A steam heating system for controlling the feed water temperature of a boiler

Abstract

The present invention relates to the technical field of steam heating, and specifically relates to a steam heating system for controlling the temperature of boiler feed water, which includes a mounting base, a scraping structure, a sealing structure, a water inlet structure, a stirring structure, and a fixing structure; the setting of the water inlet structure facilitates the entry of water source into the heating furnace in a relatively stable and uniform state, avoiding the impact of the water source with too fast flow rate on the heating furnace and affecting the service life of the heating furnace. The heating structure is provided to facilitate the heating of the water in the heating furnace to generate steam. The scraping structure is provided to facilitate the scraping of dirt in the heating pipe, avoiding the influence on the heat conduction effect caused by a large amount of dirt accumulating and adhering to the inner wall of the heating pipe. At the same time, the setting of the collection box facilitates the cleaning of the dirt removed. The stirring structure is provided to facilitate the full agitation of water, avoiding the influence on the heat transfer efficiency caused by the uneven heating state of the water source, and at the same time avoiding the increase in fuel consumption.

Description

Technical Field

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

[0002] A steam heating system is a system that uses the thermal energy of steam to heat an object or space, and is widely used in many fields such as industry, commerce, and civil use. A steam boiler is the core component of a steam heating system, and its working principle is that fuel burns in a combustion chamber, and the released heat is transferred to the water in the boiler through a 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, easily forming a situation with a large local water temperature difference. This uneven heating state will lead to a decrease in heat transfer efficiency, affect the overall performance of the boiler, and increase fuel consumption. At the same time, the water inlet is mostly of a straight pipe structure, and when the water flow enters the boiler, the flow rate is too fast and the distribution is uneven, easily causing local impact and uneven heating, affecting the service life of the boiler. Moreover, since a series of complex chemical reactions and physical changes occur when the burner burns fuel, the combustion products often contain various impurity components, such as unburned carbon particles, sulfur oxides, and metal oxides. These impurities will adhere to the inner wall of the heating chamber and gradually accumulate to form dirt, which affects the heat conduction effect. Summary of the Invention

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

[0005] The technical solution adopted by the present invention to solve its technical problems is: a steam heating system for controlling the temperature of boiler feed water, including a mounting base, a heating structure mounted on the mounting base, a scraping structure mounted between the heating structure and the mounting base, a water inlet structure mounted between the mounting base and the heating structure, and a stirring structure mounted on the heating structure.

[0006] The heating structure includes a heating furnace installed on the mounting base and a burner installed on the heating furnace. A heating pipe is installed inside the heating furnace. An installation box is fixedly connected to the heating furnace, and an exhaust smoke box is installed on the installation box. The scraping structure includes a scraping ring slidably connected inside the heating pipe and a sliding column fixedly connected to the scraping ring. The sliding column is slidably connected to the installation box. A first hydraulic rod is installed on the mounting base. A connecting rod is fixedly connected to the sliding column, and the connecting rod is fixedly connected to the telescopic end of the first hydraulic rod. A collection box is installed on the installation box. A first frame is installed inside the installation box, and a first filter screen is installed on the first frame. An air pump is installed on the installation box. The suction port of the air pump is installed with a connecting pipe, and the other end of the connecting pipe is fixedly connected to the installation box;

[0007] The installation box is provided with a sealing structure, which 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.

[0008] Specifically, a third hydraulic rod is installed on the installation box, the fixing rod is fixedly connected to the telescopic end of the third hydraulic rod, and a scraping plate is fixedly connected to the second sealing plate.

[0009] Specifically, the installation box is provided with a fixing structure, which includes a fixing block fixedly connected to the installation box and a rotating shaft rotatably connected to the fixing block. A connecting frame is fixedly connected to the rotating shaft, a sliding plate is slidably connected inside the connecting frame, a lead screw is rotatably connected to the sliding plate, and the lead screw is threadedly connected to the connecting frame.

[0010] Specifically, a limiting groove is provided on the rotating shaft, a blocking rod is fixedly connected to the fixing block, the rotating shaft abuts against the blocking rod, and a rotating rod is fixedly connected to the lead screw.

[0011] Specifically, the stirring structure includes four installation shafts rotatably connected inside the heating furnace and spiral blades fixedly connected to the installation shafts. Belt wheels are fixedly connected to the installation shafts, and each two belt wheels are driven by a belt.

