Automatic blowdown device of fuel gas steam generator
By using a suspension component and a turbine-driven automatic sewage discharge device, the problem of difficult removal of scale and foam on the liquid surface in the gas-fired steam generator is solved, achieving efficient automatic sewage discharge and ensuring steam quality and low-energy operation of the boiler.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHANG ZHOU LIAN HE GUO LU RONG QI YOU XIAN GONG SI
- Filing Date
- 2026-04-15
- Publication Date
- 2026-05-15
AI Technical Summary
During operation, existing gas-fired steam generators suffer from difficulty in accurately removing scale and foam from the liquid surface, which hinders heat transfer, reduces steam quality, and increases system energy consumption. Furthermore, existing automatic sewage discharge devices are complex and power-consuming, diminishing their energy-saving advantages.
An automatic sewage discharge device using a suspension component and a steam turbine drive automatically opens the discharge port by controlling the liquid level with a float ball. Combined with the steam flow driving the sewage discharge component to remove grease and foam from the liquid surface, a scraper mechanism loosens scale and promotes the rise of air bubbles, achieving automation and operation without external power.
It enables the timely removal of scale and impurities, ensuring steam quality, reducing maintenance costs, maintaining the boiler in a high-efficiency, low-consumption, and stable operating state, and avoiding heat waste and pipe corrosion.
Smart Images
Figure CN122041124A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of gas-fired steam generator technology, specifically to an automatic sewage discharge device for a gas-fired steam generator. Background Technology
[0002] During the operation of energy-saving boilers, after water is heated and evaporates, impurities such as calcium and magnesium ions, suspended solids, and grease in the water continuously concentrate and gradually form scale on the heating surface, and foam and oil film accumulate on the liquid surface. The low thermal conductivity of scale will seriously hinder heat transfer, leading to increased flue gas temperature and increased fuel consumption. Actual measurements show that a thickness of one millimeter of scale can reduce thermal efficiency by 5% to 8%. At the same time, the foam on the liquid surface will be carried into the heat-using equipment with the steam, causing steam quality deterioration, pipe corrosion and water hammer, further increasing system energy consumption and maintenance costs. Existing blowdown technologies mostly rely on manual, timed opening of the bottom blowdown valve. This not only makes it difficult to accurately control the timing of blowdown—blowing too early wastes heat and water, while blowing too late results in hardened scale buildup—but also fails to effectively remove floating grease and foam, causing the boiler to operate in an inefficient and energy-intensive state for extended periods. Some automatic blowdown devices rely on external power to drive sensors and electric valves, which not only increases system complexity and potential failure points, but also weakens the overall energy efficiency advantage of energy-saving boilers due to their own power consumption. Summary of the Invention
[0003] The purpose of this invention is to provide an automatic sewage discharge device for a gas-fired steam generator to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: A steam generator body is included. A suspension assembly for automatic material discharge is provided on one side of the inner cavity of the steam generator body. A sludge discharge assembly penetrating the steam generator body is arrayed on the side wall of the steam generator body. A discharge port is provided through one side of the bottom of the steam generator body. An exhaust pipe for conveying steam is provided through the top of the steam generator body. A steam turbine driven by outputting steam is provided within the inner cavity of the steam generator body. A mounting shaft extends from the bottom of the steam turbine, and connecting ropes are evenly installed on the bottom outer side of the mounting shaft. The connecting ropes are matched with the sludge discharge assembly. The sludge discharge assembly includes a discharge pipe penetrating the side wall of the steam generator body. A bent conveying pipe is fixedly installed at one end of the discharge pipe located inside the steam generator body.
[0005] Preferably, a movable collar is movably sleeved on the top of the conveying pipe, and a micro motor is fixedly installed at the center of the inner cavity of the movable collar. An exhaust fan is fixedly installed at the output end of the micro motor, and a feed plate is fixedly installed on the top of the movable collar.
