A high life steam generator with delayed scale accumulation

Abstract

The application discloses a high-service-life steam generator capable of delaying scale accumulation and belongs to the technical field of steam generators. The steam generator capable of delaying scale accumulation comprises an evaporation box, a bottom of the evaporation box is fixedly connected with a base, and further comprises a first mounting pipe and a second mounting pipe which are rotatably connected at two ends of the evaporation box respectively, a first mounting box is fixedly connected to the first mounting pipe, a second mounting box is fixedly connected to the second mounting pipe, and a first shunt box is fixedly connected to the first mounting box. The scale particles falling on the heating pipe are scraped off by the reciprocating movement of the first scraper, the water in the evaporation box is made to flow by the rotating heating pipe and the moving first scraper, then the flowing water washes away the scale, and the scale is far away from the heating pipe, so that the adsorption of a large amount of scale on the heating pipe is avoided, the heat conductivity between the heating pipe and the water is reduced, the scale accumulation and adsorption are delayed, and the service life of the steam generator is prolonged.

Description

Technical Field

[0001] This invention relates to the field of steam generator technology, and in particular to a long-life steam generator that delays scale buildup. Background Technology

[0002] A steam generator requires a machine to boil water to produce high-pressure steam. Through the combustion process, water boils into steam, and the expansion of the steam pushes the piston to do work, thereby converting the energy of the steam into mechanical energy.

[0003] In existing technologies, when a steam generator boils water to evaporate it, some of the water evaporates after boiling. Calcium sulfate, which is not easily soluble, precipitates out. Calcium bicarbonate and magnesium bicarbonate, which were originally soluble, decompose in the boiling water, releasing carbon dioxide and turning into calcium carbonate and magnesium hydroxide, which are also difficult to dissolve and precipitate out. This forms scale, which adheres to the heating element, reducing its thermal conductivity and thus reducing evaporation efficiency. Furthermore, excessive scale buildup on the inner wall of the evaporator reduces the internal space. Therefore, it is necessary to design a steam generator with a longer service life that slows down scale accumulation. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where scale buildup reduces the internal space of the evaporator and lowers the thermal conductivity of the heating element. To achieve the above objectives, this invention adopts the following technical solution:

[0005] A long-life steam generator that delays scale buildup includes an evaporator, with a base fixedly connected to the bottom of the evaporator. It further includes: a first mounting pipe and a second mounting pipe rotatably connected to both ends of the evaporator; a first mounting box fixedly connected to the first mounting pipe, a second mounting box fixedly connected to the second mounting pipe, a first distribution box fixedly connected to the first mounting box, and a collection box fixedly connected to the second mounting box; multiple heating tubes fixedly connected to the first distribution box and the collection box; a first reciprocating screw, rotatably connected at both ends to the first and second mounting boxes respectively; a connecting plate threaded onto the first reciprocating screw; a first scraper fixedly connected to the connecting plate; and holes corresponding to the heating tubes on the first scraper; a conversion mechanism for rotating the first mounting pipe; and a transmission assembly for rotating the first reciprocating screw.

[0006] To facilitate the rotation of the first mounting pipe, preferably, the conversion mechanism includes an impeller fixedly connected to the top of the evaporator, the top of the evaporator having an exhaust port communicating with the input end of the impeller, and the output shaft of the impeller being synchronously connected to the first mounting pipe via a first sprocket assembly.

[0007] To facilitate the rotation of the first reciprocating lead screw, preferably, the transmission assembly includes a transmission shaft rotatably connected inside the first mounting box. The transmission shaft is synchronously connected to the first reciprocating lead screw via a second gear set. A sleeve is rotatably connected to the first mounting tube. The sleeve is fixedly connected to the inner wall of the evaporator and rotatably connected to the first mounting box. The sleeve is synchronously connected to the transmission shaft via a first gear set.

[0008] To facilitate the supply of oxygen and fuel gas to the heating tube, preferably, the first mounting tube extends to the outside of the evaporator and is rotatably connected to a third mounting box. A flange is fixedly connected to the side wall of the third mounting box, and an oxygen tube is fixedly connected to the top of the third mounting box. An air inlet is provided on the first mounting tube to cooperate with the oxygen tube. A second distribution box is fixedly connected inside the first distribution box, and a distribution pipe is fixedly connected to the second distribution box. The distribution pipe extends into the heating tube, and an air inlet pipe is fixedly connected to the second distribution box. The air inlet pipe is connected to the third mounting box through a rotating joint.

