealing of the treatment tank 4, reducing the loss of carbon dioxide, and reducing the oxygen entry content, thereby improving the efficiency of adding limestone.

[0100] Mounting plate: Serves as the supporting base of the entire flue gas water recovery device, allowing each component to be installed stably.

[0101] Steam-water separator: Separates water vapor from boiler flue gas to improve the efficiency and quality of subsequent condensation processing.

[0102] Condenser: Condenses the water vapor separated by the steam-water separator into liquid water for subsequent processing.

[0103] Treatment tank: The condensed water is further treated, such as adding limestone for chemical reaction to remove harmful substances.

[0104] Recovery tank: Stores treated water to achieve water resource recycling.

[0105] Feed pipe: connects the treatment tank and the material guide box, and is used to feed limestone and other treatment agents into the treatment tank.

[0106] Feed guide box: assists the feeding process so that limestone and other treatment agents can enter the feed pipe smoothly.

[0107] Feeding box: It is used to temporarily store and transport limestone and other treatment agents. The feeding port on the top is convenient for the staff to add treatment agents.

[0108] Sealing plate: During the charging process, the charging box is sealed and opened by moving to prevent the escape of gas during the processing.

[0109] Motor: Provides power for the movement of the sealing plate to achieve automated feeding and sealing operations.

[0110] Guide groove and guide block: guide the moving trajectory of the sealing plate so that the sealing plate can move accurately and stably.

[0111] Bidirectional threaded rod: connected to the output shaft of the motor, drives the guide block and sealing plate to move through rotation.

[0112] Sealing assembly: Through structures such as semicircular sealing plates, the feed pipe is sealed to prevent gas from escaping during the processing process.

[0113] Linkage assembly: connects the sealing plate and the sealing assembly to achieve synchronous movement between the two.

[0114] Stirring assembly: including a second motor, a first stirring rod, a second stirring rod and a first scraper and other structures, used for stirring and mixing water and treatment agent in the treatment tank to fully carry out the chemical reaction.

[0115] Water tank: Stores water and provides water to the mixing assembly through the pump body and water hose to adjust the water temperature in the treatment tank and promote chemical reactions.

[0116] Collection assembly: includes collection box, sealing cover and collection hopper and other structures, used to collect sediment and impurities at the bottom of the treatment tank to improve the quality of treated water.

[0117] The steam-water separator is connected to the condenser through an outlet pipe and a drain pipe, and the separated water vapor is sent to the condenser for condensation.

[0118] The condenser is connected to the treatment tank through a drain pipe, and the condensed water is sent to the treatment tank for further treatment.

[0119] The treatment tank is connected to the recovery tank through a drain pipe, and the treated water is sent to the recovery tank for storage.

[0120] The feed pipe is connected with the treatment tank, and treatment agents such as limestone are added through the material guide box and the feeding box.

[0121] The motor drives the rotation of the bidirectional threaded rod to drive the guide block and the sealing plate to slide in the guide groove, thereby realizing the opening and sealing of the charging box.

[0122] The sealing component is connected to the sealing plate through a linkage component to achieve synchronous movement between the two, thereby ensuring the sealing of the feed pipe.

[0123] The second motor of the stirring assembly drives the first stirring rod to rotate, thereby driving the second stirring rod and the first scraper to stir and mix the water and the treatment agent in the treatment tank.

[0124] The water tank is connected to the first stirring rod of the stirring assembly through a water hose to provide a water source for the stirring process.

[0125] The collecting box of the collecting assembly is embedded in the bottom of the processing tank to collect sediment and impurities and discharge them through the collecting hopper.

[0126] In summary, the various structural technical features in the technical solution of the present invention are closely connected and interact with each other in a coordinated manner, thereby jointly realizing the effective recovery and treatment of flue gas water in the boiler of a thermal power plant.

