Steam heating system for boiler feed water temperature control

Abstract

The invention relates to the technical field of steam heating, in particular to a steam heating system for boiler feed water temperature control, which comprises a mounting seat, a scraping structure, a sealing structure, a water inlet structure, a stirring structure and a fixing structure, the arrangement of the water inlet structure enables a water source to enter the heating furnace in a stable and uniform state conveniently, the situation that the service life of the heating furnace is affected due to the fact that the water source with the too high flow speed impacts the heating furnace is avoided, the arrangement of the heating structure enables water in the heating furnace to be heated conveniently to generate steam, and the arrangement of the scraping structure enables dirt in the heating pipe to be scraped conveniently. The heat conduction effect is prevented from being affected due to the fact that a large amount of dirt is accumulated and adhered to the inner wall of the heating pipe, meanwhile, the cleaned dirt is conveniently cleaned through the arrangement of the collecting box, water is sufficiently disturbed through the arrangement of the stirring structure, the heat transfer efficiency is prevented from being affected by a water source in a non-uniform heating state, and meanwhile fuel consumption is prevented from being increased.

Description

Technical Field

[0001] The invention relates to the technical field of steam heating, in particular to a steam heating system for controlling boiler feed water temperature. Background Art

[0002] The steam heating system is a system that uses the thermal energy of steam to heat objects or spaces. It is widely used in many fields such as industry, commerce and civil use. The steam boiler is the core component of the steam heating system. Its working principle is that the fuel burns in the combustion chamber and the released heat is transferred to the water in the pot through the heat exchanger, causing the water to absorb heat and vaporize to form steam.

[0003] However, the water flow in the boiler is relatively slow and uneven. The water near the heat source area is heated faster and rises, while the water far from the heat source area heats up slowly, which can easily lead to large local water temperature differences. This uneven heating state will lead to reduced heat transfer efficiency, affecting the overall performance of the boiler and increasing fuel consumption. At the same time, the water inlet is mostly a straight tube structure. When the water flows into the boiler, the flow rate is too fast and the distribution is uneven, which can easily cause local impact and uneven heating, affecting the service life of the boiler. Moreover, since a series of complex chemical reactions and physical changes will occur when the burner burns fuel, the combustion products often contain a variety of impurity components, such as unburned carbon particles, sulfur oxides and metal oxides. These impurities will adhere to the inner wall of the heating chamber with the high-temperature flue gas and gradually accumulate to form dirt, affecting the thermal conductivity. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a steam heating system for controlling boiler feed water temperature.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a steam heating system for controlling boiler feed water temperature, comprising a mounting seat, a heating structure mounted on the mounting seat, a scraping structure mounted between the heating structure and the mounting seat, a water inlet structure mounted between the mounting seat and the heating structure, and a stirring structure mounted on the heating structure; The heating structure includes a heating furnace installed on the mounting seat and a burner installed on the heating furnace, a heating tube is installed in the heating furnace, a mounting box is fixedly connected to the heating furnace, a smoke exhaust box is installed on the mounting box, the scraping structure includes a scraping ring slidably connected to the heating tube and a sliding column fixedly connected to the scraping ring, the sliding column is slidably connected to the mounting box, a first hydraulic rod is installed on the mounting seat, a connecting rod is fixedly connected to the sliding column, the connecting rod is fixedly connected to the telescopic end of the first hydraulic rod, a collecting box is installed on the mounting box, a first frame is installed in the mounting box, a first filter is installed on the first frame, an air pump is installed on the mounting box, a connecting pipe is installed at the air intake of the air pump, and the other end of the connecting pipe is fixedly connected to the mounting box; A sealing structure is provided on the installation box, and the sealing structure includes a first sealing plate slidably connected to the installation box and a second hydraulic rod installed on the installation box, the first sealing plate is fixedly connected to the telescopic end of the second hydraulic rod, two second sealing plates are slidably connected to the installation box, and a fixing rod is fixedly connected between the two second sealing plates.