[0006] Preferably, the feed plate has an inclined feed groove evenly distributed in the middle, and a sliding groove is symmetrically distributed in the middle of the feed plate about the feed groove. The feed plate is slidably sleeved with a slider through the sliding groove. A return spring is fixedly installed on the side wall of the two sets of sliders, and the other end of the return spring is fixedly connected to the inner side of the feed plate. A cleaning plate is fixedly installed on the top of the two sets of sliders. The top of the cleaning plate is fixedly connected to the connecting rope. The installation height of the feed plate is slightly higher than the liquid level in the inner cavity of the steam generator body.
[0007] Preferably, extension plates are fixedly installed on both sides of the conveying pipe, and a drive shaft is movably sleeved inside each of the two sets of extension plates. A drive plate is fixedly installed at the bottom of each of the two sets of drive shafts, and both ends of the bottom of the drive plate are arc-shaped.
[0008] Preferably, a spring sheet is provided between the two sets of drive shafts. The spring sheet is arc-shaped, and its bottom is fixedly connected to the top of the drive plate. A buffer spring is sleeved on the outer side of each set of drive shafts. The two ends of the buffer spring are fixedly connected to the top of the extension plate and the bottom of the feed plate, respectively.
[0009] Preferably, the suspension assembly includes a float that is suspended above the liquid surface in the inner cavity of the steam generator body. A telescopic rod is movably inserted through the top of the float, and a fixing pipe is fixedly installed at the top of the telescopic rod. The fixing pipe extends through the outside of the steam generator body to its top, and the top of the inner cavity of the fixing pipe is sealed.
[0010] Preferably, the upper half of the outer side of the float is equipped with a fixing rope array, and the other end of the fixing rope is fixedly connected to the top of the inner cavity of the steam generator body. The bottom of the outer side of the float is symmetrically equipped with connecting springs, and the other end of the connecting springs is fixedly connected to the inner cavity of the steam generator body.
[0011] Preferably, the inner cavity of the float is provided with a movable rod, the bottom of the movable rod is fixedly connected to the bottom of the inner cavity of the float, and the top of the movable rod extends to the outside through the telescopic rod and the fixed tube.
[0012] Preferably, a pull rope is fixedly installed at the bottom of the outer side of the float, a sealing plug is fixedly installed at the bottom of the pull rope, the bottom of the sealing plug is inclined, and a movable plug is fixedly installed at the bottom of the sealing plug. The side wall of the movable plug is provided with an inwardly recessed guide groove. The sealing plug extends through the discharge port to its inner side, and the sealing plug is sealed to the discharge port.
[0013] Preferably, the inner cavity of the steam generator body is symmetrically equipped with sealing connecting blocks, and a threaded shaft is rotatably sleeved between the two sets of sealing connecting blocks. A sliding shaft is threadedly sleeved on the outer side of the threaded shaft, and an arc-shaped scraper is fixedly installed at the bottom of the sliding shaft. The scraper extends to the bottom of the inner cavity of the steam generator body. A drive motor is fixedly installed at the bottom of one end of the steam generator body, and the output end of the drive motor passes through the steam generator body and one set of sealing connecting blocks and is fixedly connected to one end of the threaded shaft. The bottom of the inner side of the scraper is slightly higher than the bottom of the sealing plug. Therefore, when the scraper scrapes back and forth, it can lift the sealing plug to achieve active sewage discharge. The highest point of the sliding shaft is slightly higher than the bottom of the transmission plate. Therefore, when the sliding shaft reciprocates, it can also lift the transmission plate and push the transmission shaft and the feed plate to lift, thereby driving the movable collar, micro motor and exhaust fan to move upward. During the upward movement, the vibrating spring can also drive the liquid to move, which facilitates the rise of bubbles to the liquid surface and increases the movement of bubbles on the liquid surface, thus making it easier for bubbles to be discharged.
