Efficient energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system

Abstract

The application discloses a kind of high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing systems, mainly including super-wetting patterned condensing subsystem, intelligent temperature control vibration subsystem and liquid drop power generation system.The super-wetting patterned condensing subsystem includes arrayed condensing finned tube, the surface of condensing finned tube is sprayed with hydrophobic nanoparticles to form super-hydrophobic surface, and a plurality of three-dimensional corrugated ordinary hydrophobic corrugated lines are formed on the super-hydrophobic surface by laser ablation, forming a super-hydrophobic-ordinary hydrophobic patterned liquid drop diode surface.The application couples the super-wetting patterned condensing subsystem with the liquid drop power generation system, uses the condensing subsystem to provide volume-controllable, drop direction-adjustable condensing drops for the liquid drop power generation system, maximizes the power generation efficiency of the liquid drop power generation system.Finally, the condensing equipment accelerates the detachment rate of condensing liquid on the surface of condenser by introducing the intelligent temperature control vibration subsystem, improves the energy utilization efficiency and service life of flue gas condenser.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of boiler flue gas condensers, in particular to a high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system. BACKGROUND

[0002] Boilers are common fossil energy heat devices in industrial and civil fields. A large amount of heat energy and some harmful gases and particulate matter are carried in the flue gas generated in the fossil energy combustion process. The waste of these flue gas waste heat and the emission of pollutants pose a double pressure on energy resources and the environment. Therefore, improving the flue gas waste heat utilization efficiency and thereby improving the energy utilization rate of the boiler equipment has very important engineering and scientific significance.

[0003] The working principle of the flue gas condenser and other heat exchange devices in the boiler is to cool the flue gas by using water or air with lower temperature to reduce the flue gas temperature. The flue gas condenser heat exchange surface is a device installed at the lower part of the boiler tail flue for recovering flue gas waste heat. The flue gas condenser heat exchange surface absorbs the heat of high-temperature flue gas, reducing the flue gas exhaust temperature. At the same time, the water or air as the coolant absorbs heat, realizing heat recovery and utilization.

[0004] The traditional boiler flue gas condenser uses a finned tube made of red copper or other metals as the main condensing heat exchange component, which is fixed on the condenser body by welding or other methods. Among them, the red copper or other metal finned tube has a hydrophilic surface, and the condensate is easy to adhere to the surface of the heat exchanger, forming a film-shaped condensation, increasing the heat transfer resistance, hindering the condensing heat exchange process, greatly reducing the condensing efficiency, and thereby reducing the energy utilization efficiency. At the same time, the condensate produced in the condensing heat exchange process is acidic, containing a large amount of Cl - , NO3 - , NO2 - , SO4 2- , etc. Corrosive components, in the long-term contact between the condensate and the condensing heat exchange surface, the surface of the condenser will be corroded and damaged at low temperature, which will greatly reduce the service life of the flue gas condenser. Therefore, improving the heat exchange efficiency of the flue gas condenser and increasing its corrosion resistance have become major problems restricting the development of flue gas condensers. SUMMARY

[0005] In view of the above technical problems existing in the prior art, the purpose of the present application is to provide a high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system.

[0006] The application mainly comprises a super-wetting patterned condensing sub-system, an intelligent temperature control vibration sub-system and a liquid drop power generation system. Figure 3 On the ordinary hydrophobic wave line pattern, the liquid drop is difficult to slide downward in the centripetal direction (wave peak position) of the wave line due to three-phase line matching, while it is easy to detach in the centrifugal direction (wave valley position) due to three-phase line mismatch migration. When the liquid drop is formed at the wave valley position, as the condensation degree deepens, the liquid drop gradually grows, and as the three-phase line of the liquid drop cannot match the hydrophobic pattern, when the volume of the liquid drop reaches a critical value, the liquid drop easily slides down under the action of gravity and finally detaches from the condenser surface. When the liquid drop is formed at the wave peak position, as the three-phase line of the liquid drop matches the hydrophobic pattern, the liquid drop is difficult to slide down, and as the condensation degree deepens, the liquid drop gradually grows, and finally, the liquid drop is diverted from the wave peak position to the wave valley positions on both sides along the ordinary hydrophobic pattern, rolls down from the wave valley position, and detaches from the condensing surface. Therefore, the super-hydrophobic-hydrophobic patterned surface achieves the effect of a liquid drop diode condensing surface. As the circular arc radius of the ordinary hydrophobic wave line increases, the three-phase line of the liquid drop that matches the ordinary hydrophobic wave line also increases, and therefore the volume of the liquid drop formed by nucleation condensation also increases. Therefore, different circular arc radii of the hydrophobic wave line correspond to different liquid drop volumes for optimal diode control effect, and the circular arc radius is directly proportional to the liquid drop radius.

[0007] On the super-hydrophobic-ordinary hydrophobic patterned liquid drop diode surface, the ordinary hydrophobic region provides nucleation sites for the formation of condensate during condensation, and by processing specific three-dimensional wavy hydrophobic regions, the condensate drops can roll down in a specific direction after reaching a specific volume, achieving the effect of a liquid drop sliding diode and providing a more stable and reliable rolling direction and volume for the removal of condensate drops. The super-hydrophobic region prevents the condensate drops from further aggregating after forming in the ordinary hydrophobic region, thereby promoting dropwise condensation and reducing the contact between the condensate and the heat exchanger surface, and thus improving the corrosion resistance of the condenser surface by utilizing the characteristics of liquid drops being difficult to adhere and aggregate. At the same time, since the ordinary hydrophobic region has a high surface energy, the condensate in the surrounding super-hydrophobic region tends to move to the ordinary hydrophobic region, achieving the purpose of condensate enrichment and directional removal of the condensate on the heat exchange surface.

[0008] The specific technical solutions adopted by the application are as follows:

[0009] The application discloses a high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system, which comprises a condensing system, an intelligent temperature control vibration subsystem and a liquid drop power generation system.

[0010] The super-wetting patterned condensing subsystem comprises a plurality of horizontally-installed and sequentially-connected condensing finned pipes arranged in a horizontal row and vertical column array in the condenser inner barrel.

[0011] The condensing finned pipe comprises a base pipe and a plurality of fins axially and spaced apart on the outer surface of the base pipe, the fins being perpendicular to the outer surface of the base pipe, and the outer surfaces of the base pipe and the fins each having a super-hydrophobic surface and a plurality of three-dimensional corrugated common hydrophobic corrugated lines formed on the super-hydrophobic surface by laser ablation; the common hydrophobic corrugated lines on the outer surface of the fin extend in the horizontal direction and are arranged in parallel and spaced apart in the vertical direction; and the common hydrophobic corrugated lines on the outer surface of the base pipe extend in the axial direction and are arranged in parallel and uniformly spaced apart in the circumferential direction.

[0012] The condenser inner barrel is externally provided with a power supply for providing electric energy for the intelligent temperature control vibration subsystem.

[0013] The liquid drop power generation system comprises a plurality of liquid drop power generation units, the liquid drop power generation units are in one-to-one correspondence with the condensing finned pipes, one liquid drop power generation unit is arranged directly below each condensing finned pipe, and the liquid drops condensed and dropped on the condensing finned pipe can reach the surface of the liquid drop power generation unit to generate electric energy; and the electric outputs of all the liquid drop power generation units are connected in series by wires and connected to the power supply.