[0009] Preferably, a water tank is fixedly connected to the bottom of the evaporator, the water tank has a semi-circular cross-section, and high-pressure spray holes are provided on the side wall of the water tank.

[0010] To facilitate the scraping of scale from the bottom of the evaporator, preferably, a second reciprocating screw is rotatably connected inside the evaporator, and a second scraper is threaded onto the second reciprocating screw. The second scraper has slots corresponding to the outer wall of the water tank. There are four sets of the second reciprocating screw, and the four sets of the second reciprocating screw are synchronously connected through a third sprocket set. The second reciprocating screw is synchronously connected to the first mounting pipe through the second sprocket set.

[0011] To facilitate the removal of scale from the evaporator, preferably, a receiving trough is fixedly connected to the bottom of both ends of the evaporator. A first auger is connected to the receiving trough via a coupling. A drive unit for driving the first auger to rotate is provided on the receiving trough. A third mounting pipe is fixedly connected to the receiving trough. A second auger is rotatably connected to the third mounting pipe. A second motor is fixedly connected to the top of the third mounting pipe. The output end of the second motor is fixedly connected to the second auger. A storage pipe is fixedly connected to the side wall of the third mounting pipe. The storage pipe communicates with the third mounting pipe. A second sealing cap is threadedly connected to the bottom of the storage pipe.

[0012] To facilitate the cleaning of scale on the first auger, preferably, the drive unit includes a first sealing cover fixed to the receiving trough by bolts, a first motor fixedly connected to the first sealing cover, and the output end of the first motor fixedly connected to the drive end of the first auger.

[0013] To facilitate the utilization of the hot flue gas, preferably, a fourth mounting box is fixedly connected to the top of the evaporator, a first heat exchanger is fixedly connected inside the fourth mounting box, a connecting box is fixedly connected to the side wall of the evaporator, the connecting box is rotatably connected to the second mounting pipe, the connecting box is connected to the air inlet of the first heat exchanger through a second pipe, a first water pump is fixedly connected to the top of the fourth mounting box, the first water pump is connected to the water inlet of the first heat exchanger through a first pipe, a fifth mounting box is fixedly connected to the base, the top of the fifth mounting box is connected to the water tank through a fifth pipe, and a third pipe extending into the fifth mounting box and connected to the fifth pipe is fixedly connected to the drain end of the first heat exchanger.

[0014] To facilitate the utilization of heat energy in the discharged wastewater, preferably, a second heat exchanger is fixedly connected inside the fifth mounting box, a second water pump is fixedly connected to the base, the input end of the second water pump is connected to the bottom of the receiving tank through a first transmission pipe, the output end of the second water pump is connected to the high-temperature water inlet of the second heat exchanger through a fourth pipe, a three-way control valve is installed on the third pipe, the three-way control valve is connected to the low-temperature water inlet of the second heat exchanger through the second transmission pipe, and a fifth pipe is fixedly connected to the drainage end of the third pipe at the high-temperature water outlet of the second heat exchanger.

[0015] Compared with the prior art, the present invention provides a long-life steam generator that delays scale buildup and has the following beneficial effects:

[0016] 1. This long-life steam generator that delays scale buildup works by having a first scraper reciprocate to remove scale particles from the heating tubes. The rotating heating tubes and the moving first scraper cause the water in the evaporation tank to flow, and the flowing water washes away the scale, keeping it away from the heating tubes. This prevents a large amount of scale from adhering to the heating tubes, reducing the thermal conductivity between the heating tubes and the water, thus delaying scale buildup and extending the service life of the steam generator.

[0017] 2. This long-life steam generator, which delays scale buildup, preheats the supplementary water source with the heat from the flue gas, thereby reducing heat loss and saving energy required for heating. Meanwhile, the cold water absorbs the heat from the flue gas, thus cooling the flue gas and preventing the emission of high-temperature flue gas from polluting the environment.

[0018] 3. This long-life steam generator, which delays scale buildup, heats warm or cold water using the heat from the discharged wastewater. This rapidly cools the wastewater while simultaneously heating the replenishing water source, thus utilizing the heat energy in the discharged wastewater to further improve heat utilization and reduce energy consumption. Attached Figure Description

[0019] Figure 1 The main cross-sectional view of a long-service steam generator that delays scale buildup, as proposed in this invention, is shown below;

[0020] Figure 2 This is a right view of a steam generator with a long service life that delays scale buildup, as proposed in this invention.