[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a suspension component to achieve automatic sewage discharge linked to liquid level. When scale and impurities cause the liquid level to rise, the float automatically opens the discharge port to promptly discharge the concentrated water and precipitated scale from the bottom, preventing scale from hardening and adhering. At the same time, the steam flow drives the turbine to drive the sewage discharge component, continuously removing grease and foam from the liquid surface, ensuring that the energy-saving boiler always operates under high-efficiency conditions.
[0015] 2. This invention, through the cooperation of a suspension component and a scraper, not only removes bottom scale but also loosens hard deposits on the heating surface; the sewage discharge component, driven by a steam turbine, draws in grease and foam floating on the liquid surface, effectively preventing foam from being carried into the heat-using equipment by the steam, avoiding problems such as pipe corrosion, water hammer, and steam carrying water, and ensuring the output of high-quality dry saturated steam; at the same time, the scraper lifts the transmission plate in its reciprocating motion, generating micro-vibrations through the spring sheet, promoting the rise of bubbles and enhancing heat transfer efficiency. No manual intervention is required, which not only avoids the waste of heat energy caused by improper operation but also significantly reduces maintenance costs, thereby ensuring that the energy-saving boiler always operates under low-consumption, stable, and long-life conditions. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the internal structure of the steam generator body of the present invention; Figure 3 This is a schematic diagram of the internal structure of the steam generator body of the present invention; Figure 4 This is a schematic diagram of the structure of the suspension component of the present invention; Figure 5This is a cross-sectional view of the connection structure of the float of the present invention; Figure 6 This is an exploded view of the sewage discharge component of the present invention; Figure 7 This is a cross-sectional view of the connection structure of the feed plate of the present invention.
[0017] In the attached diagram, the components represented by each number are as follows: 1. Steam generator body; 2. Drive motor; 3. Threaded shaft; 4. Sealing connection block; 5. Sliding shaft; 6. Scraper; 7. Discharge port; 8. Suspension assembly; 801. Float; 802. Fixing rope; 803. Telescopic rod; 804. Fixing tube; 805. Movable rod; 806. Connecting spring; 807. Pull rope; 808. Sealing plug; 809. Movable plug; 810. Feed chute; 9. Steam turbine; 10. Exhaust pipe; 11. Sewage discharge assembly; 1101. Conveying pipe; 1102. Extension plate; 1103. Drive shaft; 1104. Transmission plate; 1105. Spring; 1106. Discharge pipe; 1107. Buffer spring; 1108. Movable collar; 1109. Micro motor; 1110. Exhaust fan; 1111. Feed plate; 1112. Feed chute; 1113. Cleaning plate; 1114. Slider; 1115. Return spring; 1116. Slide groove; 12. Connecting rope. Detailed Implementation
[0018] 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.
[0019] This invention provides a technical solution: such as Figures 1-7An automatic sewage discharge device for a gas-fired steam generator is shown, comprising a steam generator body 1, a suspension component 8 for automatic discharge via suspension is provided on one side of the inner cavity of the steam generator body 1, sewage discharge components 11 penetrating the steam generator body 1 are arrayed on the side wall of the steam generator body 1, a discharge port 7 is provided through one side of the bottom of the steam generator body 1, an exhaust pipe 10 for conveying steam is provided through the top of the steam generator body 1, and a steam turbine 9 driven by outputting steam is provided in the inner cavity of the steam generator body 1. A mounting shaft extends from the bottom of the steam turbine 9, and connecting ropes 12 are evenly installed on the bottom of the outer side of the mounting shaft. The connecting ropes 12 are matched with the sewage discharge components 11. The sewage discharge components 11 include a discharge pipe 1106 penetrating the side wall of the steam generator body 1, and a bent conveying pipe 1101 is fixedly installed at one end of the discharge pipe 1106 located inside the steam generator body 1.
[0020] like Figure 2 , Figure 5 and Figure 6 As shown, a movable collar 1108 is movably sleeved on the top of the conveying pipe 1101, and a micro motor 1109 is fixedly installed at the center of the inner cavity of the movable collar 1108. An exhaust fan 1110 is fixedly installed at the output end of the micro motor 1109, and a feed plate 1111 is fixedly installed on the top of the movable collar 1108.