[0014] The intelligent temperature control vibration subsystem comprises a temperature sensor, a temperature-sensing vibration controller and a spring vibrator, the temperature sensor is used for monitoring the condensing agent temperature of the condensing agent discharge outlet, when there are more condensed liquid drops on the surface of the condensing finned pipe, the heat exchange efficiency of the condensing finned pipe is hindered, and then the temperature of the water or air coolant is reduced, when the temperature sensor detects that the temperature of the coolant is lower than a critical value, a signal is transmitted to the temperature-sensing vibration controller, the spring vibrator is controlled to work through the feedback of the temperature-sensing vibration controller, the condenser inner barrel is vibrated, the large amount of condensed liquid drops on the outer surface of the condensing finned pipe are shaken off, the removal frequency of the condensed liquid on the surface of the condenser is actively accelerated, the storage amount of the condensed liquid on the surface of the condenser is instantaneously and rapidly reduced, the phase change heat exchange degree of the flue gas is improved, and then the condensing heat exchange efficiency is improved.

[0015] Finally, because the condensed droplets contain many ions and possess high conductivity, the droplet power generation system exploits the high conductivity of the condensed liquid to further collect its gravitational potential energy, converting it into electrical energy and storing it within the power supply. The droplet power generation system cleverly utilizes the condensation subsystem to provide condensed droplets with controllable volume and adjustable falling direction, maximizing the conversion of the droplets' gravitational potential energy into stored electrical energy. Its primary principle is to utilize the contact charging and electrostatic induction principles of the droplet power generation surface to create a droplet generator based on interfacial and switching effects. The impact of separated droplets on the power generation surface generates charges, enabling the conversion of the droplets' gravitational potential energy into electrical energy. The circuit is connected to an energy storage power supply, directing the generated electrical energy into the power supply for storage. This stored electricity provides energy input for the vibration of the intelligent temperature-controlled vibration subsystem, thereby improving the condensation efficiency and corrosion resistance of the condenser without external power consumption or the introduction of an external circuit system. This self-powered system offers the unique advantage of a simple structure.

[0016] Furthermore, the width of the ordinary hydrophobic corrugation line is 100-1000μm, the arc radius of the corrugation is 3-10mm, and the spacing between two adjacent parallel hydrophobic corrugation lines is 3-20mm. As the width of the ordinary hydrophobic corrugation line increases and the spacing decreases, the relative area of ​​the nucleation site of the condensed droplets during the condensation process increases, and the droplet condensation efficiency will increase appropriately. However, as the width of the ordinary hydrophobic corrugation line increases again and the spacing decreases again, the droplet condensation state of the condensation process gradually changes to a film-like condensation state, which ultimately leads to an increase in the overall heat transfer resistance of the condensation process and a decrease in the overall condensation efficiency. At the same time, due to the increase in the contact area between the condensate and the condenser, the corrosion probability of the condenser surface also increases. Therefore, from the perspective of the condensation efficiency of the overall condenser, the width and spacing of the ordinary hydrophobic corrugation line need to be set in a suitable value range to ensure that the condensate on the condenser surface is in a droplet condensation state while having a higher condensation efficiency.

[0017] Furthermore, two adjacent condensing fin tubes are sequentially connected together by welding using U-shaped elbows. In this way, the condensing fin tubes are connected in sequence from the first to the last.

[0018] The flue gas inlet and outlet of the condenser inner tank are respectively connected to the flue gas inlet and flue gas exhaust port of the condenser outer shell by flanged stainless steel vacuum bellows. The condenser inner tank is made of aluminum alloy and the fins are made of red copper. Its structure is a circular sheet structure.

[0019] Further, the spring vibrator comprises a vibrator motor, a crank, a connecting rod, a vibration shaft and a spring, the vibrator motor is arranged on the outer wall of the top of the condenser shell, the output shaft of the vibrator motor is connected with the crank, the crank is connected with the connecting rod, the connecting rod vertically penetrates through the connecting hole of the top of the condenser shell and is connected with the upper end of the vibration shaft through a bearing, the lower end of the vibration shaft is fixedly connected with the top of the inner container of the condenser, and the spring is fixedly connected with the inner wall of the top of the condenser shell and the outer wall of the top of the inner container of the condenser respectively and is arranged outside the vibration shaft.

[0020] The vibrator motor works to drive the crank to rotate and drive the connecting rod to move vertically, and the connecting rod is located at the lowest point in the vertical direction before the vibration works.

[0021] The temperature sensor is signal-connected with the vibrator motor of the spring vibrator through the temperature-sensing vibration controller, the temperature sensor transmits the monitored temperature data to the temperature-sensing vibration controller, when the monitored temperature is lower than the set temperature, the temperature-sensing vibration controller feeds back a signal to the vibrator motor of the spring vibrator to work, the vibration shaft is controlled to pull the inner container of the condenser to move upward, the initial displacement of the inner container of the condenser is given and the spring is compressed, then the vibrator motor stops working and releases the pulling force given to the inner container of the condenser, the spring drives the inner container of the condenser to move up and down reciprocatingly, and finally the condensate drops on the outer surface of the condensing finned tube.

[0022] Further, the bottom of the inner container of the condenser is provided with a condensate recovery port, and the bottom of the condenser shell is further provided with a condensate recovery tank, the condensate recovery port is connected with the top of the condensate recovery tank, and the condensate recovery tank is used for recovering the condensate of flue gas.

[0023] The liquid-drop power generation unit comprises two mirror-symmetrical inclined power generation panels, and the two power generation panels are connected through a V-shaped condensate recovery groove to form a power generation unit; each power generation unit is horizontally placed below a corresponding condensing finned tube, the length of the power generation unit extends in the same direction as the axial direction of the condensing finned tube, the length of the condensate recovery groove is greater than the axial length of the condensing finned tube, the two ends of the condensate recovery groove are fixedly connected with the inner wall of the inner container of the condenser through welding, and liquid outlets are arranged at the positions of the two ends of the condensate recovery groove close to the inner wall of the inner container of the condenser.

[0024] The liquid drops condensed and dropped on the condensing finned tube fall on the surface of the power generation panel of the power generation unit to realize self-power generation, are collected in the condensate recovery groove, and finally fall from the liquid outlets at the two ends of the condensate recovery groove and flow into the condensate recovery tank through the condensate recovery port to be collected.

[0025] Further, the inclination angle of the power generation panel with respect to the horizontal plane is 15-60°, preferably 25-30°, and the vertical distance between the highest point of the power generation panel and the lowest point of the condensation fin pipe is 5-10 cm.

[0026] Further, in the structure of the liquid-drop power generation unit, the condensation liquid recovery groove and the power generation panels at both ends thereof share a stainless steel liquid-drop power generation base, the bottom upper surface of the base has an arc-shaped protrusion, and a liquid-drop power generation surface layer is arranged on the upper surface of the base at the positions of the two power generation panels, the liquid-drop power generation surface layer is spliced together in alignment with the arc-shaped protrusion, so that the liquid drops falling on the surface of the liquid-drop power generation surface layer can smoothly slide into the condensation liquid recovery groove.

[0027] Further, the raw materials for preparing the super-hydrophobic surface include titanium dioxide and fluoride ST-110, and the feeding ratio of the two is 1-2 g: 0.9-2 mL;

[0028] The steps of preparing the super-hydrophobic surface and the hydrophobic corrugated line on the outer surface of the base pipe or fin are as follows:

[0029] S1: titanium dioxide is added to anhydrous ethanol and ultrasonically dispersed, then fluoride ST-110 is added, and stirred uniformly, and reacted at room temperature for 5-7 h, to prepare a fluoride-titanium dioxide suspension solution through hydrolysis and condensation of titanium dioxide and ST-110;

[0030] S2: polydimethylsiloxane (PDMS) and a curing agent are dispersed and mixed with petroleum ether as a solvent to obtain a PDMS mixed solution;

[0031] S3: the PDMS mixed solution is sprayed on the outer surface of the base pipe or fin using a spray pen, the petroleum ether is rapidly evaporated at high temperature to promote curing of the PDMS, and after the spraying is completed, the PDMS is kept in a high-temperature environment for heating for 3-10 min to make the PDMS present in a semi-cured state;

