Steam generator with preheating type intermittent water replenishing structure

Abstract

The invention discloses a steam generator with a preheating type intermittent water supplementing structure, and relates to the technical field of steam generators, the steam generator comprises a bottom bin, a shell is fixedly connected to the top of the bottom bin, a top bin is fixedly connected to the top of the shell, a water storage bin is arranged in the shell, and a combustion chamber is installed in the water storage bin; a steam guide pipe is fixedly connected to the interior of the shell and arranged on the outer side of the combustion chamber, a steam exhaust pipe is fixedly connected to one side of the top of the top bin, a preheating bin is arranged on one side of the bottom bin, a partition plate is installed at the bottom end in the preheating bin, a top plate is fixedly connected to the top end in the preheating bin, and a rotating plate is rotationally connected to the bottom of the top plate. According to the steam generator with the preheating type intermittent water supplementing structure, the situation that the temperature is suddenly lowered due to continuous water supplementing is avoided, and the thermal stability of a system and the fuel utilization efficiency are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of steam generator technology, specifically a steam generator with a preheating intermittent water replenishment structure. Background Technology

[0002] In the prior art, Chinese patent CN102087019B discloses a steam generator, which includes a steam generating chamber composed of a coil, a heat exchanger, and an electric heater. The heat exchanger is integrally formed with the electric heater by aluminum die casting and completely encapsulates the electric heater. The coil is formed by through holes in the heat exchanger. The electric heater is formed by a spirally wound electric heating tube or an inverted "U" shaped tube. The water inlet of the coil is symmetrically arranged with respect to the axis of the heat exchanger, forming a double-inlet structure.

[0003] Steam generators are widely used in industrial production and energy utilization, and their water supply method directly affects thermal efficiency and operational stability. Most of the aforementioned steam generators use a continuous water supply method. Directly introducing cold water into the storage tank can easily cause a sudden temperature drop, affecting steam production efficiency and system stability. This means that the heat originally intended for steam generation is used to heat the cold water, resulting in reduced effective heat output, increased fuel consumption, and a decrease in overall thermal efficiency. When cold water comes into contact with high-temperature metal surfaces (such as boiler drums, furnace shells, and pipe walls), it causes rapid localized cooling and contraction. Meanwhile, the surrounding uncooled metal areas remain in a state of high-temperature expansion. This uneven contraction generates significant thermal stress, potentially leading to microcracks in the metal materials. Long-term or frequent thermal shocks can cause fatigue damage, and in severe cases, even lead to equipment cracking, pipe rupture, and other accidents, significantly shortening the equipment's service life. Summary of the Invention

[0004] The purpose of this invention is to provide a steam generator with a preheating intermittent water supply structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A steam generator with a preheating intermittent water supply structure includes a bottom chamber, an outer shell fixedly connected to the top of the bottom chamber, a top chamber fixedly connected to the top of the outer shell, a water storage tank disposed inside the outer shell, a combustion chamber installed inside the water storage tank, a steam guide pipe fixedly connected inside the outer shell, the steam guide pipe being disposed outside the combustion chamber, an exhaust pipe fixedly connected to one side of the top of the top chamber, a preheating chamber disposed on one side of the bottom chamber, a partition plate installed at the bottom of the preheating chamber, a top plate fixedly connected to the top of the preheating chamber, and a rotating plate rotatably connected to the bottom of the top plate. The rotating plate has multiple water guide pipes fixedly connected in a ring array inside. Each of the multiple water guide pipes has a spiral water delivery pipe fixedly connected to its bottom end. The multiple spiral water delivery pipes are all spiral in shape and are stacked on top of each other. A solenoid valve is fixedly connected to the bottom end of each spiral water delivery pipe. A fixing frame is fixedly connected to the top of the top plate. A fixing sleeve is fixedly connected inside the fixing frame. A rotating sleeve is rotatably connected inside the fixing sleeve. A threaded rod is slidably connected inside the rotating sleeve. A connector is fixedly connected to the top end of the threaded rod. A threaded sleeve is fixedly connected to the top end of the fixing sleeve. A connecting pipe is fixedly connected to the top end of the threaded sleeve.

[0006] Preferably, the threaded rod passes through the threaded sleeve and is threadedly connected to the threaded sleeve. Both sides of the rotating sleeve are integrally formed with limiting plates, and both sides of the threaded rod are provided with limiting grooves. The two limiting plates are slidably connected to the two limiting grooves and are adapted to the two limiting grooves. By limiting the limiting grooves on both sides of the threaded rod through the limiting plates on both sides of the rotating sleeve, the rotating sleeve drives the threaded rod to rotate synchronously when rotating. The threaded sleeve limits the threaded rod, thereby allowing the threaded rod to rise or fall when rotating.