[0006] Specifically, a third hydraulic rod is installed on the installation box, the fixed rod is fixedly connected to the telescopic end of the third hydraulic rod, and a scraper is fixedly connected to the second sealing plate.

[0007] Specifically, the installation box is provided with a fixed structure, which includes a fixed block fixedly connected to the installation box and a rotating shaft rotatably connected to the fixed block, a connecting frame is fixedly connected to the rotating shaft, a slide is slidably connected to the connecting frame, a screw rod is rotatably connected to the slide rod, and the screw rod is threadedly connected to the connecting frame.

[0008] Specifically, a limiting groove is provided on the rotating shaft, a stop rod is fixedly connected to the fixed block, the rotating shaft contacts the stop rod, and a rotating rod is fixedly connected to the screw rod.

[0009] Specifically, the stirring structure includes four mounting shafts rotatably connected to the heating furnace and spiral blades fixedly connected to the mounting shafts. Pulleys are fixedly connected to the mounting shafts, and a belt is used to transmit power between every two pulleys.

[0010] Specifically, a connecting ring is rotatably connected in the heating furnace, and a scraper rod is fixedly connected to the connecting ring.

[0011] Specifically, a gear ring is fixedly connected to the connecting ring, and the gear ring is rotatably connected to the heating furnace. A gear is fixedly connected to one of the mounting shafts, and the gear is meshed with the gear ring.

[0012] Specifically, a connecting seat is installed on the heating furnace, and two motors are installed on the connecting seat, wherein the two installation shafts are fixedly connected to the output shafts of the two motors respectively.

[0013] Specifically, the water inlet structure includes a mounting plate fixedly connected to the mounting seat and a water pump installed on the mounting plate. A fixed pipe is installed at the water outlet of the water pump. A pipeline is fixedly connected to the fixed pipe. A plurality of branch pipes are fixedly connected to the pipeline. The branch pipes are fixedly connected to the heating furnace.

[0014] Specifically, a water baffle is fixedly connected inside the heating furnace, the cross section of the water baffle is a "U"-shaped structure, a connection box is installed at the water inlet of the water pump, a second frame is installed in the connection box, and a second filter is installed on the second frame.

[0015] The beneficial effects of the present invention are: (1) In the steam heating system for controlling the temperature of boiler feed water described in the present invention, a water inlet structure is provided between the mounting base and the heating structure. The arrangement of the water inlet structure facilitates the water source to enter the heating furnace in a relatively stable and uniform state, thereby preventing the water source from flowing too fast from impacting the heating furnace and affecting the service life of the heating furnace.

[0016] (2) The steam heating system for controlling the temperature of boiler feed water described in the present invention has a heating structure on the mounting seat, and a scraping structure between the heating structure and the mounting seat. The heating structure is convenient for heating water in the heating furnace to generate steam, and the scraping structure is convenient for scraping dirt in the heating tube to avoid a large amount of dirt accumulating and adhering to the inner wall of the heating tube to affect the heat conduction effect. At the same time, the collection box is convenient for cleaning the dirt.

[0017] (3) In the steam heating system for controlling boiler feed water temperature described in the present invention, a fixing structure is provided on the installation box. The setting of the fixing structure facilitates fixing between the collecting box and the installation box, thereby improving the stability between the collecting box and the installation box.