[0012] Specifically, a connecting ring is rotatably connected inside the heating furnace, and a scraping rod is fixedly connected to the connecting ring.

[0013] Specifically, a toothed ring is fixedly connected to the connecting ring, the toothed ring is rotatably connected to the heating furnace, a gear is fixedly connected to one of the installation shafts, and the gear meshes with the toothed ring.

[0014] Specifically, a connecting seat is installed on the heating furnace, and two motors are installed on the connecting seat. Two of the installation shafts are respectively fixedly connected to the output shafts of the two motors.

[0015] 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, and a plurality of branch pipes are fixedly connected to the pipeline. The branch pipes are fixedly connected to the heating furnace.

[0016] Specifically, a water baffle is fixedly connected inside the heating furnace. The cross-section of the water baffle is in a "U" shape. A connection box is installed at the water inlet of the water pump, and a second frame is installed inside the connection box. A second filter screen is installed on the second frame.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) For the steam heating system for controlling the feed water temperature of a boiler described in the present invention, a water inlet structure is provided between the mounting seat and the heating structure. The setting of the water inlet structure facilitates the water source to enter the heating furnace in a relatively stable and uniform state, avoiding the impact of the water source with too fast flow rate on the heating furnace and affecting the service life of the heating furnace.

[0019] (2) For the steam heating system for controlling the feed water temperature of a boiler described in the present invention, a heating structure is provided on the mounting seat, and a scraping structure is provided between the heating structure and the mounting seat. The setting of the heating structure facilitates heating the water in the heating furnace to generate steam. The setting of the scraping structure facilitates scraping the dirt in the heating pipe, avoiding a large amount of dirt accumulation and adhesion on the inner wall of the heating pipe and affecting the heat conduction effect. At the same time, the setting of the collection box facilitates cleaning the scraped dirt.

[0020] (3) For the steam heating system for controlling the feed water temperature of a boiler described in the present invention, a fixing structure is provided on the mounting box. The setting of the fixing structure facilitates fixing between the collection box and the mounting box, improving the stability between the collection box and the mounting box.

[0021] (4) For the steam heating system for controlling the feed water temperature of a boiler described in the present invention, a stirring structure is provided on the heating structure. The setting of the stirring structure facilitates fully disturbing the water, avoiding the influence of the water source in an uneven heating state on the heat transfer efficiency, and at the same time avoiding increasing the fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the steam heating system for controlling the feed water temperature of a boiler provided by the present invention;

[0024] Figure 2 Schematic diagram of the connection structure between the branch pipe and the heating furnace of the present invention;

[0025] Figure 3 Schematic diagram of the connection structure between the second filter screen and the second frame of the present invention;

[0026] Figure 4 Schematic diagram of the connection structure between the second sealing plate and the installation box of the present invention;

[0027] Figure 5 Schematic diagram of the connection structure between the heating pipe and the heating furnace of the present invention;

[0028] Figure 6 is Figure 5 Enlarged schematic diagram of the structure of part A shown in;

[0029] Figure 7 Schematic diagram of the connection structure between the collection box and the installation box of the present invention;

[0030] Figure 8 Schematic diagram of the connection structure between the slide plate and the connection frame of the present invention;

[0031] Figure 9 is Figure 8 Enlarged schematic diagram of the structure of part B shown in;

[0032] Figure 10 Schematic diagram of the connection structure between the toothed ring and the gear of the present invention;

[0033] Figure 11 Schematic diagram of the connection structure between the installation shaft and the gear of the present invention;

[0034] Figure 12 Schematic diagram of the connection structure between the spiral blade and the installation shaft of the present invention.

[0035] In the figure: 1, mounting base; 2, heating structure; 201, heating furnace; 202, burner; 203, heating pipe; 204, mounting box; 205, smoke exhaust box; 3, scraping structure; 301, scraping ring; 302, sliding column; 303, connecting rod; 304, first hydraulic rod; 305, collection box; 306, first frame; 307, first filter screen; 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, scraping plate; 5, water inlet structure; 501, mounting plate; 502, water pump; 503, fixing pipe; 504, pipeline; 505, branch pipe; 506, water baffle; 507, connecting box; 508, second frame; 509, second filter screen; 6, stirring structure; 601, mounting shaft; 602, spiral blade; 603, pulley; 604, connecting seat; 605, motor; 606, connecting ring; 607, scraping rod; 608, toothed ring; 609, gear; 7, fixing structure; 701, fixing block; 702, rotating shaft; 703, connecting frame; 704, sliding plate; 705, lead screw; 706, rotating rod; 707, limiting groove; 708, stop rod. Detailed implementation mode

[0036] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation mode.