[0007] Preferably, the connecting pipe has a stepped water guiding cavity inside, and a sealing sleeve is fixedly connected inside the connecting pipe. The sealing sleeve is adapted to the connecting head, and multiple water inlets are opened on the side of the connecting head. The multiple water inlets are all connected to the inside of the threaded rod. After the connecting head and the sealing sleeve are fitted together, the water inlets are blocked and sealed. When the connecting head is separated from the sealing sleeve, water can enter the inside of the threaded rod from the water inlets for transmission.

[0008] Preferably, an arc-shaped groove is provided on one side of the top plate, a first arc-shaped rack is slidably connected to the top of the arc-shaped groove, a slider is fixedly connected to the bottom of the first arc-shaped rack, the slider passes through the arc-shaped groove and is slidably connected to the arc-shaped groove, and multiple sliding sleeves are fixedly connected in a circular array inside the rotating plate, and a push plate is slidably connected inside the sliding sleeves.

[0009] Preferably, a return spring is provided inside the sliding sleeve. The two sides of the return spring are fixedly connected to the push plate and the sliding sleeve, respectively. An inclined groove is opened on one side of the inside of the push plate. A positioning rod is fixedly connected to one end of the arc-shaped groove. The positioning rod corresponds to the inclined groove. When the sliding sleeve drives the push plate to move to the side of the positioning rod, the positioning rod pushes the push plate to move downward.

[0010] Preferably, an arc-shaped sleeve is fixedly connected to one side of the top of the top plate, and a piston plate is slidably connected inside the arc-shaped sleeve. The piston plate is adapted to the inner wall of the arc-shaped sleeve, and multiple through holes are opened inside the piston plate. Buffer solution is injected inside the arc-shaped sleeve so that the piston plate forms a damping effect when it moves inside the arc-shaped sleeve.

[0011] Preferably, a bent rod is fixedly connected to one side of the piston plate. The bent rod passes through the end wall of the arc-shaped sleeve and is slidably connected to the arc-shaped sleeve. A buffer spring is sleeved on the outside of the bent rod. A baffle is fixedly connected to the end of the bent rod away from the piston plate. The two ends of the buffer spring are fixedly connected to the baffle and the piston plate, respectively. A second arc-shaped rack is fixedly connected to one side of the baffle, so that the piston plate and the buffer spring cooperate to buffer the bent rod and the second arc-shaped rack, so that the second arc-shaped rack maintains stability when moving.

[0012] Preferably, a guide gear ring is fixedly connected to the outer side of the bottom of the rotating sleeve, and the first arc-shaped rack and the second arc-shaped rack are respectively meshed and connected to both sides of the guide gear ring, so that the second arc-shaped rack and the first arc-shaped rack drive the guide gear ring to rotate.

[0013] Preferably, a water pump is installed on one side of the top of the partition plate, and the water pump corresponds to a solenoid valve. A base plate is provided on the top of the partition plate, and multiple solenoid valves pass through the base plate and are fixedly connected to the base plate. A motor is fixedly connected to one side of the top of the partition plate, and a transmission gear is fixedly connected to the output end of the motor. A transmission gear ring is fixedly connected to the outside of the base plate. The transmission gear meshes with the transmission gear ring to make the base plate rotate, thereby driving multiple spiral water pipes and water guide pipes to rotate synchronously.

[0014] Preferably, a water inlet pipe is installed at the top of the connecting pipe, a tail gas pipe is installed at the top of one side of the preheating chamber, a water inlet pipe is installed at the bottom of one side of the preheating chamber, one end of the water inlet pipe is located at the bottom of the partition plate inside the preheating chamber, and the other end of the water inlet pipe passes through the side wall of the outer shell and is located inside the water storage tank. A gas supply pipe is installed on one side of the preheating chamber, and the gas supply pipe passes through the side wall of the top chamber and the combustion chamber and is fixedly connected to the top chamber and the combustion chamber. An ash box is provided inside the bottom chamber, and a feed pipe is installed on one side of the bottom of the combustion chamber, and the feed pipe passes through the side wall of the combustion chamber and the outer shell and is fixedly connected to the combustion chamber and the outer shell. A cover plate is hinged to one end of the ash box located on the outside of the bottom chamber.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This application uses a motor to drive a transmission gear and a transmission ring, which in turn rotates the base plate and multiple spiral water pipes arranged in a ring on it, aligning each water pipe sequentially with the water pump. The solenoid valves open and close at corresponding positions to control the quantitative drainage of each pipe. This design achieves strictly ordered intermittent water replenishment, avoiding sudden temperature drops caused by continuous water replenishment, significantly improving system thermal stability and fuel utilization efficiency, realizing precisely controlled intermittent water replenishment, and enhancing system responsiveness and energy efficiency.