[0018] (4) In the steam heating system for controlling the temperature of boiler feed water described in the present invention, a stirring structure is provided on the heating structure. The stirring structure is arranged to fully disturb the water, thereby preventing the water source from being heated unevenly and affecting the heat transfer efficiency, and at the same time avoiding an increase in fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a steam heating system for controlling boiler feed water temperature provided by the present invention; Figure 2 It is a schematic diagram of the connection structure between the branch pipe and the heating furnace of the present invention; Figure 3 It is a schematic diagram of the connection structure between the second filter screen and the second frame of the present invention; Figure 4 It is a schematic diagram of the connection structure between the second sealing plate and the installation box of the present invention; Figure 5 It is a schematic diagram of the connection structure between the heating tube and the heating furnace of the present invention; Figure 6 for Figure 5 An enlarged schematic diagram of the structure of section A is shown; Figure 7 It is a schematic diagram of the connection structure between the collection box and the installation box of the present invention; Figure 8 It is a schematic diagram of the connection structure between the slide plate and the connection frame of the present invention; Fig. 9 for Figure 8 An enlarged schematic diagram of the structure of part B is shown; Fig.10 It is a schematic diagram of the connection structure between the gear ring and the gear of the present invention; Fig.11 It is a schematic diagram of the connection structure between the mounting shaft and the gear of the present invention; Fig.12 It is a schematic diagram of the connection structure between the spiral blade and the mounting shaft of the present invention.

[0021] In the figure: 1. mounting base; 2. heating structure; 201. heating furnace; 202. burner; 203. heating tube; 204. mounting box; 205. smoke exhaust box; 3. scraping structure; 301. scraping ring; 302. sliding column; 303. connecting rod; 304. first hydraulic rod; 305. collecting box; 306. first frame; 307. first filter; 308. air pump; 309. connecting pipe; 4. sealing structure; 401. first sealing plate; 402. second hydraulic rod; 403. second sealing plate; 404. fixing rod; 405. third hydraulic rod; 406. scraper; 5. water inlet structure; 501. Mounting plate; 502, water pump; 503, fixed pipe; 504, pipeline; 505, branch pipe; 506, water retaining plate; 507, connecting box; 508, second frame; 509, second filter; 6, stirring structure; 601, mounting shaft; 602, spiral blade; 603, pulley; 604, connecting seat; 605, motor; 606, connecting ring; 607, scraper rod; 608, gear ring; 609, gear; 7, fixed structure; 701, fixed block; 702, rotating shaft; 703, connecting frame; 704, slide plate; 705, screw rod; 706, rotating rod; 707, limiting groove; 708, retaining rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.10 and Fig.12 As shown, a steam heating system for boiler feed water temperature control described in the present invention comprises a mounting seat 1, a heating structure 2 mounted on the mounting seat 1, a scraping structure 3 mounted between the heating structure 2 and the mounting seat 1, a water inlet structure 5 mounted between the mounting seat 1 and the heating structure 2, and a stirring structure 6 mounted on the heating structure 2; the heating structure 2 comprises a heating furnace 201 mounted on the mounting seat 1 and a burner 202 mounted on the heating furnace 201, a heating pipe 203 is installed in the heating furnace 201, a mounting box 204 is fixedly connected to the heating furnace 201, a smoke exhaust box 205 is installed on the mounting box 204, the scraping structure 3 comprises a scraping ring 301 slidably connected to the heating pipe 203 and a sliding column 302 fixedly connected to the scraping ring 301, the sliding column 302 is slidably connected to the mounting box 204, a first hydraulic rod 304 is installed on the mounting seat 1, and the sliding column 305 is installed on the mounting box 204. A connecting rod 303 is fixedly connected to 302, and the connecting rod 303 is fixedly connected to the telescopic end of the first hydraulic rod 304, a collecting box 305 is installed on the installation box 204, a first frame 306 is installed in the installation box 204, a first filter screen 307 is installed on the first frame 306, an air pump 308 is installed on the installation box 204, a connecting pipe 309 is installed at the air intake port of the air pump 308, and the other end of the connecting pipe 309 is fixedly connected to the installation box 204; a sealing structure 4 is provided on the installation box 204, and the sealing structure 4 includes a first sealing plate 401 slidably connected to the installation box 204 and a second hydraulic rod 402 installed on the installation box 204, the first sealing plate 401 is fixedly connected to the telescopic end of the second hydraulic rod 402, two second sealing plates 403 are slidably connected to the installation box 204, and a fixing rod 404 is fixedly connected between the two second sealing plates 403.