[0032] S4: then, the fluoride-titanium dioxide suspension solution is sprayed on the outer surface of the base pipe or fin using a spray pen, and in the spraying process, the base pipe or fin is placed in an oven at 90-110°C to accelerate evaporation of the solvent, and the titanium dioxide forms a micro-nano structure on the surface of the base to prepare a super-hydrophobic coating, the water drop contact angle of the super-hydrophobic coating in air is 150°-165°, and the hysteresis angle is 4-6°, and the thickness of the super-hydrophobic coating is 140-270 μm;

[0033] S5: ablation is performed on the sprayed super-hydrophobic surface by using femtosecond laser, the fluorinated micro-nano structure of the super-hydrophobic surface is destroyed by high-temperature ablation, the super-hydrophobic surface is changed into an ordinary hydrophobic surface to form an ordinary hydrophobic coating, the water droplet contact angle of the ordinary hydrophobic coating in air is 80-100°, and the hysteresis angle is 10-20°, and the thickness of the ordinary hydrophobic coating is 60-220 μm; first, the sprayed base pipe or fin is placed in the femtosecond laser processing area, and ablation processing is performed by using femtosecond laser, wherein the femtosecond laser power is 5-25 W, and the speed is 5-20 mm / s, a plurality of mutually parallel hydrophobic corrugation lines are formed by femtosecond laser ablation, the line width of the hydrophobic corrugation line is between 100-1000 μm, the circular arc radius of the corrugation is 3-10 mm, and the spacing between two adjacent parallel hydrophobic corrugation lines is 3-20 mm.

[0034] Further, the preparation of the condensing finned tube also includes an assembly spraying step of the base pipe and the fin, specifically as follows: after the super-hydrophobic surface-ordinary hydrophobic surface processing of the base pipe and the fin is completed, the fin is vertically arranged equidistantly on the outer surface of the base pipe, and is connected by welding; the welding method will destroy the super-hydrophobic surface-ordinary hydrophobic surface characteristics of the welding part, thereby the processed super-hydrophobic surface-ordinary hydrophobic surface is masked by mask method, the welding part is exposed, and the welding part is sprayed for secondary super-hydrophobic spraying, so that the damaged part is repaired by super-hydrophobic spraying, and the complete protection of the wetting characteristics of the surface is realized.

[0035] A high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system, the condensing method of the system includes the following steps:

[0036] 1) The flue gas after combustion is introduced into the flue gas inlet of the inner container of the condenser, the condensing water is introduced into the condensing agent inlet, the flue gas exchanges heat with the arrayed condensing finned tube in the inner space of the condenser inner container, and the condensed water after heat exchange is discharged from the condensing agent outlet;

[0037] 2) The hydrophobic corrugation line on the condensing finned tube serves as a hydrophobic nucleation site, and the easily condensable substances in the flue gas are condensed and nucleated on the hydrophobic nucleation site;

[0038] 3) With the continuous input of flue gas, the condensate gradually increases on the nucleation site, and due to the existence of the super-hydrophobic surface, the condensate droplets are isolated from each other, forming a beaded condensation, and the temperature of the condensing water in the condensing finned tube increases, realizing the recycling of waste heat;

[0039] 4) With the re-input of flue gas, the volume of the condensate droplets increases again, the surface of the condensing finned tube is covered with a large number of condensate droplets, and part of the droplets increase in volume to reach the critical value of rolling resistance and roll off;

[0040] 5)At the same time, as the condensate droplet volume increases, the heat transfer resistance of the condensing finned tube increases, the heat transfer efficiency decreases, and the condensing finned tube outlet condensate temperature decreases;

[0041] 6)When the condensing finned tube outlet condensate temperature decreases to the critical value of the intelligent temperature control vibration subsystem detection temperature and below, the temperature sensor detects the temperature signal and transmits the signal to the temperature sensing vibration controller, which feeds back and controls the spring vibrator to work, vibrates the condenser inner container, promotes the condensing surface bead condensation condensate droplet to drop, and the nucleation site is unloaded, and the flue gas is continuously input again, realizing the secondary circulation condensation of flue gas;

[0042] 7)The condensate droplet contains a large amount of ions and has good conductivity, and after the droplet drops, it falls on the droplet power generation unit below the condensing finned tube, and the gravitational potential energy is converted into electrical energy by the impact of the droplet, and the electrical energy is transmitted to the power supply through the wire;

[0043] 8)The liquid droplet after impacting the power generation surface rolls into the condensate recovery tank, and after being collected by the condensate recovery tank, it flows into the condensate recovery pool at the bottom of the condenser inner container for recovery;

[0044] 9)The power switch controller of the power supply remains in the open state, and the power supply electrical energy is transmitted to the intelligent temperature control vibration subsystem through the wire, realizing the self-energy closed cycle of the whole intelligent temperature control vibration flue gas condensing system.

[0045] Compared with the prior art, the present application has the following advantages:

[0046] (1) The present application designs an ultra-hydrophobic-ordinary hydrophobic patterned liquid droplet diode condensing surface, which realizes the control of the rolling volume and direction of the liquid droplet under the condition of ensuring the realization of dropwise condensation of the condenser, and improves the stability and controllability of the liquid droplet condensation nucleation and removal process;

[0047] (2) The organic combination of the ultra-hydrophobic-hydrophobic patterned liquid droplet diode condensing surface and the temperature control vibrator strengthens the removal efficiency of the liquid droplet and further improves the corrosion resistance and heat transfer efficiency of the condenser;

[0048] (3) The ingenious combination of the ultra-hydrophobic-hydrophobic patterned liquid droplet diode condensing surface and the liquid droplet power generation surface can make the power generation efficiency of the liquid droplet power generation surface reach the best state through the control of the liquid droplet drop volume and direction by the liquid droplet diode condensing surface;

[0049] (4) By combining the liquid droplet power generation surface with the temperature control vibrator, the active removal of the condensate droplet of the condensing subsystem is realized under the premise of no external power consumption;

[0050] (5) The introduction of the droplet power generation surface can realize droplet power generation and further recover the condensed liquid, effectively prevent the condensed liquid from impacting and corroding the lower condensing pipeline during falling, and further improve the corrosion resistance.

[0051] The application realizes the droplet condensation state of the condenser surface droplet condensation by introducing the specific super-hydrophobic-common hydrophobic patterned droplet diode surface, accelerates the removal rate of the condenser surface condensed liquid by combining with the temperature control vibration system, solves the film condensation of the traditional fixed flue gas condensing system and the low condensation liquid removal rate of the condenser surface, greatly improves the energy utilization efficiency of the flue gas compared with the traditional condenser, and better prolongs the service life of the flue gas condenser. In addition, the droplet diode ingeniously further couples the super-wetting patterned condensing sub-system and the droplet power generation system, utilizes the condensing sub-system to provide the energy supply sub-system with the condensate droplets with controllable volume and adjustable falling direction, maximizes the power generation efficiency of the droplet power generation system. Finally, the condensing equipment accelerates the removal rate of the condenser surface condensed liquid by introducing the vibration system.

[0052] In summary, the application starts from the macroscopic level of the condensing system design and the surface design level of the condensing surface multi-scale structure and the wetting synergy adjustment, under the premise of no external energy input, innovatively combines the vibration system and the super-wetting patterned droplet diode surface, and is applied to the boiler flue gas condenser, and a new concept boiler flue gas condenser with high heat exchange efficiency and super strong corrosion resistance is proposed. The system can solve the problems of weak corrosion resistance and low heat exchange efficiency of the condenser under the premise of no external power consumption, improve the energy utilization efficiency and service life of the flue gas condenser. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 is the vertical sectional view of the condenser overall structure of the application;

[0054] Figure 2 is the structure schematic view of the condensing finned tube and a corresponding droplet power generation unit;

[0055] Figure 3 is the structure and droplet flow schematic view of the patterned droplet diode condensing surface;

[0056] Figure 4 is the structure schematic view of the droplet power generation surface;

[0057] Figure 5 is the overall circuit diagram of the circuit connection between the intelligent temperature control vibration sub-system and the droplet power generation system.