[0016] 2. In this application, the spiral water supply pipes are arranged in a stacked spiral pattern within the preheating chamber, increasing the heating area. High-temperature exhaust gas is introduced into the preheating chamber through the gas supply pipe to fully preheat the water inside the spiral pipes. The preheated water is then pumped into the water storage tank via a water pump and a water inlet pipe. Its temperature is close to that of the water in the tank, greatly reducing the interference of replenishing cold water on the boiling process, shortening the time required to reach the working temperature again, improving the continuity and efficiency of steam generation, and utilizing high-temperature exhaust gas to preheat the replenishing water reduces the temperature difference when entering the water storage tank.

[0017] 3. This application utilizes the rotation of a rotating plate to drive the sliding sleeve and push plate, which in turn pushes the first arc-shaped rack. This, in turn, drives the rotating sleeve and threaded rod downwards via a guide gear ring, separating the connector from the sealing sleeve and opening the water passage. After water replenishment is complete, under the action of the buffer spring and the second arc-shaped rack, the threaded rod rotates in the opposite direction and rises, re-pressing the connector against the sealing sleeve for a seal. This process achieves automatic start and stop of water supply, and the mechanical seal effectively prevents leakage during non-water replenishment periods, reducing energy loss. The sealing structure ensures the sealing performance and reliability of the water replenishment process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the half-section structure of the present invention; Figure 3 This is a schematic diagram of the preheating chamber of the present invention; Figure 4 This is a schematic diagram of the structure of the partition plate of the present invention; Figure 5 This is a schematic diagram of the water pipe structure of the present invention; Figure 6 This is a schematic diagram of the spiral water conveyance pipe of the present invention; Figure 7 This is a schematic diagram of the connecting pipe of the present invention; Figure 8 This is a schematic diagram of the rotating sleeve of the present invention; Figure 9 This is a schematic diagram of the threaded rod of the present invention; Figure 10 This is a schematic diagram of the structure of the fixing frame of the present invention; Figure 11 This is a schematic diagram of the arc-shaped groove of the present invention; Figure 12 This is a schematic diagram of the structure of the rotating plate of the present invention; Figure 13 This is a schematic diagram of the structure of the first arc-shaped rack of the present invention; Figure 14 This is a schematic diagram of the push plate of the present invention; Figure 15 This is a schematic diagram of the arc-shaped sleeve of the present invention.