[0024] Specifically, Figure 6 and Figure 7As shown, a third hydraulic rod 405 is installed on the installation box 204, and the fixed rod 404 is fixedly connected to the telescopic end of the third hydraulic rod 405. A scraper 406 is fixedly connected to the second sealing plate 403. When water enters the heating furnace 201, the burner 202 can be started. When the burner 202 is started, the heating pipe 203 will be heated. The heated heating pipe 203 will heat the water in the heating furnace 201. The heating furnace 201 will work in coordination with the temperature sensor, controller, steam-water heat exchanger and other components in the entire steam heating system. The generated steam is transmitted to the steam-water heat exchanger through the steam pipeline. In the steam-water heat exchanger, the heat of the steam is transferred to the boiler feed water, thereby realizing the heating of the feed water. At the same time, in order to achieve effective control of the feed water temperature, it is necessary to adjust the steam flow rate through the controller according to factors such as the steam output of the heating furnace 201, steam parameters (such as temperature, pressure) and the heat exchange of the steam-water heat exchanger to achieve the purpose of controlling the feed water temperature. When it is necessary to scrape the dirt in the heating tube 203, the first hydraulic rod 304 can be started. When the telescopic end of the first hydraulic rod 304 is extended, the connecting rod 303 is driven to move. When the connecting rod 303 moves, the sliding column 302 is driven to move. When the sliding column 302 moves, it will drive the scraper ring 301 to slide in the heating tube 203 to scrape the dirt on the inner wall of the heating tube 203. While scraping, the third hydraulic rod 405 can be started. When the telescopic end of the third hydraulic rod 405 is retracted, the third hydraulic rod 405 can be started. The fixed rod 404 is driven to move, and the movement of the fixed rod 404 drives the two second sealing plates 403 to move. When the second sealing plates 403 slide, the scraper 406 is driven to move. When the scraper 406 moves, the dirt on the first filter screen 307 is scraped off. When the second sealing plate 403 slides to a certain position, the second hydraulic rod 402 can be started. When the telescopic end of the second hydraulic rod 402 is extended, it drives the first sealing plate 401 to move upward. When the first sealing plate 401 slides upward to a certain position, the air pump 308 can be started at this time. When the air pump 308 is running, the cleaned dirt will move to the first filter screen 307, so that the dirt is adsorbed on the first filter screen 307. At this time, because the two second sealing plates 403 slide to the top of the collection box 305 The bottom of the smoke exhaust box 205 is covered to make the air pump 308 have better adsorption force. At the same time, the setting of the second sealing plate 403 below can prevent the dirt in the collection box 305 from being adsorbed on the first filter 307 again. At the same time, when the cleaning is completed, the second sealing plate 403 can no longer be covered, and then the air pump 308 can be turned off to make the dirt on the first filter 307 fall into the collection box 305. The scraper ring 301 is used to scrape the dirt in the heating tube 203 to avoid a large amount of dirt accumulating and adhering to the inner wall of the heating tube 203 to affect the heat conduction effect. At the same time, the setting of the collection box 305 facilitates the cleaning of the cleaned dirt, and the setting of the first sealing plate 401 can prevent smoke and dust from floating out of the air pump 308.