[0021] Furthermore, the feed plate 1111 has an inclined feed groove 1112 evenly distributed in the middle, and the feed plate 1111 has symmetrically distributed sliding grooves 1116 about the feed groove 1112 in the middle. The feed plate 1111 is slidably sleeved with a slider 1114 through the sliding groove 1116. The side walls of the two sets of sliders 1114 are fixedly installed with return springs 1115, and the other end of the return springs 1115 is fixedly connected to the inner side of the feed plate 1111. The top of the two sets of sliders 1114 is fixedly installed with a cleaning plate 1113. The top of the cleaning plate 1113 is fixedly connected to the connecting rope 12. The installation height of the feed plate 1111 is slightly higher than the liquid level in the inner cavity of the steam generator body 1.
[0022] Furthermore, extension plates 1102 are fixedly installed on both sides of the conveying pipe 1101. The drive shafts 1103 are movably sleeved inside the two sets of extension plates 1102. The drive plates 1104 are fixedly installed at the bottom of the two sets of drive shafts 1103. Both ends of the bottom of the drive plates 1104 are arc-shaped.
[0023] Furthermore, a spring piece 1105 is provided between the two sets of drive shafts 1103. The spring piece 1105 is arc-shaped, and the bottom of the spring piece 1105 is fixedly connected to the top of the drive plate 1104. A buffer spring 1107 is sleeved on the outside of both sets of drive shafts 1103. The two ends of the buffer spring 1107 are fixedly connected to the top of the extension plate 1102 and the bottom of the feed plate 1111, respectively. When the energy-saving boiler is in use, the steam boils and grease and foam are generated on the upper surface of the liquid level. First, the micro motor 1109 is started, and the exhaust fan 1110 fixedly installed at the output end of the micro motor 1109 exhausts the air into the movable collar 1108. The airflow draws the grease and foam on the liquid surface into the movable collar 1108 through the feed plate 1111 and the inclined feed chute 1112. Then, the grease and foam are continuously discharged through the conveying pipe 1101 and the discharge pipe 1106. As the turbine 9 rotates continuously, the mounting shaft fixed at its bottom pulls the connecting rope 12 to move, which in turn pulls the cleaning plate 1113 to slide along the slide groove 1116, thereby cleaning the feed plate 1111 and the feed trough 1112 to prevent them from getting blocked. This continues until the turbine 9 rotates one full rotation. At this point, because the connecting rope 12 is tilted and is limited by the return spring 1115, the connecting rope 12 will not get tangled after one full rotation. Under the action of the return spring 1115, it will also drive the cleaning plate 1113 to return to its original position.
[0024] like Figure 4 and Figure 5 As shown, the suspension assembly 8 includes a float 801 suspended above the liquid surface inside the steam generator body 1. A telescopic rod 803 is movably passed through the top of the float 801, and a fixing pipe 804 is fixedly installed on the top of the telescopic rod 803. The fixing pipe 804 extends through the outside of the steam generator body 1 to its top, and the top of the inner cavity of the fixing pipe 804 is sealed.
[0025] Furthermore, a fixing rope 802 is arrayed on the upper half of the outer side of the float 801, and the other end of the fixing rope 802 is fixedly connected to the top of the inner cavity of the steam generator body 1. A connecting spring 806 is symmetrically installed on the bottom of the outer side of the float 801, and the other end of the connecting spring 806 is fixedly connected to the inner cavity of the steam generator body 1.
[0026] Furthermore, the inner cavity of the float 801 is provided with a movable rod 805. The bottom of the movable rod 805 is fixedly connected to the bottom of the inner cavity of the float 801, and the top of the movable rod 805 extends to its outer side through the telescopic rod 803 and the fixed tube 804.