[0021] Figure 3 This is a right sectional view of a steam generator with a long service life that delays scale buildup, as proposed in this invention.

[0022] Figure 4 This invention proposes a long-life steam generator that delays scale buildup. Figure 1 A schematic diagram of the structure of part A;

[0023] Figure 5 This invention proposes a long-life steam generator that delays scale buildup. Figure 1 A structural diagram of section B;

[0024] Figure 6 This invention proposes a long-life steam generator that delays scale buildup. Figure 1 A structural diagram of section C;

[0025] Figure 7 This invention proposes a long-life steam generator that delays scale buildup. Figure 1 A structural diagram of section D;

[0026] Figure 8 This invention proposes a long-life steam generator that delays scale buildup. Figure 3 A structural diagram of section E in the middle;

[0027] Figure 9 This invention proposes a long-life steam generator that delays scale buildup. Figure 3 A schematic diagram of the structure of part F in the middle.

[0028] In the diagram: 100, Evaporator; 101, Base; 102, Exhaust port; 201, First mounting pipe; 2011, First mounting box; 2012, Air inlet; 2013, Air inlet pipe; 2014, First distribution box; 2015, Second distribution box; 2016, Distribution pipe; 202, Second mounting pipe; 2021, Second mounting box; 2022, Collector box; 2023, Connecting box; 203, Third mounting box; 2031, Oxygen pipe; 204, Sleeve; 205, Drive shaft; 2051, First gear set; 2052, Second gear set; 206, First reciprocating screw; 207, Flange; 208, Heating pipe; 300, First scraper; 301, Connecting plate; 400, Impeller; 401, First sprocket assembly; 500. Receiving trough; 501. First auger; 502. First sealing cover; 503. Bolt; 504. First motor; 505. Third mounting pipe; 506. Second motor; 507. Second auger; 508. Storage pipe; 509. Second sealing cover; 600. Fourth mounting box; 601. First water pump; 602. First heat exchanger; 603. First pipe; 604. Second pipe; 605. Third pipe; 700. Second water pump; 701. Fourth pipe; 702. Fifth mounting box; 703. Second heat exchanger; 704. Fifth pipe; 800. Water tank; 801. High-pressure nozzle; 900. Second scraper; 901. Second reciprocating screw; 902. Second sprocket assembly; 903. Third sprocket assembly. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Example: Refer to Figures 1-9A long-life steam generator that delays scale buildup includes an evaporator 100, with a base 101 fixedly connected to the bottom of the evaporator 100. It also includes a first mounting pipe 201 and a second mounting pipe 202 rotatably connected to both ends of the evaporator 100. A first mounting box 2011 is fixedly connected to the first mounting pipe 201, and a second mounting box 2021 is fixedly connected to the second mounting pipe 202. A first distribution box 2014 is fixedly connected to the first mounting box 2011, and a collection box 2021 is fixedly connected to the second mounting box 2021. 22. Multiple heating tubes 208 are fixedly connected to the first distribution box 2014 and the collection box 2022; the first reciprocating screw 206 is rotatably connected at both ends to the first mounting box 2011 and the second mounting box 2021 respectively, and a connecting plate 301 is threadedly connected to the first reciprocating screw 206. A first scraper 300 is fixedly connected to the connecting plate 301, and the first scraper 300 has holes corresponding to the heating tubes 208; a conversion mechanism is used to rotate the first mounting tube 201; and a transmission assembly is used to rotate the first reciprocating screw 206.

[0032] The water inside the evaporator 100 is heated by the heating tube 208, causing it to evaporate. This evaporated water is then converted into mechanical energy by a conversion mechanism, driving the first mounting tube 201 to rotate. This mechanical energy is then further converted into mechanical energy by a transmission mechanism, causing the first reciprocating screw 206 to rotate. The two first reciprocating screws 206 rotate simultaneously, causing the first scraper 300 to reciprocate, scraping the surface of the heating tube 208. The first mounting tube 201 drives the first mounting box 2011 to rotate, which in turn drives the first distribution box 2014 and the first reciprocating screw 206 to rotate around the axis of the first mounting tube 201. The first reciprocating screw 206 drives the first scraper 300 to rotate, and the first diversion box 2014 drives the heating tube 208 to rotate. When the first scraper 300 moves back and forth, it scrapes off the scale particles that fall on the heating tube 208. The rotating heating tube 208 and the moving first scraper 300 make the water in the evaporator 100 flow. Then, the flowing water washes away the scale and keeps it away from the heating tube 208. This avoids the large amount of scale adsorbed on the heating tube 208, which reduces the heat transfer rate between the heating tube 208 and the water, thereby delaying the accumulation and adsorption of scale and extending the service life of the steam generator.