[0025] Specifically, Figure 1 , Figure 6 , Figure 8 and Fig. 9 As shown, the installation box 204 is provided with a fixed structure 7, and the fixed structure 7 includes a fixed block 701 fixedly connected to the installation box 204 and a rotating shaft 702 rotatably connected to the fixed block 701, a connecting frame 703 is fixedly connected to the rotating shaft 702, a slide plate 704 is slidably connected in the connecting frame 703, a screw rod 705 is rotatably connected to the slide plate 704, and the screw rod 705 is threadedly connected to the connecting frame 703, a limiting groove 707 is provided on the rotating shaft 702, a blocking rod 708 is fixedly connected to the fixed block 701, the rotating shaft 702 conflicts with the blocking rod 708, and a rotating rod 706 is fixedly connected to the screw rod 705. When the collection box 305 needs to be removed from the installation box 305, When the box 204 is removed, the screw rod 705 can be driven to rotate by the rotating rod 706, and the screw rod 705 will cooperate with the thread of the connecting frame 703 to drive the slide plate 704 to slide in the connecting frame 703, so that the slide plate 704 is no longer tightly against the collection box 305. At this time, the connecting frame 703 can be used to drive the rotating shaft 702 to rotate. After the rotating shaft 702 rotates 180 degrees, the limiting groove 707 on the rotating shaft 702 will cooperate with the blocking rod 708 to block the rotating shaft 702. At this time, the collection box 305 can be pulled out, and the slide plate 704 is driven by the screw rod 705 to contact the collection box 305, which is convenient for fixing the collection box 305 and the installation box 204, thereby improving the stability between the collection box 305 and the installation box 204.

[0026] Specifically, Figure 2 , Figure 5 , Fig.10 , Fig.11 and Fig.12As shown, the stirring structure 6 includes four mounting shafts 601 rotatably connected to the heating furnace 201 and spiral blades 602 fixedly connected to the mounting shafts 601, a pulley 603 is fixedly connected to the mounting shafts 601, and a belt is driven between every two pulleys 603, a connecting ring 606 is rotatably connected to the heating furnace 201, a scraper rod 607 is fixedly connected to the connecting ring 606, a gear ring 608 is fixedly connected to the connecting ring 606, and the gear ring 608 is rotatably connected to the heating furnace 201, one of the mounting shafts 601 is fixedly connected to a gear 609, and the gear 609 meshes with the gear ring 608, a connecting seat 604 is installed on the heating furnace 201, and two motors 605 are installed on the connecting seat 604, wherein the two mounting shafts 601 are fixedly connected to the output shafts of the two motors 605, respectively, and when it is necessary to stir the water source in the heating furnace 201, When mixing, the motor 605 can be started. When the output shaft of the motor 605 rotates, it drives the installation shaft 601 to rotate. When the installation shaft 601 rotates, the pulley 603 cooperates with the belt to make the four installation shafts 601 rotate. When the installation shaft 601 rotates, it drives the spiral blades 602 to rotate. When the spiral blades 602 rotate, the water is stirred. The water flows generated by the spiral blades 602 are intertwined and superimposed to form a complex water flow pattern. These complex water flow patterns can disturb the water more fully, avoid the water source from affecting the heat transfer efficiency under the uneven heating state, and avoid increasing fuel consumption. When one of the installation shafts 601 rotates, it drives the gear 609 to rotate. When the gear 609 rotates, it drives the gear ring 608 to rotate. When the gear ring 608 rotates, it drives the connecting ring 606 to rotate. When the connecting ring 606 rotates, it drives the scraper rod 607 to rotate. When the scraper rod 607 rotates, it scrapes the impurities generated on the inner wall of the heating furnace 201.