[0058] Figure 6The schematic view of the connecting structure between the crank, connecting rod, and vibration shaft of the spring vibration device and the inner container and outer shell of the condenser.

[0059] Figure 7 The schematic view of the overall structure of the spring vibration device.

[0060] 1-smoke inlet, 2-flange stainless steel vacuum bellows, 3-condenser inner container, 4-condenser outer shell, 5-power control switch, 6-liquid droplet power generation unit, 7-condensed liquid recovery port, 8-condensed liquid recovery pool, 9-condensed liquid discharge pipeline, 10-condensing agent discharge port, 11-smoke outlet, 12-condensing finned tube, 13-U-shaped bend, 14-spring vibration device, 15-power supply, 16-temperature sensing vibration controller, 17-condensing agent inlet, 18-temperature sensor, 19-base pipe, 20-fins, 21-stainless steel liquid droplet power generation base, 22-liquid droplet power generation surface layer, 23-super-hydrophobic surface, 24-hydrophobic corrugated line, 25-liquid droplet, 26-aluminum sheet, 27-FEP film, 28-double-sided conductive cloth, 29-vibrator motor, 30-crank, 31-connecting rod, 32-vibration shaft, 33-spring. DETAILED DESCRIPTION

[0061] The application will be further described in conjunction with specific examples, but the scope of protection of the application is not limited thereto.

[0062] Example: Control Figures 1-5

[0063] An efficient and energy-saving corrosion-resistant intelligent temperature control vibration smoke condensing system, comprising a condensing system, an intelligent temperature control vibration subsystem, and a liquid droplet power generation system (i.e., a liquid droplet power generation self-energy supply subsystem).

[0064] The condensing system comprises a condenser inner container 3 and a condenser outer shell 4 arranged outside the condenser inner container 3. The left and right side walls of the condenser inner container 3 are respectively provided with a smoke inlet and a smoke outlet. An ultra-wetting patterned condensing subsystem is arranged inside the condenser inner container 3. Figure 1 The smoke inlet and the smoke outlet of the condenser inner container 3 are respectively connected with the smoke inlet 1 and the smoke outlet 11 of the condenser outer shell 4 by flange stainless steel vacuum bellows 2. The condenser inner container 3 is provided with a condensed liquid recovery port 7 at the bottom. The condenser outer shell 4 is further provided with a condensed liquid recovery pool 8 at the bottom. The condensed liquid recovery port 7 is connected with the top of the condensed liquid recovery pool 8. The condensed liquid recovery pool 8 is used for recovering the condensed liquid of the smoke.

[0065] The condensing system comprises a condenser inner container 3 and a condenser outer shell 4 arranged outside the condenser inner container 3. The left and right side walls of the condenser inner container 3 are respectively provided with a smoke inlet and a smoke outlet. An ultra-wetting patterned condensing subsystem is arranged inside the condenser inner container 3. Figures 1-3, the condenser inner container 3 is internally provided with a super-wetting patterned condensing sub-system, which comprises a plurality of condensing finned tubes 12 horizontally installed and sequentially connected in series inside the condenser inner container 3. The condensing finned tubes 12 are arranged in a horizontal-row vertical-column array. The inlet of the first condensing finned tube is the condensing agent inlet 17 and is connected with the condensing agent inlet pipe. The outlet of the last condensing finned tube is the condensing agent outlet 10 and is connected with the condensing agent outlet pipe. The condensing finned tube comprises a base pipe 19 and a plurality of fins 20 axially and spaced apart along the outer surface of the base pipe 19. The fins 20 are perpendicular to the outer surface of the base pipe 19. The fins 20 are made of red copper and have a circular ring sheet structure.

[0066] In the structure of the horizontal-row vertical-column array of the condensing finned tubes according to the present application, two adjacent condensing finned tubes are sequentially connected together by U-shaped bent pipes 13 through welding. In this way, the condensing finned tubes are sequentially connected from the first to the last. As shown in Figure 1 In the structure of the horizontal-row vertical-column array of the condensing finned tubes according to the present application, two adjacent condensing finned tubes are sequentially connected together by U-shaped bent pipes 13 through welding. In this way, the condensing finned tubes are sequentially connected from the first to the last. As shown in

[0067] The outer surfaces of the base pipe 19 and the fins 20 are provided with patterned liquid-drop diode condensing surfaces, which have super-hydrophobic surfaces 23 and a plurality of arrayed three-dimensional corrugated hydrophobic corrugated lines 24 formed on the super-hydrophobic surfaces 23 by laser ablation. The hydrophobic corrugated lines 24 on the outer surface of the fins 20 extend in the horizontal direction and are arranged in parallel and spaced apart in the vertical direction. The hydrophobic corrugated lines 24 on the outer surface of the base pipe 19 extend in the axial direction and are arranged in parallel and spaced apart uniformly in the circumferential direction. The line width of the hydrophobic corrugated lines 24 is 100-1000 μm, the radius of the circular arc of the corrugation is 3-10 mm, and the distance between two adjacent parallel hydrophobic corrugated lines 24 is 3-20 mm.

[0068] The super-wetting patterned condensing sub-system mainly prepares a super-hydrophobic-hydrophobic patterned liquid drop diode surface by changing the surface energy and micro-nano structure of the condenser surface, ingeniously applies the patterned surface to the condenser corrosion prevention process, and further realizes the fixed direction and volume removal of the condensing liquid drops through the patterned design of the surface. The ordinary hydrophobic area provides nucleation sites for the condensation process due to its high surface energy, and the super-hydrophobic area successfully separates adjacent liquid drops due to the low surface energy, so that the condensing liquid drops are in the dropwise condensation process in the specific area. In addition, through the design of the pattern structure of the patterned liquid drop diode surface, the direction and volume of the condensing liquid drops on the surface are realized. The hydrophobic corrugated line 24 is the nucleation site for the condensation of liquid drops, and the width and interval of the nucleation site determine the condensation rate per unit area, and the corrugated arc radius of the hydrophobic corrugated line 24 determines the critical value of the rolling and removal of the liquid drops.

[0069] The intelligent temperature control vibration sub-system includes a temperature sensor 18, a temperature sensing vibration controller 16 and a spring vibrator 14.

[0070] Comparison Figures 6-7 The spring vibrator 14 includes a vibrator motor 29, a crank 30, a connecting rod 31, a vibration shaft 32 and a spring 33. The vibrator motor 29 is arranged on the top outer wall of the condenser shell 4. The output shaft of the vibrator motor 29 is connected with the crank 30, and the crank 30 is connected with the connecting rod 31. The connecting rod 31 vertically penetrates through the connecting hole on the top of the condenser shell 4 and is connected with the upper end of the vibration shaft 32 through a bearing. The lower end of the vibration shaft 32 is fixedly connected with the top of the condenser inner container 3. The two ends of the spring 33 are respectively fixedly connected with the inner wall of the top of the condenser shell 4 and the outer wall of the top of the condenser inner container 3, and the spring 33 is arranged outside the vibration shaft 32. The vibrator motor 29 works to drive the crank 30 to rotate and drive the connecting rod 31 to move linearly in the vertical direction. Before the vibration work, the connecting rod 31 is located at the lowest point in the vertical direction.