[0019] Numbered in the diagram: 1. Bottom compartment; 2. Outer shell; 3. Top compartment; 4. Water storage compartment; 5. Combustion chamber; 6. Steam guide pipe; 7. Exhaust pipe; 8. Preheating compartment; 9. Top plate; 10. Water guide pipe; 11. Spiral water conveying pipe; 12. Fixing frame; 13. Fixing sleeve; 14. Rotating sleeve; 15. Threaded rod; 16. Threaded sleeve; 17. Connector; 18. Connecting pipe; 19. Stepped water guide cavity; 20. Water inlet; 21. Limiting plate; 22. Limiting groove; 23. Sealing sleeve; 24. Guide toothed ring; 25. Arc groove; 26. First arc-shaped rack; 27. 1. Slider; 28. Positioning rod; 29. ​​Sliding sleeve; 30. Push plate; 31. Inclined groove; 32. Return spring; 33. Arc-shaped sleeve; 34. Piston plate; 35. Bending rod; 36. Baffle; 37. Second arc-shaped rack; 38. Buffer spring; 39. Base plate; 40. Transmission gear ring; 41. Water pump; 42. Motor; 43. Transmission gear; 44. Exhaust pipe; 45. Solenoid valve; 46. Water inlet pipe; 47. Divider plate; 48. Water intake pipe; 49. Gas transmission pipe; 50. Ash and slag box; 51. Feed pipe; 52. Cover plate; 53. Rotating plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: Figures 1-15As shown, the present invention provides a technical solution for a steam generator with a preheating intermittent water supply structure, including a bottom chamber 1, an outer shell 2 fixedly connected to the top of the bottom chamber 1, a top chamber 3 fixedly connected to the top of the outer shell 2, a water storage tank 4 disposed inside the outer shell 2, a combustion chamber 5 installed inside the water storage tank 4, a steam guide pipe 6 fixedly connected inside the outer shell 2, the steam guide pipe 6 being disposed outside the combustion chamber 5, an exhaust pipe 7 fixedly connected to one side of the top of the top chamber 3, a preheating chamber 8 disposed on one side of the bottom chamber 1, a partition plate 47 installed at the bottom of the preheating chamber 8, a top plate 9 fixedly connected to the top of the preheating chamber 8, and a rotating bottom plate 9. A rotating plate 53 is dynamically connected. Multiple water guide pipes 10 are fixedly connected in a circular array inside the rotating plate 53. Each of the multiple water guide pipes 10 has a spiral water delivery pipe 11 fixedly connected to its bottom end. The spiral water delivery pipes 11 are all spiral-shaped and stacked together. A solenoid valve 45 is fixedly connected to the bottom end of each spiral water delivery pipe 11. A fixing frame 12 is fixedly connected to the top of the top plate 9. A fixing sleeve 13 is fixedly connected inside the fixing frame 12. A rotating sleeve 14 is rotatably connected inside the fixing sleeve 13. A threaded rod 15 is slidably connected inside the rotating sleeve 14. A connector is fixedly connected to the top end of the threaded rod 15. 17. A threaded sleeve 16 is fixedly connected to the top of the fixed sleeve 13, and a connecting pipe 18 is fixedly connected to the top of the threaded sleeve 16. A threaded rod 15 passes through the threaded sleeve 16 and is threadedly connected to the threaded sleeve 16. Limiting plates 21 are integrally formed on both sides of the inside of the rotating sleeve 14. Limiting grooves 22 are opened on both sides of the threaded rod 15. The two limiting plates 21 are slidably connected to the two limiting grooves 22 and are adapted to the two limiting grooves 22. By limiting the limiting grooves 22 on both sides of the threaded rod 15 through the limiting plates 21 on both sides of the inside of the rotating sleeve 14, the rotating sleeve 14 drives the threaded rod 15 to rotate synchronously. The threaded sleeve 16 limits the threaded rod 15, allowing the threaded rod 15 to rise or fall during rotation. The connecting pipe 18 has a stepped water guiding cavity 19 inside, and a sealing sleeve 23 is fixedly connected inside the connecting pipe 18. The sealing sleeve 23 is adapted to the connector 17. The connector 17 has multiple water inlets 20 on its side, and all water inlets 20 are connected to the inside of the threaded rod 15. After the connector 17 and the sealing sleeve 23 are fitted together, the water inlets 20 are blocked and sealed. When the connector 17 is separated from the sealing sleeve 23, water can enter the inside of the threaded rod 15 from the water inlets 20 for transmission.

[0022] An arc-shaped groove 25 is provided on one side of the top plate 9. A first arc-shaped rack 26 is slidably connected to the top of the arc-shaped groove 25. A slider 27 is fixedly connected to the bottom of the first arc-shaped rack 26. The slider 27 passes through the arc-shaped groove 25 and is slidably connected to the arc-shaped groove 25. Multiple sliding sleeves 29 are fixedly connected in a ring array inside the rotating plate 53. A push plate 30 is slidably connected inside the sliding sleeve 29. A return spring 32 is provided inside the sliding sleeve 29. The two sides of the return spring 32 are fixedly connected to the push plate 30 and the sliding sleeve 29, respectively. An inclined groove 31 is provided on one side of the push plate 30. A positioning rod 28 is fixedly connected to one end of the arc-shaped groove 25. The positioning rod 28 corresponds to the inclined groove 31. When the sliding sleeve 29 moves the push plate 30 to the side of the positioning rod 28, the positioning rod 28 pushes the push plate 30 downward.