[0027] Specifically, Figure 2 , Figure 3 and Fig.12As shown, the water inlet structure 5 includes a mounting plate 501 fixedly connected to the mounting seat 1 and a water pump 502 mounted on the mounting plate 501, a fixed pipe 503 is installed at the water outlet of the water pump 502, a pipe 504 is fixedly connected to the fixed pipe 503, a plurality of branch pipes 505 are fixedly connected to the pipe 504, the branch pipes 505 are fixedly connected to the heating furnace 201, a water baffle 506 is fixedly connected inside the heating furnace 201, and the cross section of the water baffle 506 is a "U"-shaped structure, a connection box 507 is installed at the water inlet of the water pump 502, a second frame 508 is installed inside the connection box 507, and a second filter screen 509 is installed on the second frame 508. When it is necessary to add water to the heating furnace 201, the water pump 502 is started and the water pump 50 During operation, water will enter the connection box 507 from the external water pipe, and impurities in the water will be filtered by the second filter 509. The second filter 509 can prevent impurities from entering the heating furnace 201. At the same time, water will enter the pipe 504 from the fixed pipe 503, and then enter the heating furnace 201 from the multiple branch pipes 505 on the pipe 504. The multiple branch pipes 505 can evenly transport the water to different positions of the heating furnace 201. When water enters the interior of the heating furnace 201, it will first impact the "U"-shaped water baffle 506. After the water flow is dispersed and guided by the "U"-shaped water baffle 506, it enters the heating furnace 201 in a relatively stable and uniform state, thereby preventing the water flow with too fast a velocity from impacting the heating furnace 201 and affecting the service life of the heating furnace 201.

[0028] When the present invention is in use, when it is necessary to add water to the heating furnace 201, by starting the water pump 502, when the water pump 502 is in operation, the water source will enter the connection box 507 from the external water pipe, and the impurities in the water source will be filtered by the second filter 509. The second filter 509 can prevent the impurities from entering the heating furnace 201. At the same time, the water source will enter the pipeline 504 from the fixed pipe 503, and then enter the heating furnace 201 from the multiple branch pipes 505 on the pipeline 504. The multiple branch pipes 505 can be evenly transported to different positions of the heating furnace 201. When the water enters the interior of the heating furnace 201, it will first impact the "U"-shaped water baffle 506. After the water flow is dispersed and guided by the "U"-shaped water baffle 506, it enters the heating furnace 201 in a relatively stable and uniform state, thereby preventing the water source with too fast a flow rate from impacting the heating furnace 201 and affecting the service life of the heating furnace 201. When the water source enters the heating furnace 201, the burner 202 can be started. When the burner 202 is started, the heating tube 203 will be heated. The heated heating tube 203 will heat the water in the heating furnace 201. The heating furnace 201 will work together with the temperature sensor, controller, steam-water heat exchanger and other components in the entire steam heating system. The generated steam is transmitted to the steam-water heat exchanger through the steam pipeline. In the steam-water heat exchanger, the heat of the steam is transferred to the boiler feed water, thereby heating the feed water. At the same time, in order to achieve effective control of the feed water temperature, it is necessary to adjust the steam output of the heating furnace 201, the steam parameters (such as temperature and pressure) and the steam-water heat exchanger. The purpose of controlling the feed water temperature is achieved by adjusting the steam flow rate through the controller according to factors such as heat exchange conditions. When it is necessary to scrape the dirt in the heating tube 203, the first hydraulic rod 304 can be started. When the telescopic end of the first hydraulic rod 304 is extended, it drives the connecting rod 303 to move. When the connecting rod 303 moves, it drives the sliding column 302 to move. When the sliding column 302 moves, it drives the scraper ring 301 to slide in the heating tube 203 to scrape the dirt on the inner wall of the heating tube 203. While scraping, the third hydraulic rod 405 can be started. When the telescopic end of the third hydraulic rod 405 is contracted, it drives the fixed rod 404 to move. When the fixed rod 404 moves, it drives the two second sealing plates 403 to move. When the second sealing plate 403 slides, it drives the scraper 406 to move. When the scraper 406 moves, it scrapes the dirt on the first filter 307. When the second sealing plate 403 slides to a certain position, the second hydraulic rod 402 can be started. When the telescopic end of the second hydraulic rod 402 is extended, it drives the first sealing plate 401 to move upward. When the first sealing plate 401 slides upward to a certain position, the air pump 308 can be started. When the air pump 308 is running, it moves the cleaned dirt to the first filter 307, so that the dirt is adsorbed on the first filter 307. At this time, because the two second sealing plates 403 slide to block the top of the collection box 305 and the bottom of the smoke exhaust box 205, the air pump The adsorption force generated by 308 is better, and the setting of the second sealing plate 403 below can prevent the dirt in the collection box 305 from being adsorbed on the first filter screen 307 again. At the same time, when the cleaning is completed, the second sealing plate 403 can no longer be blocked, and then the air pump 308 can be turned off to make the dirt on the first filter screen 307 fall into the collection box 305, and the dirt in the heating tube 203 can be scraped off by the scraper ring 301 to prevent a large amount of dirt from accumulating and adhering to the inner wall of the heating tube 203 and affecting the heat conduction effect. At the same time, the setting of the collection box 305 facilitates the cleaning of the cleaned dirt, and the setting of the first sealing plate 401 can prevent smoke and dust from floating out of the air pump 308; When the collecting box 305 needs to be disassembled from the installing box 204, the screw rod 705 can be driven to rotate by the rotating rod 706, and the screw rod 705 will cooperate with the thread of the connecting frame 703 to drive the slide plate 704 to slide in the connecting frame 703, so that the slide plate 704 is no longer tightly against the collecting box 305. At this time, the rotating shaft 702 can be driven to rotate by the connecting frame 703. After the rotating shaft 702 rotates 180 degrees, the limiting groove 707 on the rotating shaft 702 will cooperate with the blocking rod 708 to block the rotating shaft 702. At this time, the collecting box 305 can be pulled out, and the slide plate 704 is driven by the screw rod 705 to contact the collecting box 305, which is convenient for fixing the collecting box 305 and the installing box 204, thereby improving the stability between the collecting box 305 and the installing box 204; At the same time, when it is necessary to stir the water source in the heating furnace 201, the motor 605 can be started. When the output shaft of the motor 605 rotates, it drives the installation shaft 601 to rotate. When the installation shaft 601 rotates, the pulley 603 cooperates with the belt to make the four installation shafts 601 rotate. When the installation shaft 601 rotates, it drives the spiral blades 602 to rotate. When the spiral blades 602 rotate, the water is stirred. The water flows generated by the spiral blades 602 are intertwined and superimposed to form a complex water flow pattern. These complex water flow patterns can more fully disturb the water, avoid the water source from affecting the heat transfer efficiency under the uneven heating state, and avoid increasing fuel consumption. When one of the installation shafts 601 rotates, it drives the gear 609 to rotate. When the gear 609 rotates, it drives the gear ring 608 to rotate. When the gear ring 608 rotates, it drives the connecting ring 606 to rotate. When the connecting ring 606 rotates, it drives the scraper rod 607 to rotate. When the scraper rod 607 rotates, it scrapes the impurities generated on the inner wall of the heating furnace 201.