[0037] Such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 10 and Figure 12As shown in the figure, a steam heating system for controlling the feed water temperature of a boiler according to the present invention includes a mounting base 1, a heating structure 2 mounted on the mounting base 1, a scraping structure 3 mounted between the heating structure 2 and the mounting base 1, a water inlet structure 5 mounted between the mounting base 1 and the heating structure 2, and a stirring structure 6 mounted on the heating structure 2; the heating structure 2 includes a heating furnace 201 mounted on the mounting base 1 and a burner 202 mounted on the heating furnace 201. A heating pipe 203 is installed in the heating furnace 201. An installation box 204 is fixedly connected to the heating furnace 201. A smoke exhaust box 205 is installed on the installation box 204. The scraping structure 3 includes a scraping ring 301 slidably connected in 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 installation box 204. A first hydraulic rod 304 is installed on the mounting base 1. 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 collection 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. The suction port of the air pump 308 is provided with a connecting pipe 309. 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. 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. A fixing rod 404 is fixedly connected between the two second sealing plates 403.

[0038] Specifically, as 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. After water enters the heating furnace 201, the burner 202 can be started. When the burner 202 is started, it will heat the heating pipe 203. The heated heating pipe 203 will heat the water in the heating furnace 201. The heating furnace 201 will work together with components such as temperature sensors, controllers, and steam-water heat exchangers in the entire steam heating system. The generated steam is transmitted to the steam-water heat exchanger through a 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 effectively control the temperature of the feed water, it is necessary to adjust the steam flow 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 situation 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 pipe 203, the first hydraulic rod 304 can be started. When the telescopic end of the first hydraulic rod 304 extends, 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 scraping ring 301 to slide in the heating pipe 203 to scrape the dirt on the inner wall of the heating pipe 203. During the scraping, the third hydraulic rod 405 can be started. When the telescopic end of the third hydraulic rod 405 contracts, 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 screen 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 extends, it drives the first sealing plate 401 to move upward. When the first sealing plate 401 slides upward to a certain position, at this time, the air pump 308 can be started. When the air pump 308 operates, it will move the cleaned dirt towards the first filter screen 307, so that the dirt is adsorbed on the first filter screen 307. At this time, since the two second sealing plates 403 block the upper part of the collection box 305 and the bottom of the smoke exhaust box 205 after sliding, the adsorption force generated by the air pump 308 is better. At the same time, the setting of the lower second sealing plate 403 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 be used to stop the shielding, and then the air pump 308 is turned off, so that the dirt on the first filter screen 307 falls into the collection box 305. The dirt in the heating pipe 203 is scraped by the scraping ring 301 to avoid a large amount of dirt accumulating and adhering to the inner wall of the heating pipe 203, which affects 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 the smoke and dust from floating out from the air pump 308.

[0039] Specifically, such asFigure 1 , Figure 6 , Figure 8 and Figure 9 As shown in Figure 9 , a fixing structure 7 is provided on the installation box 204. The fixing structure 7 includes a fixing block 701 fixedly connected to the installation box 204 and a rotating shaft 702 rotatably connected to the fixing block 701. A connecting frame 703 is fixedly connected to the rotating shaft 702. A sliding plate 704 is slidably connected in the connecting frame 703. A lead screw 705 is rotatably connected to the sliding plate 704. The lead screw 705 is threadedly connected to the connecting frame 703. A limiting groove 707 is provided on the rotating shaft 702. A stop rod 708 is fixedly connected to the fixing block 701. The rotating shaft 702 abuts against the stop rod 708. A rotating rod 706 is fixedly connected to the lead screw 705. When it is necessary to disassemble the collection box 305 from the installation box 204, the lead screw 705 can be driven to rotate by the rotating rod 706. The lead screw 705 will be in threaded cooperation with the connecting frame 703, driving the sliding plate 704 to slide in the connecting frame 703, so that the sliding plate 704 no longer abuts tightly against the collection 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 stop rod 708 to resist the rotating shaft 702. At this time, the collection box 305 can be pulled out. The sliding plate 704 is driven by the lead screw 705 to abut against the collection box 305, facilitating the fixation between the collection box 305 and the installation box 204, and improving the stability between the collection box 305 and the installation box 204.