[0127] The technical solution of the present invention solves the problem that a large amount of carbon dioxide generated by limestone inside the tank is released due to the tank opening being in an open state, thereby affecting the reaction rate by:

[0128] The present invention includes a connecting shaft, a connecting rod, a semicircular sealing plate, a first gear and a first movable plate. The semicircular sealing plate is attached to the top wall of the processing tank to form a seal. When limestone needs to be added, the sealing component moves through the meshing relationship between the first gear and the first movable plate to open the feed pipe; after the addition is completed, the sealing component moves again to close the feed pipe to achieve sealing. The linkage component includes a rotating shaft, a second gear and a second movable plate. The second movable plate moves synchronously with the first movable plate through the meshing relationship of the second gear, thereby driving the opening and closing of the sealing component.

[0129] Two sealing plates are slidably connected inside the feeding box and extend outside. Driven by the motor, the sealing plates move synchronously through the cooperation of the bidirectional threaded rod, the guide groove and the guide block. When the sealing plates move to both sides, the connection between the fixed rod and the second moving plate drives the linkage assembly and the sealing assembly to operate, open the feed pipe, and allow limestone to enter the processing tank. After the addition is completed, the sealing plate moves to the middle, closes the feed pipe again, and restores the sealing state of the processing tank.

[0130] Through the above-mentioned automatically controlled sealing and opening mechanism, the present invention maintains the sealing of the processing tank during the process of adding limestone, effectively reduces the escape of gases such as carbon dioxide, and avoids the influence of gas escape on the reaction rate.

[0131] Since the treatment tank remains sealed during the limestone addition process, the entry of oxygen is reduced, thereby improving the efficiency of the reaction between limestone and flue gas condensate, accelerating the formation of precipitates, and improving the efficiency of the entire flue gas water recovery process.

[0132] In summary, the present invention effectively solves the problem of carbon dioxide escaping due to the opening of the tank mouth and thus affecting the reaction rate through the design of the sealing component, the linkage component and the sealing plate and the interaction thereof.

[0133] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if the modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include the modifications and variations, and the above-described embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention.

Claims

1. A flue gas water recovery device for a thermal power plant boiler, comprising a mounting plate (1), characterized in that: The upper surface of the mounting plate (1) is provided with a steam-water separator (2), a condenser (3), a processing tank (4) and a recovery tank (5); the steam-water separator (2) has an air outlet pipe and a drain pipe connected to the condenser (3); the condenser (3) is connected to the processing tank (4) via the drain pipe; the processing tank (4) is connected to the recovery tank (5) via the drain pipe; the upper surface of the processing tank (4) is fixedly connected to a feed pipe (6) which is in communication with the interior; the upper surface of the feed pipe (6) is fixedly connected to a material guide box (7); The upper surface of the material guide box (7) is fixedly connected to a feeding box (8); a cavity (10) is provided inside the top plate of the processing tank (4); a linkage assembly (11) and a sealing assembly (9) are provided inside the cavity (10); two sealing plates (12) extending outside are slidably connected inside the feeding box (8); a motor (17) is fixedly connected to the outer surface of the feeding box (8); an output shaft of the motor (17) rotates and penetrates into the inside of the feeding box (8); a guide groove (14) is provided on the inner wall of the feeding box (8); two guide blocks (15) are slidably connected inside the guide groove (14); The two guide blocks (15) are respectively fixedly connected to the two sealing plates (12); a bidirectional threaded rod (16) is rotatably connected inside the guide groove (14); the bidirectional threaded rod (16) is fixedly connected to the output shaft of the motor (17); the two guide blocks (15) are respectively threadedly sleeved on two opposite threads of the bidirectional threaded rod (16); and a feeding port is provided at the top of the feeding box (8).

2. A flue gas water recovery device for a thermal power plant boiler according to claim 1, characterized in that: The sealing assembly (9) comprises a connecting shaft (903), wherein the connecting shaft (903) is rotatably connected to the interior of the cavity (10), and the lower end of the connecting shaft (903) is rotatably penetrated into the interior of the processing tank (4). The lower end of the connecting shaft (903) is fixedly connected to a connecting rod (902), and the end of the connecting rod (902) away from the connecting shaft (903) is fixedly connected to a semicircular sealing plate (901), and the upper surface of the semicircular sealing plate (901) is in contact with the top wall of the processing tank (4). The end of the connecting shaft (903) located in the interior of the cavity (10) is fixedly connected to a first gear (904), and a first movable plate (905) is arranged between the two first gears (904). Both side surfaces of the first movable plate (905) are provided with first tooth grooves (906), and the first tooth grooves (906) are meshed with the first gear (904).