[0033] Reference Figures 1-6The conversion mechanism includes an impeller 400 fixedly connected to the top of the evaporator 100. The top of the evaporator 100 is provided with an exhaust port 102 that communicates with the input end of the impeller 400. The output shaft of the impeller 400 is synchronously connected to the first mounting pipe 201 through the first sprocket set 401. The transmission assembly includes a transmission shaft 205 rotatably connected to the first mounting box 2011. The transmission shaft 205 is synchronously connected to the first reciprocating screw 206 through the second gear set 2052. A sleeve 204 is rotatably connected to the first mounting pipe 201. The sleeve 204 is fixedly connected to the inner wall of the evaporator 100 and rotatably connected to the first mounting box 2011. The sleeve 204 is synchronously connected to the transmission shaft 205 through the first gear set 2051.

[0034] Water evaporates to form steam, which drives the impeller inside the impeller 400 to rotate, thereby rotating the output shaft of the impeller 400. The output shaft of the impeller 400 rotates the first mounting tube 201 via the first sprocket set 401. The first mounting tube 201 drives the first mounting box 2011 to rotate, which in turn drives the transmission shaft 205 to rotate around the axis of the first mounting tube 201. This is called rotation. When the transmission shaft 205 rotates, it generates a reaction force through the first gear set 2051 and the sleeve 204. This reaction force causes the transmission shaft 205 to rotate. The rotating transmission shaft 205 rotates through the second gear set 2052, causing the first reciprocating screw 206 to rotate. This causes the first scraper 300 to reciprocate and scrape the heating tube 208, removing the scale initially adsorbed on the heating tube 208. This prevents the scale from solidifying due to prolonged adsorption on the heating tube 208, thus preventing a decrease in the thermal conductivity of the heating tube 208.

[0035] Reference Figure 1 , Figure 4 and Figure 6 The first mounting pipe 201 extends to the outside of the evaporator 100 and is rotatably connected to the third mounting box 203. The side wall of the third mounting box 203 is fixedly connected to the flange 207. The top of the third mounting box 203 is fixedly connected to the oxygen pipe 2031. The first mounting pipe 201 is provided with an air inlet 2012 that matches the oxygen pipe 2031. The first distribution box 2014 is fixedly connected to the second distribution box 2015. The second distribution box 2015 is fixedly connected to the distribution pipe 2016, which extends into the heating pipe 208. The second distribution box 2015 is fixedly connected to the air inlet pipe 2013, which is connected to the third mounting box 203 through a rotating joint.

[0036] The third mounting box 203 is fixed by flange 207, and the exhaust end of its conveying device is connected to the rotary joint. The exhaust end of the oxygen conveying device or air conveying device is connected to the oxygen pipe 2031. Then, gas is added to the second distribution box 2015 through the air inlet pipe 2013. The gas is sent to multiple heating tubes 208 through the distribution pipe 2016. At the same time as the gas is being delivered, oxygen-containing combustion gas is delivered to the third mounting box 203 through the oxygen pipe 2031. The combustion gas enters the third mounting box 203 and enters the first mounting pipe 201 through the air inlet 2012. It then enters the first distribution box 2014 through the first mounting pipe 201 and is distributed to multiple heating tubes 208. Finally, it is ignited by an electronic ignition device installed inside the second distribution box 2015. This device is powered by a lithium battery, which is removable and can be replaced when the machine stops working. The electronic ignition device is wirelessly controlled.

[0037] Reference Figure 3 The bottom of the evaporator 100 is fixedly connected to a water tank 800. The cross-section of the water tank 800 is semi-circular, and a high-pressure spray hole 801 is opened on the side wall of the water tank 800.