[0029] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steam heating system for boiler feed water temperature control, characterized in that: It comprises a mounting seat (1), a heating structure (2) mounted on the mounting seat (1), a scraping structure (3) mounted between the heating structure (2) and the mounting seat (1), a water inlet structure (5) mounted between the mounting seat (1) and the heating structure (2), and a stirring structure (6) mounted on the heating structure (2); The heating structure (2) comprises a heating furnace (201) mounted on the mounting seat (1) and a burner (202) mounted on the heating furnace (201); a heating tube (203) is mounted in the heating furnace (201); a mounting box (204) is fixedly connected to the heating furnace (201); a smoke exhaust box (205) is mounted on the mounting box (204); the scraping structure (3) comprises a scraping ring (301) slidably connected to the heating tube (203) and a sliding column (302) fixedly connected to the scraping ring (301); the sliding column (302) is slidably connected to the mounting box (204); the mounting seat ( 1) is installed with a first hydraulic rod (304), a connecting rod (303) is fixedly connected to the sliding column (302), the connecting rod (303) is fixedly connected to the telescopic end of the first hydraulic rod (304), a collecting box (305) is installed on the installation box (204), a first frame (306) is installed in the installation box (204), a first filter screen (307) is installed on the first frame (306), an air pump (308) is installed on the installation box (204), a connecting pipe (309) is installed at the air intake port of the air pump (308), and the other end of the connecting pipe (309) is fixedly connected to the installation box (204); The installation box (204) is provided with a sealing structure (4), the sealing structure (4) comprising a first sealing plate (401) slidably connected to the installation box (204) and a second hydraulic rod (402) installed on the installation box (204), the first sealing plate (401) and the telescopic end of the second hydraulic rod (402) being fixedly connected, two second sealing plates (403) being slidably connected to the installation box (204), and a fixing rod (404) being fixedly connected between the two second sealing plates (403).