[0023] An arc-shaped sleeve 33 is fixedly connected to one side of the top plate 9. A piston plate 34 is slidably connected inside the arc-shaped sleeve 33. The piston plate 34 is adapted to the inner wall of the arc-shaped sleeve 33. Multiple through holes are opened inside the piston plate 34. Buffer is filled inside the arc-shaped sleeve 33 to create a damping effect when the piston plate 34 moves inside the arc-shaped sleeve 33. A bent rod 35 is fixedly connected to one side of the piston plate 34. The bent rod 35 passes through the end wall of the arc-shaped sleeve 33 and is slidably connected to the arc-shaped sleeve 33. A buffer spring 38 is sleeved on the outside of the bent rod 35. A baffle 36 is fixedly connected to the end of the bent rod 35 away from the piston plate 34. The two ends of the buffer spring 38 are fixedly connected to the baffle 36 and the piston plate 34 respectively. A second arc-shaped rack 37 is fixedly connected to one side of the baffle 36 so that the piston plate 34 and the buffer spring 38 cooperate to buffer the bent rod 35 and the second arc-shaped rack 37, so that the second arc-shaped rack 37 maintains stability when moving. A guide gear ring 24 is fixedly connected to the outer side of the bottom of the rotating sleeve 14. The first arc-shaped rack 26 and the second arc-shaped rack 37 are respectively meshed and connected to both sides of the guide gear ring 24, so that the second arc-shaped rack 37 and the first arc-shaped rack 26 drive the guide gear ring 24 to rotate.

[0024] A water pump 41 is installed on one side of the top of the partition plate 47. The water pump 41 corresponds to the solenoid valve 45. A base plate 39 is provided on the top of the partition plate 47. Multiple solenoid valves 45 pass through the base plate 39 and are fixedly connected to the base plate 39. A motor 42 is fixedly connected to one side of the top of the partition plate 47. A transmission gear 43 is fixedly connected to the output end of the motor 42. A transmission gear ring 40 is fixedly connected to the outside of the base plate 39. The transmission gear 43 meshes with the transmission gear ring 40, causing the base plate 39 to rotate, thereby driving multiple spiral water pipes 11 and water guide pipes 10 to rotate synchronously.

[0025] A water inlet pipe 46 is installed at the top of the connecting pipe 18. A tail gas pipe 44 is installed at the top of one side of the preheating chamber 8. A water inlet pipe 48 is installed at the bottom of one side of the preheating chamber 8. One end of the water inlet pipe 48 is located inside the preheating chamber 8 and is set at the bottom of the partition plate 47. The other end of the water inlet pipe 48 passes through the side wall of the outer shell 2 and is set inside the water storage tank 4. A gas supply pipe 49 is installed on one side of the preheating chamber 8. The gas supply pipe 49 passes through the side wall of the top chamber 3 and the combustion chamber 5 and is fixedly connected to the top chamber 3 and the combustion chamber 5. An ash box 50 is set inside the bottom chamber 1. A feed pipe 51 is installed on one side of the bottom of the combustion chamber 5. The feed pipe 51 passes through the side wall of the combustion chamber 5 and the outer shell 2 and is fixedly connected to the combustion chamber 5 and the outer shell 2. A cover plate 52 is hinged to one end of the ash box 50 located outside the bottom chamber 1.

[0026] In use, fuel is fed into the combustion chamber 5 through the feed pipe 51, and the combustion chamber 5 burns the fuel to heat the water in the water storage tank 4. Steam rises from the steam pipe 6 and is discharged from the exhaust pipe 7 for subsequent work. The high-temperature exhaust gas generated in the combustion chamber 5 enters the preheating chamber 8 through the gas supply pipe 49. When some of the water in the water storage tank 4 evaporates, water needs to be added to the water storage tank 4.

[0027] Water is supplied to the inside of the connecting pipe 18 through the inlet pipe 46, allowing the water to enter the stepped water guide cavity 19. At this time, the connector 17 and the sealing sleeve 23 are tightly fitted, preventing water from being supplied to the threaded rod 15. The motor 42 is then started, causing the motor 42 to drive the transmission gear 43 to rotate. When the transmission gear 43 rotates, it drives the transmission gear ring 40 to rotate. When the transmission gear ring 40 rotates, it drives the base plate 39 to rotate. When the base plate 39 rotates, it drives multiple solenoid valves 45 to rotate accordingly, thereby driving multiple spiral water supply pipes 11 and water guide pipes 10 to rotate synchronously. Then, the water guide pipe 10 drives the rotating plate 53 to rotate.