[0038] By introducing water into the water tank 800 and continuously adding water to it, the water pressure inside the tank increases, causing water to be ejected from the high-pressure nozzle 801. The water ejected from the high-pressure nozzle 801 forms a water column that flows in the hot water. The water column carries scale towards both sides of the heating plate composed of heating tubes 208, causing it to settle from both sides. Furthermore, the height of the top of the water tank 800 can be set close to the bottom of the first mounting box 2011 and the second mounting box 2021, so that the water jet ejected from the water tank 800 can hit the heating tubes 208, thereby flushing away the scale near the heating tubes 208.

[0039] Reference Figure 1 , Figure 3 and Figure 7 The evaporator 100 is rotatably connected to a second reciprocating screw 901, and a second scraper 900 is threaded onto the second reciprocating screw 901. The second scraper 900 has a slot corresponding to the outer wall of the water tank 800. There are four sets of second reciprocating screws 901, and the four sets of second reciprocating screws 901 are synchronously connected through a third sprocket set 903. The second reciprocating screws 901 and the first mounting pipe 201 are synchronously connected through a second sprocket set 902.

[0040] When the first mounting pipe 201 rotates, it causes one or two of the second reciprocating screws 901 to rotate via the second sprocket set 902. The four second reciprocating screws 901 rotate synchronously via the third sprocket set 903, thereby causing the second scraper 900 to move smoothly back and forth inside the evaporator 100, thus scraping off the scale that falls on the inner wall of the bottom plate of the evaporator 100 and on the top of the water tank 800, thereby preventing scale from condensing inside the evaporator 100.

[0041] Reference Figures 1-3 , Figure 7 , Figure 8 and Figure 9 The bottom of both ends of the evaporator 100 is fixedly connected to a receiving trough 500. A first auger 501 is connected to the receiving trough 500 via a coupling. A drive unit for rotating the first auger 501 is provided on the receiving trough 500. A third mounting pipe 505 is fixedly connected to the receiving trough 500. A second auger 507 is rotatably connected to the third mounting pipe 505. A second motor 506 is fixedly connected to the top of the third mounting pipe 505. The output end of the second motor 506 is connected to… The second auger 507 is fixedly connected, and the side wall of the third mounting pipe 505 is fixedly connected to the storage pipe 508. The storage pipe 508 is connected to the third mounting pipe 505. The bottom of the storage pipe 508 is threadedly connected to the second sealing cover 509. The drive unit includes a first sealing cover 502 fixed to the receiving trough 500 by bolts 503. A first motor 504 is fixedly connected to the first sealing cover 502. The output end of the first motor 504 is fixedly connected to the drive end of the first auger 501.

[0042] The second scraper 900 reciprocates, scraping scale into the receiving troughs 500 located at the bottom of both ends of the evaporator 100. Then, the first motor 504 and the second motor 506 are started. The first motor 504 rotates the first auger 501, and the second motor 506 rotates the second auger 507. The first auger 501 pushes the scale that falls into the receiving trough 500 into the third mounting pipe 505, and the second auger 507 sends the scale out of the water surface and into the storage pipe 508 through a hole connected to the storage pipe 508 for storage. It should be noted that when the scale inside the storage pipe 508 accumulates to a certain extent, the second sealing cover 509 can be removed, and then the scale inside the storage pipe 508 can be cleaned. Normally, when steam is generated, the storage pipe 508 is sealed by the second sealing cover 509 to prevent steam leakage. It should also be noted that the bolt 503 can be removed to pull out the first auger 501, which facilitates cleaning of the receiving tank 500 and the first auger 501, thereby preventing a large amount of scale from adhering to the first auger 501 and inside the receiving tank 500.

[0043] Reference Figure 1The top of the evaporator 100 is fixedly connected to a fourth mounting box 600. The first heat exchanger 602 is fixedly connected inside the fourth mounting box 600. The side wall of the evaporator 100 is fixedly connected to a connecting box 2023. The connecting box 2023 is rotatably connected to the second mounting pipe 202. The connecting box 2023 is connected to the air inlet of the first heat exchanger 602 through the second pipe 604. The top of the fourth mounting box 600 is fixedly connected to a first water pump 601. The first water pump 601 is connected to the water inlet of the first heat exchanger 602 through the first pipe 603. The base 101 is fixedly connected to a fifth mounting box 702. The top of the fifth mounting box 702 is connected to the water tank 800 through the fifth pipe 704. The drain end of the first heat exchanger 602 is fixedly connected to a third pipe 605 that extends into the fifth mounting box 702 and is connected to the fifth pipe 704.