2. A steam heating system for boiler feed water temperature control according to claim 1, characterized in that: A third hydraulic rod (405) is installed on the installation box (204), the fixed rod (404) is fixedly connected to the telescopic end of the third hydraulic rod (405), and a scraper (406) is fixedly connected to the second sealing plate (403).

3. A steam heating system for boiler feed water temperature control according to claim 2, characterized in that: The installation box (204) is provided with a fixed structure (7), the fixed structure (7) comprising a fixed block (701) fixedly connected to the installation box (204) and a rotating shaft (702) rotatably connected to the fixed block (701), a connecting frame (703) fixedly connected to the rotating shaft (702), a sliding plate (704) slidably connected inside the connecting frame (703), a screw rod (705) rotatably connected to the sliding plate (704), and the screw rod (705) is threadedly connected to the connecting frame (703).

4. A steam heating system for controlling boiler feed water temperature according to claim 3, characterized in that: The rotating shaft (702) is provided with a limiting groove (707), the fixing block (701) is fixedly connected with a stop rod (708), the rotating shaft (702) abuts against the stop rod (708), and the screw rod (705) is fixedly connected with a rotating rod (706).

5. A steam heating system for controlling boiler feed water temperature according to claim 1, characterized in that: The stirring structure (6) comprises four mounting shafts (601) rotatably connected to the heating furnace (201) and spiral blades (602) fixedly connected to the mounting shafts (601); a pulley (603) is fixedly connected to the mounting shafts (601), and a belt is used to transmit power between every two pulleys (603).

6. A steam heating system for controlling boiler feed water temperature according to claim 5, characterized in that: A connecting ring (606) is rotatably connected inside the heating furnace (201), and a scraper rod (607) is fixedly connected to the connecting ring (606).

7. A steam heating system for controlling boiler feed water temperature according to claim 6, characterized in that: A gear ring (608) is fixedly connected to the connecting ring (606), and the gear ring (608) is rotatably connected to the heating furnace (201). A gear (609) is fixedly connected to one of the mounting shafts (601), and the gear (609) meshes with the gear ring (608).

8. A steam heating system for controlling boiler feed water temperature according to claim 7, characterized in that: A connecting seat (604) is installed on the heating furnace (201), and two motors (605) are installed on the connecting seat (604), wherein the two installation shafts (601) are fixedly connected to the output shafts of the two motors (605) respectively.

9. A steam heating system for controlling boiler feed water temperature according to claim 1, characterized in that: The water inlet structure (5) comprises a mounting plate (501) fixedly connected to the mounting seat (1) and a water pump (502) mounted on the mounting plate (501); a fixed pipe (503) is mounted at the water outlet of the water pump (502); a pipeline (504) is fixedly connected to the fixed pipe (503); a plurality of branch pipes (505) are fixedly connected to the pipeline (504); and the branch pipes (505) are fixedly connected to the heating furnace (201).

10. A steam heating system for controlling boiler feed water temperature according to claim 9, characterized in that: A water baffle (506) is fixedly connected inside the heating furnace (201), and the cross-section of the water baffle (506) is in a "U"-shaped structure. A connection box (507) is installed at the water inlet of the water pump (502), and a second frame (508) is installed inside the connection box (507). A second filter screen (509) is installed on the second frame (508).

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