[0071] The specific working process of the spring shaker 14 is as follows: before vibration, the crank is at the lowest point in the vertical direction (the connecting rod 31 is at the lowest point in the vertical direction), and the wall of the condenser inner container 3 is fixed at the center inside the condenser shell 4 by the spring shaker 14. During vibration, the motor shaft of the shaker motor 29 rotates, the motor shaft drives the crank to rotate, the crank drives the vibration shaft 32 of the condenser inner container 3 to produce displacement in the vertical direction through the connecting rod, and then the condenser inner container 3 produces displacement in the vertical direction, at this time the spring 33 is compressed to a certain extent, when it is lifted by a certain displacement, the shaker motor 29 stops running, and then the lifting force of the vibration shaft 32 on the condenser inner container 3 is removed, the compressed potential energy of the spring 33 is suddenly released, and at the same time under the action of the gravity of the condenser inner container 3, the condenser inner container 3 moves downward sharply, the spring 33 is stretched and then lifts the condenser inner container 3 upward again, thereby driving the condenser inner container to produce up-down reciprocating motion (the motion amplitude gradually decreases), during which the condenser inner container 3 is vibrated to a certain extent, and finally the condensate droplets on the outer surface of the condenser finned tube are caused to drop down.

[0072] The temperature sensor 18 is signal connected with the shaker motor 29 of the spring shaker 14 through the temperature sensing vibration controller 16, the temperature sensor 18 transmits the monitored temperature data to the temperature sensing vibration controller 16, when the monitored temperature is higher than the set temperature, the temperature sensing vibration controller 16 feeds back a signal to the shaker motor 29 of the spring shaker 14 to work, controls the vibration shaft 32 to lift the condenser inner container 3 to reciprocate up and down, and during the vibration of the condenser inner container 3 by the spring 33, the condensate droplets on the outer surface of the condenser finned tube are caused to drop down.

[0073] For comparison Figure 1 The condenser inner container 3 is provided with a power supply 15 outside for providing electric energy for the intelligent temperature control vibration subsystem, and the power supply 15 is arranged on the inner wall of the condenser shell 4. A power supply control switch 5 is arranged on the circuit between the intelligent temperature control vibration subsystem and the power supply 15, and the power supply control switch 5 is arranged on the outer wall of the condenser shell 4.

[0074] The liquid droplet power generation system comprises a plurality of liquid droplet power generation units 6, and each liquid droplet power generation unit corresponds to a condenser finned tube. Each condenser finned tube is provided below with a liquid droplet power generation unit 6, and the condensate droplets falling on the condenser finned tube can reach the surface of the liquid droplet power generation unit 6 to generate electric energy by self-power generation. The electric outputs of all the liquid droplet power generation units 6 are connected in series by wires and connected to the power supply 15. The wires connected to the electric outputs can be wrapped with plastic sheath for corrosion prevention, and the wire connection can be painted or sprayed with conventional wire corrosion-resistant paint (such as polyurethane paint) for corrosion prevention.

[0075] For comparison Figure 1, the liquid drop power generation unit 6 includes two mirror-symmetrical inclined power generation panels, the two power generation panels are connected by a V-shaped condensate recovery groove at the bottom, forming a power generation unit; each power generation unit is horizontally placed directly below a corresponding one of the condensing finned pipes, and the length of the power generation unit extends in the same direction as the axial direction of the condensing finned pipe, and the length of the condensate recovery groove is greater than the axial length of the condensing finned pipe, the two ends of the condensate recovery groove are connected and fixed with the inner wall of the condenser inner container 3 by welding, and the two ends of the condensate recovery groove are provided with liquid outlet holes close to the inner wall of the condenser inner container 3. The liquid drops condensed and dropped on the condensing finned pipe fall onto the power generation panel surface of the power generation unit to realize self-power generation, and then are collected in the condensate recovery groove. The liquid collected in the condensate recovery groove falls from the liquid outlet holes at the two ends, and finally flows into the condensate recovery pool 8 through the condensate recovery port 7 for collection. The condensate recovery pool 8 is also provided with a condensate discharge pipeline 9.

[0076] The inclination angle of the power generation panel with the horizontal plane is 15-60°, preferably 25-30°, and the vertical distance between the highest point of the power generation panel and the lowest point of the condensing finned pipe is 5-10 cm. The inclination angle of the power generation panel has a certain influence on the change of the liquid drop power generation amount, so it is necessary to set a suitable range. In addition, as the distance between the condensing finned pipe and the liquid drop power generation surface increases, the liquid drop power generation amount increases, but considering that the distance between the power generation panel and the condensing pipe will affect the overall arrangement density of the condensing pipe, too small density of the condensing pipe will reduce the condensing efficiency of the condenser. Therefore, considering the power generation amount of the power generation surface and the overall condensing efficiency of the condenser, the vertical distance between the highest point of the power generation surface and the lowest point of the condensing finned pipe is set to 5-10 cm as the best interval.

[0077] Comparison Figure 2 In the structure of the liquid drop power generation unit 6, the condensate recovery groove and the power generation panels at the two ends share a stainless steel liquid drop power generation base 21 (the thickness of the base can be 2-4 mm), the bottom upper surface of the base has an arc-shaped protrusion, and the liquid drop power generation surface layer 22 is arranged on the upper surface of the base at the positions of the two power generation panels. The liquid drop power generation surface layer 22 is aligned and spliced together with the arc-shaped protrusion, so that the liquid drops falling on the surface of the liquid drop power generation surface layer can smoothly slide into the condensate recovery groove.

[0078] The liquid drop power generation unit effectively recovers the condensed liquid after impact through the condensate recovery groove, greatly reduces the falling process of the condensed liquid drops, and the probability of impact contact with the lower condensing finned pipe during the falling process (to prevent the falling liquid drops from further contacting the lower condensing finned pipe to cause corrosion), thereby further improving the overall corrosion resistance of the condenser.

[0079] The present application solves the major problems of weak corrosion resistance and low heat exchange efficiency of the condenser from the macroscopic level of condensing system design and the microscopic level of micro-nano structure manufacturing of condensing surface, and proposes a new concept of boiler flue gas condenser with high heat exchange efficiency and super strong corrosion resistance.

[0080] The intelligent temperature control vibration subsystem of the present application combines the heat exchange surface with the vibration device, shakes off the condensate of the heat exchange surface, and further promotes the removal frequency of the condensate drops on the surface of the condenser. In addition, by introducing the temperature control switch, the intelligent and fully automatic vibration process is realized by using the temperature change in the condenser when the condensation efficiency decreases. Finally, the liquid drop power generation system uses the contact electrification and electrostatic induction principle to establish a water drop generator based on the interface effect and switching effect to provide the required electric energy for the intelligent temperature control vibration subsystem, and realizes the recycling and reuse of the gravitational potential energy of the condensate drops. The subsystem is ingeniously combined with the patterned liquid drop condensation subsystem to maximize the power generation efficiency of the liquid drops.

[0081] The liquid drop power generation surface technology used in the embodiments of the present application is a mature existing technology, for example, see the document A Single-Droplet Electricity Generator Achieves an Ultrahigh Output Over 100 V Without Pre-Charging.

[0082] See Figure 4The droplet power generation surface layer 22 is mainly composed of an FEP film 27 (an ethylene propylene oxide film), a double-sided conductive cloth 28, and an aluminum sheet 26. When the water droplet contacts the solid surface, it begins to spread on the solid surface around the descending point, and the contact area of the solid-liquid interface gradually increases. After the contact area reaches its maximum value, the droplet begins to shrink with the decrease of the contact area, and the physical shape of the droplet also changes constantly. Finally, due to the surface tension, the dispersed droplets gather together and slide down through the aluminum sheet surface. The droplet can form a capacitance with the surface by using contact electrification and electrostatic induction during the movement of the droplet on the surface, and the droplet forms a droplet-FEP capacitance (CD / F), a droplet-aluminum sheet capacitance (CD / A), an FEP-conductive cloth capacitance (CF / C), and a conductive cloth-aluminum sheet capacitance (CC / A) when the droplet moves to different positions on the surface, and the charges carried in each capacitance will be charged and discharged between different capacitances with the movement of the droplet, further forming an electric current to power the external power supply. The thickness of the power generation surface is 100-300 pm, and the thickness of the aluminum sheet is about 80 pm. The power generation capacity of the power generation unit is related to the inclination of the power generation surface, the volume of the droplet, and the falling height of the droplet. Therefore, the inclination of the power generation surface is 15°-60°, the vertical distance between the highest point of the power generation panel and the lowest point of the condensing finned tube is 5-10 cm, and the volume of the droplet is determined by the pattern size parameters of the patterned droplet diode surface in the super-wetting patterned condensing sub-system.