[0028] During the rotation of the rotating plate 53, the rotating plate 53 drives multiple sliding sleeves 29 to move synchronously. When the sliding sleeves 29 move, they drive the push plate 30 to move together, and the push plate 30 comes into contact with the slider 27, thereby causing the push plate 30 to push the slider 27 to move. When the slider 27 moves, it drives the first arc-shaped rack 26 to slide above the arc-shaped groove 25, causing the first arc-shaped rack 26 to drive the guide gear ring 24 to rotate. When the guide gear ring 24 rotates, it drives the rotating sleeve 14 to rotate, and the internal limit of the rotating sleeve 14... Position plate 21 limits the limiting groove 22, causing threaded rod 15 to rotate. Threaded sleeve 16 limits threaded rod 15, causing it to descend during rotation. As threaded rod 15 descends, it drives connector 17 to descend, disengaging connector 17 from sealing sleeve 23. Water from inlet pipe 46 enters threaded rod 15 and rotating sleeve 14 through inlet 20 from connecting pipe 18. At this time, rotating plate 53 remains in contact with top plate 9 during rotation, preventing water from draining from rotating sleeve 14. When rotating plate 53 drives the guide... After the water pipe 10 aligns with the rotating sleeve 14, the limiting groove 22 simultaneously descends to the bottom of the rotating sleeve 14 and connects with the water guide pipe 10, allowing water to enter the water guide pipe 10 from the threaded rod 15 and fill the spiral water conveying pipe 11. At this time, the high-temperature flue gas inside the preheating chamber 8 preheats the water inside the spiral water conveying pipe 11. The bottom plate 39 continues to rotate, driving the solenoid valve 45 at the bottom of the spiral water conveying pipe 11 to align with the water pump 41, causing the solenoid valve 45 to open and drain the water inside the spiral water conveying pipe 11 into the water pump 41, and then... The water pump 41 discharges water into the bottom of the partition plate 47, and the hot water at the bottom of the partition plate 47 is transferred to the water storage tank 4 through the water inlet pipe 48. When the hot water is added to the water storage tank 4, the temperature difference between the hot water and the inside of the water storage tank 4 is small, which improves the heating efficiency. Water can be circulated and injected into the preheating chamber 8 for preheating. Only after preheating is completed is the hot water transferred to the water storage tank 4 for operation. The intermittent water replenishment structure improves the heating efficiency of the water and ensures that the temperature difference between the water and the environment is small after the water enters the water storage tank 4, which is convenient for use. By setting up the preheating chamber 8, spiral water inlet pipe 11 and water guide pipe 10, the high-temperature exhaust gas generated by the combustion chamber 5 is used to preheat the incoming water. Then, the intermittent water replenishment is controlled by the solenoid valve 45 and the water pump 41, so that the temperature difference of the hot water entering the water storage tank 4 is small, the heating efficiency is high, and energy saving and environmental protection are achieved, realizing preheating intermittent water replenishment and improving thermal efficiency.

[0029] As the sliding sleeve 29 continues to move, it moves the push plate 30 to the side of the positioning rod 28, causing the positioning rod 28 to engage with the inclined groove 31. This pushes the push plate 30 to press against the return spring 32 and move downwards until the push plate 30 is completely retracted into the sliding sleeve 29. This disengages the push plate 30 from the slider 27, allowing the push plate 30 to continue moving at the bottom of the top plate 9. The top plate 9 blocks the push plate 30, preventing it from extending out of the sliding sleeve 29. When the push plate 30 disengages from the slider 27, the buffer spring 38 extends and pushes the baffle 36 and the second arc-shaped rack 37 to move. This causes the second arc-shaped rack 37 to push the guide gear ring 24 to rotate in the opposite direction, thereby causing the guide gear ring 24 to rotate in the opposite direction. The rotating sleeve 14 rotates in the opposite direction, causing the threaded rod 15 to rotate in the opposite direction. This causes the threaded rod 15 to lift the connector 17, which then re-engages with the sealing sleeve 23, sealing the threaded rod 15 and preventing further water flow, thus reducing leakage. When the second arc-shaped rack 37 moves, the bent rod 35 drives the piston plate 34 to slide inside the arc-shaped sleeve 33. The buffer solution injected inside the arc-shaped sleeve 33 flows through multiple through holes inside the piston plate 34, creating a damping effect. This, combined with the buffer spring 38, buffers the bent rod 35 and the second arc-shaped rack 37, thereby improving the stability of the second arc-shaped rack 37 during movement and the stability of the guide gear ring 24 during rotation. The motor 42 drives the transmission gear 43 and the transmission gear ring 40 to rotate, achieving synchronous rotation of multiple spiral water pipes 11 and automatic switching of water replenishment positions. Combined with the coordinated work of the solenoid valve 45 and the water pump 41, fully automatic intermittent water replenishment is achieved, reducing manual intervention, improving ease of use, and offering a high degree of automation and simple operation.