[0027] Furthermore, a pull rope 807 is fixedly installed on the bottom of the outer side of the float 801, a sealing plug 808 is fixedly installed on the bottom of the pull rope 807, the bottom of the sealing plug 808 is inclined, and a movable plug 809 is fixedly installed on the bottom of the sealing plug 808. The side wall of the movable plug 809 is provided with an inwardly recessed guide groove 810. The sealing plug 808 extends through the discharge port 7 to its inner side, and the sealing plug 808 is sealed to the discharge port 7. During use, as scale and other harmful substances continuously accumulate in the inner cavity of the steam generator body 1, the liquid level in the inner cavity will continuously rise with the accumulation of impurities. This will cause the float 801 to be lifted by the buoyancy of the liquid surface, which in turn stretches the connecting spring 806. At the same time, the pull rope 807 fixed at the bottom will pull the sealing plug 808 upward, causing the sealing plug 808 to separate from the discharge port 7. At this time, the impurities accumulated at the bottom of the inner cavity of the steam generator body 1 will be discharged through the discharge port 7 via the movable plug 809 and the guide groove 810 opened on its outer side, thereby realizing automatic sewage discharge operation, maintaining good steam quality, and extending the service life of the steam generator. After the impurities are discharged, the liquid level drops, and the float 801 is reset under the pull of the connecting spring 806. At the same time, the sealing plug 808 and the movable plug 809 are automatically reset under the pressure of the liquid level in the inner cavity of the steam generator body 1, sealing the discharge port 7, thus waiting for the next sewage discharge.
[0028] Furthermore, symmetrical sealing connection blocks 4 are installed in the inner cavity of the steam generator body 1. A threaded shaft 3 is rotatably sleeved between the two sets of sealing connection blocks 4. A sliding shaft 5 is threadedly sleeved on the outer side of the threaded shaft 3, and an arc-shaped scraper 6 is fixedly installed at the bottom of the sliding shaft 5. The scraper 6 extends to the bottom of the inner cavity of the steam generator body 1. A drive motor 2 is fixedly installed at the bottom of one end of the steam generator body 1, and the output end of the drive motor 2 passes through the steam generator body 1 and a set of sealing connection blocks 4 and is fixedly connected to one end of the threaded shaft 3. The bottom of the inner side of the scraper 6 is slightly higher than the bottom of the sealing plug 808. Therefore... When the scraper 6 scrapes back and forth, it can lift the sealing plug 808 to achieve active sewage discharge. The highest point of the sliding shaft 5 is slightly higher than the bottom of the transmission plate 1104. Therefore, when the sliding shaft 5 reciprocates, it can also lift the transmission plate 1104 and push the transmission shaft 1103 and the feed plate 1111 to lift up, thereby driving the movable collar 1108, the micro motor 1109 and the exhaust fan 1110 to move upward. During the upward movement, the vibrating spring 1105 can also drive the liquid to move, which makes it easier for bubbles to float to the liquid surface and increases the movement of bubbles on the liquid surface, thus making it easier for bubbles to be discharged.