[0044] The flue gas generated by the combustion of gas inside the multiple heating tubes 208 is collected through the collection box 2022 and then enters the second installation pipe 202. Through the second installation pipe 202, it enters the connection box 2023 and then enters the first heat exchanger 602 through the second pipe 604. The first water pump 601 is started, and the first water pump 601 delivers cold water to the first heat exchanger 602 through the first pipe 603, so that the cold water exchanges heat with the heat generated by the flue gas. This utilizes the heat of the flue gas to preheat the supplementary water source, thereby reducing heat loss and saving the energy required for heating. Meanwhile, the cold water absorbs the heat of the flue gas, thereby cooling the flue gas and preventing the high-temperature flue gas from polluting the environment.

[0045] Reference Figure 1 The second heat exchanger 703 is fixedly connected inside the fifth installation box 702. The second water pump 700 is fixedly connected to the base 101. The input end of the second water pump 700 is connected to the bottom of the receiving tank 500 through the first transmission pipe. The output end of the second water pump 700 is connected to the high-temperature water inlet of the second heat exchanger 703 through the fourth pipe 701. A three-way control valve is installed on the third pipe 605. The three-way control valve is connected to the low-temperature water inlet of the second heat exchanger 703 through the second transmission pipe. The high-temperature water outlet of the second heat exchanger 703 is fixedly connected to the fifth pipe 704, which is connected to the drain outlet of the third pipe 605.

[0046] When no wastewater is being discharged, the third pipe 605 is connected to the water tank 800 via a three-way control valve, thereby sending water preheated by flue gas into the water tank 800 to add water to the evaporator 100. When wastewater is being discharged, the third pipe 605 is connected to the second transmission pipe via a three-way control valve, thereby sending warm water preheated by flue gas or cold water not preheated by flue gas into the second heat exchanger 703. Then, the second water pump 700 is started, and the second water pump 700 draws wastewater flowing from the evaporator 100 into the receiving tank 500 through the first transmission pipe and sends it into the second heat exchanger 703 through the fourth pipe 701. The heat of the wastewater is used to heat the warm or cold water, so that the wastewater cools down quickly while the replenished water source heats up quickly, thereby utilizing the heat energy in the discharged wastewater, thereby further improving the heat utilization rate and further reducing energy consumption.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A long-life steam generator that delays scale buildup, comprising an evaporator (100), wherein a base (101) is fixedly connected to the bottom of the evaporator (100), characterized in that, Also includes: Rotate the first mounting pipe (201) and the second mounting pipe (202) connected to both ends of the evaporator (100) respectively; A first mounting box (2011) is fixedly connected to the first mounting pipe (201), a second mounting box (2021) is fixedly connected to the second mounting pipe (202), a first distribution box (2014) is fixedly connected to the first mounting box (2011), a collection box (2022) is fixedly connected to the second mounting box (2021), and multiple heating tubes (208) are fixedly connected to the first distribution box (2014) and the collection box (2022). The first reciprocating lead screw (206) is rotatably connected at both ends to the first mounting box (2011) and the second mounting box (2021), respectively. A connecting plate (301) is threaded onto the first reciprocating lead screw (206), and a first scraper (300) is fixedly connected to the connecting plate (301). The first scraper (300) has a hole corresponding to the heating tube (208). A conversion mechanism is used to rotate the first mounting tube (201); A transmission assembly for rotating the first reciprocating screw (206); The conversion mechanism includes an impeller (400) fixedly connected to the top of the evaporator (100). The top of the evaporator (100) is provided with an exhaust port (102) that communicates with the input end of the impeller (400). The output shaft of the impeller (400) is synchronously connected to the first mounting pipe (201) through the first sprocket set (401). The transmission assembly includes a transmission shaft (205) rotatably connected within the first mounting box (2011). The transmission shaft (205) is synchronously connected to the first reciprocating screw (206) via a second gear set (2052). A sleeve (204) is rotatably connected to the first mounting tube (201). The sleeve (204) is fixedly connected to the inner wall of the evaporator (100). The sleeve (204) is rotatably connected to the first mounting box (2011). The sleeve (204) is synchronously connected to the transmission shaft (205) via a first gear set (2051).