[0030] The motor 42 drives the transmission gear 43 and the transmission gear ring 40, which in turn rotates the base plate 39 and the multiple spiral water pipes 11 arranged in a ring on it, so that each water pipe is aligned with the water pump 41 in sequence. The solenoid valve 45 opens and closes at the corresponding position to control the quantitative drainage of each pipe. This design achieves strictly ordered intermittent water replenishment, avoids the sudden drop in temperature caused by continuous water replenishment, significantly improves the thermal stability and fuel utilization efficiency of the system, realizes precise control of intermittent water replenishment, and improves the system responsiveness and energy efficiency.

[0031] Spiral water pipes 11 are arranged in a stacked spiral shape within the preheating chamber 8, increasing the heating area. High-temperature exhaust gas is introduced into the preheating chamber 8 via gas pipe 49 to fully preheat the water inside the spiral pipes. The preheated water is then pumped into the water storage chamber 4 via water pump 41 and water inlet pipe 48. Its temperature is close to that of the water in the chamber, greatly reducing the interference of replenishing cold water on the boiling process, shortening the time required to reach the working temperature again, improving the continuity and efficiency of steam generation, and using high-temperature exhaust gas to preheat the replenishing water reduces the temperature difference when entering the water storage chamber 4.

[0032] The rotation of the rotating plate 53 drives the sliding sleeve 29 and the push plate 30 to move, pushing the first arc-shaped rack 26, which in turn drives the rotating sleeve 14 and the threaded rod 15 to descend via the guide gear ring 24, causing the connector 17 to separate from the sealing sleeve 23 and opening the water passage. After water replenishment is completed, under the action of the buffer spring 38 and the second arc-shaped rack 37, the threaded rod 15 rotates in the opposite direction and rises, and the connector 17 is pressed tightly against the sealing sleeve 23 again for sealing. This process realizes automatic start and stop of water supply, and the mechanical seal effectively prevents leakage during non-water replenishment periods, reduces energy loss, and the sealing structure ensures the sealing performance and reliability of the water replenishment process.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A steam generator with a preheating intermittent water supply structure, characterized in that: The system includes a bottom compartment (1), a shell (2) fixedly connected to the top of the bottom compartment (1), a top compartment (3) fixedly connected to the top of the shell (2), a water storage compartment (4) inside the shell (2), a combustion chamber (5) installed inside the water storage compartment (4), a steam guide pipe (6) fixedly connected inside the shell (2), the steam guide pipe (6) being located outside the combustion chamber (5), a steam exhaust pipe (7) fixedly connected to one side of the top of the top compartment (3), a preheating compartment (8) set on one side of the bottom compartment (1), a partition plate (47) installed at the bottom of the preheating compartment (8), a top plate (9) fixedly connected to the top of the preheating compartment (8), a rotating plate (53) rotatably connected to the bottom of the top plate (9), and multiple water guide pipes (1) fixedly connected in a ring array inside the rotating plate (53). 0), a spiral water pipe (11) is fixedly connected to the bottom end of a plurality of water pipes (10), the plurality of spiral water pipes (11) are all spiral in shape, the plurality of spiral water pipes (11) are stacked on each other, a solenoid valve (45) is fixedly connected to the bottom end of the spiral water pipe (11), a fixed frame (12) is fixedly connected to the top of the top plate (9), a fixed sleeve (13) is fixedly connected inside the fixed frame (12), a rotating sleeve (14) is rotatably connected inside the fixed sleeve (13), a threaded rod (15) is slidably connected inside the rotating sleeve (14), a connector (17) is fixedly connected to the top of the threaded rod (15), a threaded sleeve (16) is fixedly connected to the top of the fixed sleeve (13), and a connecting pipe (18) is fixedly connected to the top of the threaded sleeve (16).

2. A steam generator with a preheating intermittent water supply structure according to claim 1, characterized in that: The threaded rod (15) passes through the threaded sleeve (16) and is threadedly connected to the threaded sleeve (16). The rotating sleeve (14) has integrally formed limit plates (21) on both sides. The threaded rod (15) has limit grooves (22) on both sides. The two limit plates (21) are slidably connected to the two limit grooves (22) and are adapted to the two limit grooves (22).