[0083] Control Figures 3-4 The performance of the droplet 25, the super-hydrophobic surface 23 with the hydrophobic corrugated line 24, and the droplet power generation surface layer 22 is respectively shown.

[0084] The condensing working steps of the intelligent temperature control vibration flue gas condensing system are as follows:

[0085] 1) The flue gas after combustion is introduced into the flue gas inlet of the condenser inner container 3, the condensing water is introduced into the condensing agent inlet 17, the flue gas exchanges heat with the arrayed condensing finned tubes in the inner space of the condenser inner container 3, and the condensed water after heat exchange and temperature rise is discharged from the condensing agent outlet 10;

[0086] 2) The hydrophobic corrugated line 24 on the condensing finned tube serves as a hydrophobic nucleation site, and the easily condensable substances in the flue gas are condensed and nucleated on the hydrophobic nucleation site;

[0087] 3) With the continuous input of the flue gas, the condensate gradually increases on the nucleation site, and due to the existence of the super-hydrophobic surface 23, the condensate droplets are isolated from each other, forming a beaded condensation, and the temperature of the condensing water in the condensing finned tube increases, realizing the recycling of waste heat;

[0088] 4) With the re-input of flue gas, the volume of condensation droplets increases again, and the surface of the condensation finned tube is covered with a large number of condensation droplets, and part of the droplets increase in volume to reach the critical value of rolling resistance and roll off;

[0089] 5) At the same time, with the increase in the volume of condensation droplets, the heat transfer resistance of the condensation finned tube increases, the heat transfer efficiency decreases, and the outlet condensation water temperature of the condensation finned tube decreases;

[0090] 6) When the outlet condensation water temperature of the condensation finned tube decreases to the critical value of the temperature detected by the intelligent temperature control vibration subsystem and below, the temperature sensor 18 detects the temperature signal and transmits the signal to the temperature sensing vibration controller 16, which feeds back and controls the spring vibrator 14 to work, vibrates the condenser inner container 3, and promotes the condensation surface to drop the droplets of the condensation droplets, and the nucleation site is unloaded, and the flue gas is input again to realize the secondary circulation condensation of the flue gas;

[0091] 7) The condensation droplets contain a large number of ions and have good electrical conductivity, and the droplets fall on the droplet power generation unit 6 below the condensation finned tube after falling, and the gravitational potential energy is converted into electrical energy by the impact of the droplets, and the electrical energy is transmitted to the power supply through the wire and stored;

[0092] 8) The droplets after impacting the power generation surface roll into the condensation liquid recovery tank, and after being collected by the condensation liquid recovery tank, they flow into the condensation liquid recovery pool at the bottom of the condenser inner container 3 for recovery;

[0093] 9) The power switch controller of the power supply remains in an open state, and the power supply electrical energy is transmitted to the intelligent temperature control vibration subsystem through the wire to realize the self-powered closed cycle of the whole intelligent temperature control vibration flue gas condensation system.

[0094] Example 1:

[0095] 1. Processing of patterned super-hydrophobic / hydrophobic high-efficiency dropwise condensation surface:

[0096] The patterned surface is mainly prepared by spraying an adhesive and a fluorinated titanium dioxide suspension solution on the surface of a red copper finned tube and then ablation of the surface by a femtosecond laser to prepare a super-hydrophobic / hydrophobic high-efficiency dropwise condensation surface.

[0097] 1) Processing of super-hydrophobic surface by spraying method:

[0098] The required materials include nanoscale titanium dioxide particles (particle size 10-35 nm), anhydrous ethanol, ST-110, petroleum ether, polydimethylsiloxane prepolymer and curing agent, deionized water, etc., which are purchased from the National Pharmaceutical Group Chemical Reagent Co., Ltd., and the purity of the reagents is analytical grade. The substrate is a red copper fin and a center pipe (center pipe, i.e. base pipe) which are not assembled.

[0099] 77.5 cm2 The base surface is sprayed by mixing 1-2 g of titanium dioxide with 30-60 g of anhydrous ethanol to obtain a mixed solution A; the mixed solution A is ultrasonically treated for 1 hour to make the titanium dioxide completely dispersed; then, 900-2000 μL of ST-110 is added to the mixed solution A, and a magnetic stirrer is used for rapid stirring to obtain a mixed solution B; then, the mixed solution B is allowed to react at room temperature for 6 hours to prepare a fluoride-titanium dioxide suspension solution by hydrolysis and condensation of titanium dioxide and ST-110, wherein titanium dioxide is the solute, and anhydrous ethanol is the solvent, to obtain the mixed solution B of the fluoride-titanium dioxide suspension solution and ST-110.

[0100] 50-100 g of petroleum ether is used as a solvent, which is mixed with 5-10 g of polydimethylsiloxane (PDMS) and 0.5-1 g of a curing agent (ST-110), and a magnetic stirrer is used for rapid stirring for 10 minutes to make the three components quickly fused to obtain a mixed solution C.

[0101] Then, the mixed solution C is sprayed on the red copper fins and the central pipeline under the N2 pressure of 0.5 MPa by using a spray pen, the spraying time is 60 seconds, the thickness is 50-100 μm, the petroleum ether is rapidly evaporated at a high temperature of 90-110 °C to promote the curing of the PDMS, and after the spraying is completed, the high-temperature environment is kept for heating for 5 minutes to make the PDMS present a semi-cured state.

[0102] Then, the mixed solution B of the fluoride-titanium dioxide suspension solution and ST-110 is sprayed on the base of the red copper fins and the central pipeline, the spraying time is 60 seconds, and in the spraying process, the red copper fins and the central pipeline are fixed in a heating oven with a temperature of 100 °C to accelerate the evaporation of the solvent. The titanium dioxide forms a micro-nano structure on the surface of the base to prepare a super-hydrophobic coating.

[0103] The PDMS coating acts as an adhesive to bond the nano-titanium dioxide particles on the base by curing. The super-hydrophobic coating has a water droplet contact angle of 150° and a hysteresis angle of 5° in air. The super-hydrophobic coating has an oil droplet contact angle of 150° and a hysteresis angle of 5° in air. Thus, it has good hydrophobic / oil-repellent properties. The overall thickness of the super-hydrophobic coating is 140-270 μm.

[0104] The titanium dioxide and fluoride on the surface of the base make the surface have a low surface energy. Due to the high content of fluorine elements in the super-hydrophobic / super-oil-repellent coating, the super-hydrophobic / super-oil-repellent coating has a low surface energy, and has super-hydrophobic properties to organic solvents and water with low surface tension coefficients.

[0105] 2) Laser ablation method for processing hydrophobic nucleation sites:

[0106] The sprayed super-hydrophobic surface is ablated by femtosecond laser, and the fluorinated micro-nano structure of the super-hydrophobic surface is destroyed by high-temperature ablation to change the super-hydrophobic surface into an ordinary hydrophobic surface. First, the sprayed red copper fin and the center pipe are placed in the femtosecond laser processing area, and femtosecond laser ablation processing is performed, wherein the femtosecond laser power is 5-25W, the speed is 5-20mm / s, the nucleation site is processed into a corrugated droplet unidirectional flow diode surface with a width of 100-1000μm and a circular arc radius of 3-10mm by femtosecond laser ablation processing, and the interval between each nucleation site is 3-20mm. The water droplet contact angle of the ordinary hydrophobic coating in air is 80-100°, and the hysteresis angle is 10-20°, and the thickness of the ordinary hydrophobic coating is 60-220μm.