[0029] Working principle: When the steam generator body 1 is working normally, water is heated and evaporated internally, and steam is output through the exhaust pipe 10 at the top. Driven by the steam flow, the steam turbine 9 installed near the exhaust pipe 10 begins to rotate. A mounting shaft extends from the bottom of the steam turbine 9, and connecting ropes 12 are evenly installed on the bottom outer side of the mounting shaft. The connecting ropes 12 are fixedly connected to the cleaning plates 1113 in each sewage discharge assembly 11. As the steam turbine 9 continues to rotate, the connecting ropes 12 periodically pull the cleaning plates 1113, causing the cleaning plates 1113 to slide on the surface of the feed plate 1111, cleaning the feed trough. Impurities that may clog the liquid surface are removed from the steam generator body 1112. Meanwhile, the micro motor 1109 in the sewage discharge assembly 11 drives the exhaust fan 1110 to rotate, generating negative pressure in the movable collar 1108 and the conveying pipe 1101. Light impurities such as grease and foam floating on the liquid surface are sucked into the movable collar 1108 through the inclined feed trough 1112, and then discharged to the outside of the steam generator body 1 through the conveying pipe 1101 and the discharge pipe 1106. This process uses the energy of the steam itself to drive the turbine 9 without external power, realizing the continuous and automatic removal of impurities from the liquid surface. Meanwhile, scale and other heavy impurities gradually accumulate at the bottom of the inner cavity of the steam generator body 1. When the impurities accumulate to a certain extent, the internal liquid level will rise accordingly. The float 801 in the suspension component 8 is suspended above the liquid surface. When the liquid level rises, the float 801 is lifted up, which in turn stretches the connecting spring 806 above and pulls the sealing plug 808 upward through the pull rope 807 at the bottom. The bottom of the sealing plug 808 is inclined and fixed with a movable plug 809. The side wall of the movable plug 809 has an inwardly recessed guide groove 810. After the sealing plug 808 is pulled up, it separates from the discharge port 7. The impurities accumulated at the bottom are automatically discharged from the discharge port 7 through the guide groove 810. When the impurities are discharged and the liquid level drops, the float 801 is reset under the tension of the connecting spring 806, and the sealing plug 808 re-seals the discharge port 7, waiting for the next sewage discharge. To further improve the sewage discharge effect, the bottom of the steam generator body 1 is also equipped with an auxiliary mechanical scraping mechanism. After the drive motor 2 starts, it drives the threaded shaft 3 to rotate. The sliding shaft 5, which is threaded onto the threaded shaft 3, moves back and forth along the sealing connection block 4, driving the arc-shaped scraper 6 at the bottom to scrape back and forth, pushing the hard scale attached to the bottom towards the discharge port 7. In addition, the highest point of the sliding shaft 5 is slightly higher than the bottom of the transmission plate 1104. Therefore, when the sliding shaft 5 moves back and forth, it will lift the transmission plate 1104, push the transmission shaft 1103 and the feed plate 1111 to move upward, thereby driving the movable collar 1108, the micro motor 1109 and the exhaust fan 1110 to rise as a whole. During the upward movement, the arc-shaped spring 1105 between the transmission shafts 1103 vibrates, promoting the bubbles inside the liquid to rise to the liquid surface, increasing the disturbance of the bubbles on the liquid surface, which is more conducive to the discharge of bubbles and foam, and enhancing the heat transfer and sewage discharge efficiency.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic sewage discharge device for a gas-fired steam generator, comprising a steam generator body (1), characterized in that: A suspension component (8) for automatic material discharge is provided on one side of the inner cavity of the steam generator body (1). A sewage discharge component (11) penetrating the steam generator body (1) is arranged on the side wall of the steam generator body (1). A discharge port (7) is provided through one side of the bottom of the steam generator body (1). An exhaust pipe (10) for conveying steam is provided through the top of the steam generator body (1). A steam turbine (9) driven by outputting steam is provided in the inner cavity of the steam generator body (1). An installation shaft extends from the bottom of the steam turbine (9). A connecting rope (12) is evenly installed on the bottom of the outer side of the installation shaft. The connecting rope (12) matches the sewage discharge component (11). The sewage discharge component (11) includes a discharge pipe (1106) penetrating the side wall of the steam generator body (1). A bent conveying pipe (1101) is fixedly installed at one end of the discharge pipe (1106) located inside the steam generator body (1).
2. The automatic sewage discharge device for a gas-fired steam generator according to claim 1, characterized in that: The top of the conveying pipe (1101) is movably sleeved with a movable collar (1108), and a micro motor (1109) is fixedly installed at the center of the inner cavity of the movable collar (1108). An exhaust fan (1110) is fixedly installed at the output end of the micro motor (1109), and a feed plate (1111) is fixedly installed at the top of the movable collar (1108).