3. A steam generator with a preheating intermittent water supply structure according to claim 1, characterized in that: The connecting pipe (18) has a stepped water guiding cavity (19) inside. A sealing sleeve (23) is fixedly connected inside the connecting pipe (18). The sealing sleeve (23) is adapted to the connector (17). The connector (17) has multiple water inlets (20) on its side. All of the multiple water inlets (20) are connected to the inside of the threaded rod (15).

4. A steam generator with a preheating intermittent water supply structure according to claim 1, characterized in that: An arc-shaped groove (25) is provided on one side of the top plate (9). A first arc-shaped rack (26) is slidably connected to the top of the arc-shaped groove (25). A slider (27) is fixedly connected to the bottom of the first arc-shaped rack (26). The slider (27) passes through the arc-shaped groove (25) and is slidably connected to the arc-shaped groove (25). Multiple sliding sleeves (29) are fixedly connected in a ring array inside the rotating plate (53). A push plate (30) is slidably connected inside the sliding sleeves (29).

5. A steam generator with a preheating intermittent water supply structure according to claim 4, characterized in that: The sliding sleeve (29) is provided with a return spring (32). The return spring (32) is fixedly connected to the push plate (30) and the sliding sleeve (29) on both sides respectively. The push plate (30) has a slanted groove (31) on one side. The arc groove (25) has a positioning rod (28) fixedly connected to one end. The positioning rod (28) corresponds to the slanted groove (31).

6. A steam generator with a preheating intermittent water supply structure according to claim 4, characterized in that: An arc-shaped sleeve (33) is fixedly connected to one side of the top plate (9). A piston plate (34) is slidably connected inside the arc-shaped sleeve (33). The piston plate (34) is adapted to the inner wall of the arc-shaped sleeve (33). Multiple through holes are opened inside the piston plate (34). Buffer solution is poured inside the arc-shaped sleeve (33).

7. A steam generator with a preheating intermittent water supply structure according to claim 6, characterized in that: A bent rod (35) is fixedly connected to one side of the piston plate (34). The bent rod (35) passes through the end wall of the arc-shaped sleeve (33) and is slidably connected to the arc-shaped sleeve (33). A buffer spring (38) is sleeved on the outside of the bent rod (35). A baffle (36) is fixedly connected to the end of the bent rod (35) away from the piston plate (34). The two ends of the buffer spring (38) are fixedly connected to the baffle (36) and the piston plate (34) respectively. A second arc-shaped rack (37) is fixedly connected to one side of the baffle (36).

8. A steam generator with a preheating intermittent water supply structure according to claim 7, characterized in that: The bottom outer side of the rotating sleeve (14) is fixedly connected to a guide tooth ring (24), and the first arc-shaped toothed rack (26) and the second arc-shaped toothed rack (37) are respectively meshed and connected to both sides of the guide tooth ring (24).

9. A steam generator with a preheating intermittent water supply structure according to claim 1, characterized in that: A water pump (41) is installed on one side of the top of the partition plate (47). The water pump (41) corresponds to the solenoid valve (45). A base plate (39) is provided on the top of the partition plate (47). Multiple solenoid valves (45) pass through the base plate (39) and are fixedly connected to the base plate (39). A motor (42) is fixedly connected to one side of the top of the partition plate (47). A transmission gear (43) is fixedly connected to the output end of the motor (42). A transmission gear ring (40) is fixedly connected to the outside of the base plate (39). The transmission gear (43) meshes with the transmission gear ring (40).

10. A steam generator with a preheating intermittent water supply structure according to claim 1, characterized in that: A water inlet pipe (46) is installed at the top of the connecting pipe (18), a tail gas pipe (44) is installed at the top of one side of the preheating chamber (8), a water inlet pipe (48) is installed at the bottom of one side of the preheating chamber (8), one end of the water inlet pipe (48) is located inside the preheating chamber (8) and is set at the bottom of the partition plate (47), and the other end of the water inlet pipe (48) penetrates the side wall of the outer shell (2) and is set inside the water storage tank (4), and a gas supply pipe (49) is installed on one side of the preheating chamber (8). The gas supply pipe (49) passes through the top chamber (3) and the side wall of the combustion chamber (5) and is fixedly connected to the top chamber (3) and the combustion chamber (5). The bottom chamber (1) is equipped with an ash box (50). The bottom end of the combustion chamber (5) is equipped with a feed pipe (51). The feed pipe (51) passes through the side wall of the combustion chamber (5) and the outer shell (2) and is fixedly connected to the combustion chamber (5) and the outer shell (2). The ash box (50) is hinged to a cover plate (52) at one end outside the bottom chamber (1).

Images