[0107] 3) Assembly and spraying of red copper fin and center pipe

[0108] After the super-hydrophobic / ordinary hydrophobic condensing surface of the red copper fin and the center pipe is processed, the red copper fin pipe is connected in series on the center pipe by welding. The welding method will destroy the super-hydrophobic / ordinary hydrophobic condensing surface characteristics at the welding site, so it is necessary to mask the processed super-hydrophobic / ordinary hydrophobic surface by mask method, expose the welding site of the fin pipe and the center pipe, and perform secondary super-hydrophobic spraying on the welding site by spraying method to repair the damaged site to super-hydrophobic, and realize the complete protection of the wetting characteristics of the surface.

[0109] 2. Processing of water droplet generator main surface:

[0110] The required materials include ethylene propylene oxide film (FEP), double-sided conductive cloth, aluminum sheet, deionized water, plastic base mold, wire

[0111] Preparation: FEP film (80-120μm) with strong electron-withdrawing ability is used as a solid contact surface, and the FEP film is first cleaned with deionized water and dried in an infrared oven at 60°C. In order to process the sensing electrode on the back of the FEP, we directly paste the double-sided conductive cloth on the FEP film. The thickness of the conductive area cloth is equal to the thickness of the FEP film, and the thickness is 100μm. In order to construct aluminum on the DEG, square aluminum strips with a thickness of 60-150μm are cut and processed by laser, and then assembled on the FEP film. Finally, the plastic base mold is made by 3D printing method, and the finished SEDEG device is connected with wires and fixed on the mold base.

[0112] The content described in the specification is only a list of forms of the inventive concept, and the protection scope of the invention should not be regarded as limited to the specific forms described in the examples.

Claims

1. A high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system, characterized in that The system comprises a condensing system, an intelligent temperature control vibration subsystem, and a liquid drop power generation system. The condensing system comprises a condenser inner container (3) and a condenser shell (4) arranged outside the condenser inner container (3). The left and right side walls of the condenser inner container (3) are respectively provided with a flue gas inlet and a flue gas outlet. An ultra-wetting patterned condensing subsystem is arranged inside the condenser inner container (3). The ultra-wetting patterned condensing subsystem comprises a plurality of horizontally arranged and sequentially connected condensing finned tubes (12) arranged inside the condenser inner container (3). The condensing finned tubes (12) are arranged in a horizontal row and vertical column array. The inlet of the first condensing finned tube is a condensing agent inlet (17) connected with a condensing agent inlet pipe. The outlet of the last condensing finned tube is a condensing agent outlet (10) connected with a condensing agent outlet pipe. The condensing finned tube comprises a base pipe (19) and a plurality of fins (20) arranged axially along the outer surface of the base pipe (19). The fins (20) are perpendicular to the outer surface of the base pipe (19). The outer surfaces of the base pipe (19) and the fins (20) are provided with an ultra-hydrophobic surface (23) and a plurality of three-dimensional wavy ordinary hydrophobic wavy lines (24) arranged in an array on the ultra-hydrophobic surface (23) by laser ablation. The ordinary hydrophobic wavy lines (24) on the outer surface of the fins (20) extend in the horizontal direction and are arranged in parallel in the vertical direction. The ordinary hydrophobic wavy lines (24) on the outer surface of the base pipe (19) extend axially and are arranged in parallel at uniform intervals in the circumferential direction. The condenser inner container (3) is externally provided with a power supply (15) for providing power to the intelligent temperature control vibration subsystem. The liquid drop power generation system comprises a plurality of liquid drop power generation units (6). Each liquid drop power generation unit (6) corresponds to a condensing finned tube. Each condensing finned tube is provided below with a liquid drop power generation unit (6). The condensed liquid drops on the condensing finned tube can reach the surface of the liquid drop power generation unit (6) to generate electricity. The electrical outputs of all the liquid drop power generation units (6) are connected in series by wires and connected to the power supply (15). The intelligent temperature control vibration subsystem comprises a temperature sensor (18), a temperature sensing vibration controller (16), and a spring vibrator (14). The temperature sensor (18) is used to monitor the condensing agent temperature of the condensing agent outlet (10). When the monitored temperature is lower than the critical temperature, the spring vibrator (14) is controlled to work through the temperature sensing vibration controller (16) feedback, so as to vibrate the condenser inner container (3) and make the condensed liquid drops on the outer surface of the condensing finned tube drop down.

2. The high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system according to claim 1, characterized in that The line width of the ordinary hydrophobic wavy line (24) is 100-1000 µm. The circular arc radius of the wavy line is 3-10 mm. The distance between two adjacent parallel ordinary hydrophobic wavy lines (24) is 3-20 mm.

3. The high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system according to claim 1, characterized in that U-shaped bent pipes (13) are sequentially connected together by welding between two adjacent condensing finned tubes. In this way, the condensing finned tubes are sequentially connected from the first to the last. The flue gas inlet and the flue gas outlet of the condenser inner container (3) are connected with the flue gas inlet (1) and the flue gas outlet (11) of the condenser shell (4) by flange stainless steel vacuum corrugated pipes (2) respectively, wherein the condenser inner container (3) is made of aluminum alloy material, and the fins (20) are made of red copper material, and the structure is a circular ring sheet structure.

4. The high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system according to claim 1, characterized in that The spring vibrator (14) comprises a vibrator motor (29), a crank (30), a connecting rod (31), a vibrating shaft (32) and a spring (33), the vibrator motor (29) is arranged on the top outer wall of the condenser shell (4), the output shaft of the vibrator motor (29) is connected with the crank (30), the crank (30) is connected with the connecting rod (31), the connecting rod (31) vertically penetrates through the connecting hole in the top of the condenser shell (4) and is connected with the upper end of the vibrating shaft (32) through a bearing, the lower end of the vibrating shaft (32) is fixedly connected with the top of the condenser inner container (3), and the two ends of the spring (33) are fixedly connected with the inner wall of the top of the condenser shell (4) and the outer wall of the top of the condenser inner container (3) respectively, and the spring (33) is arranged outside the vibrating shaft (32); When the vibrator motor (29) works, the crank (30) can be driven to rotate to drive the connecting rod (31) to move linearly in the vertical direction, and before the vibration work, the connecting rod (31) is located at the lowest point in the vertical direction; The temperature sensor (18) is signal connected with the vibrator motor (29) of the spring vibrator (14) through the temperature sensing vibration controller (16), the temperature sensor (18) transmits the monitored temperature data to the temperature sensing vibration controller (16), when the monitored temperature is lower than the set temperature, the temperature sensing vibration controller (16) feeds back a signal to the vibrator motor (29) of the spring vibrator (14) to work, controls the vibrating shaft (32) to pull the condenser inner container (3) to move upward, gives the condenser inner container (3) an initial displacement and compresses the spring, then the vibrator motor (29) stops running and releases the pulling force given to the condenser inner container (3), so that the spring drives the condenser inner container to move up and down reciprocatingly, and finally promotes the condensation liquid drops on the outer surface of the condensation finned tube to drop down.