3. A flue gas water recovery device for a thermal power plant boiler according to claim 2, characterized in that: The top wall of the processing tank (4) is provided with an annular groove (18), the upper surface of the semicircular sealing plate (901) is fixedly connected to a limiting rod (19), and the limiting rod (19) and the annular groove (18) are slidably connected.

4. The flue gas water recovery device for a thermal power plant boiler according to claim 1, characterized in that: The linkage assembly (11) comprises a rotating shaft (1101) rotatably connected to the inside of the cavity (10); a second gear (1102) is fixedly sleeved on the outer surface of the rotating shaft (1101); a second movable plate (1103) is arranged on the upper side of the second gear (1102); second tooth grooves (1104) are provided on the surfaces of the first movable plate (905) and the second movable plate (1103) on opposite sides; the second tooth grooves (1104) are meshed with teeth on the surface of the second gear (1102).

5. The device for recovering flue gas water from a boiler in a thermal power plant according to claim 3, characterized in that: A fixing rod (13) is fixedly connected to the lower surface of the sealing plate (12) on the right side, a sliding groove (1301) connected to the cavity (10) is provided on the upper surface of the processing tank (4), the fixing rod (13) is slidably connected inside the sliding groove (1301), and the fixing rod (13) is fixedly connected to the second movable plate (1103).

6. A flue gas water recovery device for a thermal power plant boiler according to claim 5, characterized in that: The upper surface of the processing tank (4) is provided with a stirring assembly (20), the stirring assembly (20) comprising a second motor (2001) fixedly connected to the upper surface of the processing tank (4), the output shaft of the second motor (2001) rotatably penetrates into the interior of the processing tank (4), the interior of the processing tank (4) is rotatably connected with a first stirring rod (2003), the first stirring rod (2003) and the output shaft of the second motor (2001) are both fixedly sleeved with a third gear (2002), the two third gears (2002) are meshingly connected, the outer surface of the first stirring rod (2003) is fixedly connected with a second stirring rod (2004), the outer surface of the second stirring rod (2004) is fixedly connected with a first scraper (2005), and the first scraper (2005) is in contact with the inner wall of the processing tank (4).

7. A flue gas water recovery device for a thermal power plant boiler according to claim 6, characterized in that: The upper surface of the treatment tank (4) is fixedly connected to a water tank (21), a pump body is arranged inside the water tank (21), a water inlet is arranged at the rear side of the water tank (21), the upper end of the first stirring rod (2003) rotates to pass through the treatment tank (4), a water passage chamber (22) is provided inside the first stirring rod (2003), a water passage hose is provided between the water tank (21) and the first stirring rod (2003), and the water passage hose is connected to the first stirring rod (2003) via a rotating flange, a water outlet pipe (23) is fixedly connected to the outer surface of the first stirring rod (2003), and a water outlet channel (2301) connected to the water passage chamber (22) is provided inside the water outlet pipe (23).

8. The device for recovering flue gas water from a boiler in a thermal power plant according to claim 7, characterized in that: A collecting assembly (24) is provided at the lower part of the processing tank (4), and the collecting assembly (24) includes a collecting box (2401) embedded in the bottom of the processing tank (4); a sealing cover (2402) is slidably connected to the upper surface of the collecting box (2401); the sealing cover (2402) is flush with the bottom wall of the processing tank (4); the inside of the collecting box (2401) is slidably connected to a collecting bucket (2404) extending outside; the outer surface of the first stirring rod (2003) is fixedly connected to a second scraper (2403); the second scraper (2403) is in contact with the bottom wall of the processing tank (4).

Images