2. The long-service-life steam generator that delays scale buildup according to claim 1, characterized in that, The first mounting pipe (201) extends to the outside of the evaporator (100) and is rotatably connected to the third mounting box (203). The side wall of the third mounting box (203) is fixedly connected to the flange (207). The top of the third mounting box (203) is fixedly connected to the oxygen pipe (2031). The first mounting pipe (201) is provided with an air inlet (2012) that cooperates with the oxygen pipe (2031). The first distribution box (2014) is fixedly connected to the second distribution box (2015). The second distribution box (2015) is fixedly connected to the distribution pipe (2016). The distribution pipe (2016) extends into the heating pipe (208). The second distribution box (2015) is fixedly connected to the air inlet pipe (2013). The air inlet pipe (2013) is connected to the third mounting box (203) through a rotating joint.

3. The long-service-life steam generator that delays scale buildup according to claim 1, characterized in that, A water tank (800) is fixedly connected to the bottom of the evaporator (100). The cross-section of the water tank (800) is semi-circular, and a high-pressure spray hole (801) is provided on the side wall of the water tank (800).

4. The long-service-life steam generator with delayed scale buildup according to claim 3, characterized in that, The evaporator (100) is rotatably connected to a second reciprocating screw (901), and a second scraper (900) is threaded onto the second reciprocating screw (901). The second scraper (900) has a slot corresponding to the outer wall of the water tank (800). There are four sets of the second reciprocating screw (901), and the four sets of the second reciprocating screw (901) are synchronously connected through a third sprocket set (903). The second reciprocating screw (901) is synchronously connected to the first mounting pipe (201) through a second sprocket set (902).

5. The long-service-life steam generator with delayed scale buildup according to claim 3, characterized in that, The bottom of both ends of the evaporator (100) is fixedly connected to a receiving trough (500). A first auger (501) is connected to the receiving trough (500) through a coupling. A driving part for driving the first auger (501) to rotate is provided on the receiving trough (500). A third mounting pipe (505) is fixedly connected to the receiving trough (500). A second auger (507) is rotatably connected to the third mounting pipe (505). A second motor (506) is fixedly connected to the top of the third mounting pipe (505). The output end of the second motor (506) is fixedly connected to the second auger (507). A storage pipe (508) is fixedly connected to the side wall of the third mounting pipe (505). The storage pipe (508) is connected to the third mounting pipe (505). A second sealing cap (509) is threadedly connected to the bottom of the storage pipe (508).

6. The long-service-life steam generator for delaying scale buildup according to claim 5, characterized in that, The drive unit includes a first sealing cover (502) fixed to the receiving trough (500) by bolts (503), a first motor (504) is fixedly connected to the first sealing cover (502), and the output end of the first motor (504) is fixedly connected to the drive end of the first auger (501).

7. The long-service-life steam generator for delaying scale buildup according to claim 5, characterized in that, A fourth mounting box (600) is fixedly connected to the top of the evaporator (100). A first heat exchanger (602) is fixedly connected inside the fourth mounting box (600). A connecting box (2023) is fixedly connected to the side wall of the evaporator (100). The connecting box (2023) is rotatably connected to the second mounting pipe (202). The connecting box (2023) is connected to the air inlet of the first heat exchanger (602) through a second pipe (604). The fourth mounting box (600) is fixedly connected to the top of the fourth mounting box (600). A water pump (601) is connected to the inlet of the first heat exchanger (602) via a first pipe (603). A fifth mounting box (702) is fixedly connected to the base (101). The top of the fifth mounting box (702) is connected to the water tank (800) via a fifth pipe (704). A third pipe (605) is fixedly connected to the drain end of the first heat exchanger (602), extending into the fifth mounting box (702) and connected to the fifth pipe (704).

8. The long-service-life steam generator with delayed scale buildup according to claim 7, characterized in that, The fifth mounting box (702) is fixedly connected to a second heat exchanger (703), and the base (101) is fixedly connected to a second water pump (700). The input end of the second water pump (700) is connected to the bottom of the receiving tank (500) through a first transmission pipe. The output end of the second water pump (700) is connected to the high-temperature water inlet of the second heat exchanger (703) through a fourth pipe (701). A three-way control valve is installed on the third pipe (605). The three-way control valve is connected to the low-temperature water inlet of the second heat exchanger (703) through a second transmission pipe. The high-temperature water outlet of the second heat exchanger (703) is fixedly connected to a fifth pipe (704) connected to the drain outlet of the third pipe (605).

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