3. The automatic sewage discharge device for a gas-fired steam generator according to claim 2, characterized in that: The feed plate (1111) has an inclined feed groove (1112) evenly distributed in the middle. The feed plate (1111) has a sliding groove (1116) symmetrically distributed in the middle about the feed groove (1112). The feed plate (1111) is slidably sleeved with a slider (1114) through the sliding groove (1116). The side walls of the two sets of sliders (1114) are fixedly installed with a return spring (1115), and the other end of the return spring (1115) is fixedly connected to the inner side of the feed plate (1111). The top of the two sets of sliders (1114) is fixedly installed with a cleaning plate (1113), and the top of the cleaning plate (1113) is fixedly connected to the connecting rope (12).
4. The automatic sewage discharge device for a gas-fired steam generator according to claim 3, characterized in that: Extension plates (1102) are fixedly installed on both sides of the conveying pipe (1101). A drive shaft (1103) is movably sleeved inside each of the two sets of extension plates (1102). A drive plate (1104) is fixedly installed at the bottom of each of the two sets of drive shafts (1103).
5. An automatic sewage discharge device for a gas-fired steam generator according to claim 4, characterized in that: A spring sheet (1105) is provided between the two sets of drive shafts (1103). The spring sheet (1105) is arc-shaped, and the bottom of the spring sheet (1105) is fixedly connected to the top of the drive plate (1104). A buffer spring (1107) is sleeved on the outside of both sets of drive shafts (1103). The two ends of the buffer spring (1107) are fixedly connected to the top of the extension plate (1102) and the bottom of the feed plate (1111), respectively.
6. The automatic sewage discharge device for a gas-fired steam generator according to claim 1, characterized in that: The suspension assembly (8) includes a float (801) suspended above the liquid surface inside the steam generator body (1). A telescopic rod (803) is movably inserted through the top of the float (801), and a fixing pipe (804) is fixedly installed on the top of the telescopic rod (803). The fixing pipe (804) extends through the outside of the steam generator body (1) to its top.
7. An automatic sewage discharge device for a gas-fired steam generator according to claim 6, characterized in that: The upper half of the outer side of the float (801) is equipped with a fixing rope (802), and the other end of the fixing rope (802) is fixedly connected to the top of the inner cavity of the steam generator body (1). The bottom of the outer side of the float (801) is symmetrically equipped with a connecting spring (806), and the other end of the connecting spring (806) is fixedly connected to the inner cavity of the steam generator body (1).
8. An automatic sewage discharge device for a gas-fired steam generator according to claim 7, characterized in that: The inner cavity of the float (801) is provided with a movable rod (805). The bottom of the movable rod (805) is fixedly connected to the bottom of the inner cavity of the float (801), and the top of the movable rod (805) extends to its outer side through the telescopic rod (803) and the fixed tube (804).
9. An automatic sewage discharge device for a gas-fired steam generator according to claim 8, characterized in that: A pull rope (807) is fixedly installed on the bottom of the outer side of the float (801). A sealing plug (808) is fixedly installed on the bottom of the pull rope (807). The bottom of the sealing plug (808) is inclined, and a movable plug (809) is fixedly installed on the bottom of the sealing plug (808). The side wall of the movable plug (809) is provided with an inwardly recessed guide groove (810). The sealing plug (808) extends through the discharge port (7) to its inner side, and the sealing plug (808) is sealed to the discharge port (7).
10. An automatic sewage discharge device for a gas-fired steam generator according to claim 1, characterized in that: The inner cavity of the steam generator body (1) is symmetrically equipped with sealing connecting blocks (4), and a threaded shaft (3) is rotatably sleeved between the two sets of sealing connecting blocks (4). A sliding shaft (5) is threadedly sleeved on the outer side of the threaded shaft (3), and an arc-shaped scraper (6) is fixedly installed at the bottom of the sliding shaft (5). The scraper (6) extends to the bottom of the inner cavity of the steam generator body (1). A drive motor (2) is fixedly installed at the bottom of one end of the steam generator body (1), and the output end of the drive motor (2) passes through the steam generator body (1) and one set of sealing connecting blocks (4) and is fixedly connected to one end of the threaded shaft (3).