5. The high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration flue gas condensing system according to claim 1, characterized in that The bottom of the condenser inner container (3) is provided with a condensate recovery port (7), and the bottom of the condenser shell (4) is further provided with a condensate recovery tank (8), the condensate recovery port (7) is connected with the top of the condensate recovery tank (8), and the condensate recovery tank (8) is used for recovering the condensate of the condensed flue gas; The liquid drop power generation unit (6) comprises two mirror-symmetrical inclined power generation panels, and the two power generation panels are connected through a V-shaped condensate recovery groove at the bottom, forming a power generation unit; each power generation unit is horizontally placed below a corresponding condensation finned tube, the length of the power generation unit extends in the same direction as the axial direction of the condensation finned tube, the length of the condensate recovery groove is greater than the axial length of the condensation finned tube, and the two ends of the condensate recovery groove are fixedly connected with the inner wall of the condenser inner container (3) through welding, and liquid outlet holes are arranged at the positions close to the inner wall of the condenser inner container (3) at the two ends of the condensate recovery groove. The condensed liquid drops on the condensing finned tube fall onto the surface of the power generation panel of the power generation unit to realize self-power generation, and then are collected in the condensate recovery tank. The liquid collected in the condensate recovery tank falls from the liquid outlet holes at both ends of the condensate recovery tank, and finally flows into the condensate recovery pool (8) through the condensate recovery port (7) for collection.

6. A high efficiency energy saving corrosion resistant intelligent temperature controlled vibratory flue gas condensing system as claimed in claim 5 wherein The inclination angle of the power generation panel with respect to the horizontal plane is 15-60°, and the vertical distance between the highest point of the power generation panel and the lowest point of the condensing finned tube is 5-10 cm.

7. A high efficiency energy saving corrosion resistant intelligent temperature controlled vibratory flue gas condensing system as claimed in claim 5 wherein In the structure of the liquid drop power generation unit (6), the condensate recovery tank and the power generation panels at both ends thereof share a stainless steel liquid drop power generation base (21). The bottom surface of the base has an arc-shaped protrusion, and the surface of the liquid drop power generation layer (22) arranged at the positions of the two power generation panels is arranged in alignment with the arc-shaped protrusion, so that the liquid drops falling on the surface of the liquid drop power generation layer can smoothly slide into the condensate recovery tank.

8. A high efficiency energy saving corrosion resistant intelligent temperature controlled vibratory flue gas condensing system as claimed in claim 1 wherein The raw materials for preparing the super-hydrophobic surface (23) include titanium dioxide and fluoride ST-110, and the feeding ratio of the two is 1-2 g:0.9-2 mL. The steps for preparing the super-hydrophobic surface (23) and the hydrophobic corrugated line (24) on the outer surface of the base pipe (19) or the fin (20) are as follows: S1: titanium dioxide is added to anhydrous ethanol and ultrasonically dispersed, then fluoride ST-110 is added, and stirred uniformly, and reacted at room temperature for 5-7 h to prepare a fluoride-titanium dioxide suspension solution through hydrolysis and condensation of titanium dioxide and ST-110; S2: polydimethylsiloxane (PDMS) and a curing agent are dispersed and mixed with petroleum ether as a solvent to obtain a PDMS mixed solution; S3: the PDMS mixed solution is sprayed on the outer surface of the base pipe (19) or the fin (20) using a spray pen, and the petroleum ether is rapidly evaporated at high temperature to promote the solidification of PDMS. After the spraying is completed, the PDMS is kept in a semi-solid state by heating in a high-temperature environment for 3-10 min; S4: then, the fluoride-titanium dioxide suspension solution is sprayed on the outer surface of the base pipe (19) or the fin (20) using a spray pen. During the spraying process, the base pipe (19) or the fin (20) is placed in an oven at 90-110°C to accelerate the evaporation of the solvent, and a micro-nano structure of titanium dioxide is formed on the surface of the base to prepare a super-hydrophobic coating. The contact angle of the super-hydrophobic coating with water droplets in air is 150°-165°, and the hysteresis angle is 4-6°. The thickness of the super-hydrophobic coating is 140-270 μm. S5: ablation is performed on the sprayed super-hydrophobic surface using a femtosecond laser, the fluorinated micro-nano structure of the super-hydrophobic surface is destroyed by high-temperature ablation, the super-hydrophobic surface is changed into an ordinary hydrophobic surface to form an ordinary hydrophobic coating, the water droplet contact angle of the ordinary hydrophobic coating in air is 80-100°, and the hysteresis angle is 10-20°, and the thickness of the ordinary hydrophobic coating is 60-220 μm; first, the sprayed base pipe (19) or fin (20) is placed in the femtosecond laser processing area, and ablation processing is performed using a femtosecond laser, wherein the femtosecond laser power is 5-25 W, and the speed is 5-20 mm / s, a plurality of mutually parallel hydrophobic corrugation lines (24) are formed by femtosecond laser ablation, the line width of the hydrophobic corrugation line (24) is between 100-1000 μm, the circular arc radius of the corrugation is 3-10 mm, and the spacing between two adjacent parallel hydrophobic corrugation lines (24) is 3-20 mm.

9. A high-efficiency energy-saving corrosion-resistant intelligent temperature control vibration smoke condensing system according to claim 8, characterized in that The preparation of the condensing finned tube also includes an assembly spraying step of the base pipe (19) and the fin (20), specifically as follows: after the super-hydrophobic surface-ordinary hydrophobic surface processing of the base pipe (19) and the fin (20) is completed, the fin (20) is vertically arranged equidistantly on the outer surface of the base pipe (19) and connected by welding; the welding method will destroy the super-hydrophobic surface-ordinary hydrophobic surface characteristics of the welding part, thereby the processed super-hydrophobic surface-ordinary hydrophobic surface is masked by mask method, the welding part is exposed, and the welding part is sprayed again to repair the damaged part, so as to realize the complete protection of the wetting characteristics of the surface.

10. A condensing method of a condensing system as defined in claim 1, characterized by The method comprises the following steps: 1) The flue gas after combustion is introduced into the flue gas inlet of the condenser inner container (3), the condensing water is introduced into the condensing agent inlet (17), and the flue gas exchanges heat with the arrayed condensing finned tube in the inner space of the condenser inner container (3), and the condensing water after heat exchange is discharged from the condensing agent outlet (10); 2) The ordinary hydrophobic corrugation line (24) on the condensing finned tube serves as a hydrophobic nucleation site, and the easily condensable substances in the flue gas are condensed and nucleated on the hydrophobic nucleation site; 3) With the continuous input of the flue gas, the condensate gradually increases on the nucleation site, and due to the presence of the super-hydrophobic surface (23), the condensate droplets are isolated from each other, forming bead-shaped condensation, and the temperature of the condensing water in the condensing finned tube increases, realizing the recycling of waste heat; 4) With the re-input of the flue gas, the volume of the condensate droplets increases again, the surface of the condensing finned tube is covered with a large number of condensate droplets, and part of the droplets increase in volume to reach the critical value of rolling resistance and roll off; 5) At the same time, with the increase in the volume of the condensate droplets, the heat exchange resistance of the condensing finned tube increases, the heat exchange efficiency decreases, and the temperature of the condensing water at the outlet of the condensing finned tube decreases; 6) When the temperature of the condensing finned tube outlet condensate is reduced to the critical value of the intelligent temperature control vibration subsystem detection temperature and below, the temperature sensor (18) detects the temperature signal and transmits the signal to the temperature sensing vibration controller (16), which feedbacks and controls the spring vibrator (14) to work, vibrates the condenser inner container (3), promotes the condensing surface bead condensation condensate droplets to drop, the nucleation site unloads, and the flue gas is continuously input again to realize the secondary circulation condensation of flue gas; 7) The condensate droplets contain a large number of ions and have good electrical conductivity. After the droplets drop, they fall on the liquid droplet power generation unit (6) below the condensing finned tube. The impact of the droplets converts the gravitational potential energy into electrical energy, which is stored in the power supply through the wire; 8) The liquid droplets after impact on the power generation surface roll into the condensate recovery tank. After being collected by the condensate recovery tank, they flow into the condensate recovery pool at the bottom of the condenser inner container (3) for recovery; 9) The power switch controller of the power supply remains in the open state. The power supply energy is transmitted to the intelligent temperature control vibration subsystem through the wire to realize the self-energy closed cycle of the whole intelligent temperature control vibration flue gas condensing system.

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