[0040] Specifically, as Figure 2 , Figure 5 , Figure 10 , Figure 11 and Figure 12As shown, the stirring structure 6 includes four mounting shafts 601 rotatably connected within the heating furnace 201 and spiral vanes 602 fixedly connected to the mounting shafts 601. A pulley 603 is fixedly connected to the mounting shaft 601, and each two pulleys 603 are driven by a belt. A connecting ring 606 is rotatably connected within the heating furnace 201. A scraping rod 607 is fixedly connected to the connecting ring 606, and a toothed ring 608 is fixedly connected to the connecting ring 606. The toothed 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 toothed ring 608. A connecting seat 604 is installed on the heating furnace 201, and two motors 605 are installed on the connecting seat 604. Two of the mounting shafts 601 are respectively fixedly connected to the output shafts of the two motors 605. Meanwhile, when it is necessary to stir the water source within the heating furnace 201, the motor 605 can be started. When the output shaft of the motor 605 rotates, it drives the mounting shaft 601 to rotate. When the mounting shaft 601 rotates, through the cooperation of the pulley 603 and the belt, the four mounting shafts 601 all rotate. When the mounting shaft 601 rotates, it drives the spiral vane 602 to rotate. When the spiral vane 602 rotates, it stirs the water. The water flows generated by the spiral vane 602 will intersect and superimpose with each other to form a complex water flow pattern. These complex water flow patterns can more fully disturb the water, avoid affecting the heat transfer efficiency due to the uneven heating state of the water source, and at the same time avoid increasing fuel consumption. When one of the mounting shafts 601 rotates, it drives the gear 609 to rotate. When the gear 609 rotates, it drives the toothed ring 608 to rotate. When the toothed ring 608 rotates, it drives the connecting ring 606 to rotate. When the connecting ring 606 rotates, it drives the scraping rod 607 to rotate. When the scraping rod 607 rotates, it scrapes the impurities generated on the inner wall of the heating furnace 201.

[0041] Specifically, such as Figure 2 、 Figure 3 and Figure 12As shown in the figure, the water inlet structure 5 includes a mounting plate 501 fixedly connected to the mounting base 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. The cross-section of the water baffle 506 is in a "U" shape. 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. A second filter screen 509 is installed on the second frame 508. When water needs to be added to the heating furnace 201, by starting the water pump 502, when the water pump 502 operates, water source will enter the connection box 507 from an external water pipe. Impurities in the water source will be filtered by the second filter screen 509. Through the setting of the second filter screen 509, it can prevent impurities from entering the heating furnace 201. At the same time, the water source will enter the pipe 504 from the fixed pipe 503, and then enter the heating furnace 201 from a plurality of branch pipes 505 on the pipe 504. Through the setting of the plurality of branch pipes 505, the water source can be evenly delivered to different positions of the heating furnace 201. When water enters the inside 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, avoiding the impact of the water source with too fast flow rate on the heating furnace 201 and affecting the service life of the heating furnace 201.

[0042] When the present invention is in use, when water needs to be added to the heating furnace 201, by starting the water pump 502, when the water pump 502 operates, water source will enter the connection box 507 from an external water pipe. Impurities in the water source will be filtered by the second filter screen 509. Through the setting of the second filter screen 509, it can prevent impurities from entering the heating furnace 201. At the same time, the water source will enter the pipe 504 from the fixed pipe 503, and then enter the heating furnace 201 from a plurality of branch pipes 505 on the pipe 504. Through the setting of the plurality of branch pipes 505, the water source can be evenly delivered to different positions of the heating furnace 201. When water enters the inside 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, avoiding the impact of the water source with too fast flow rate on the heating furnace 201 and affecting the service life of the heating furnace 201;

[0043] When the water source enters the heating furnace 201, the burner 202 can be started. When the burner 202 is started, it will heat the heating pipe 203. The heated heating pipe 203 will heat the water in the heating furnace 201. The heating furnace 201 will work in coordination with components such as temperature sensors, controllers, and steam-water heat exchangers 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 effectively control the temperature of the feed water, it is necessary to adjust the steam flow through the controller according to factors such as the steam output of the heating furnace 201, steam parameters (such as temperature and pressure), and the heat exchange situation 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 pipe 203, the first hydraulic rod 304 can be started. When the telescopic end of the first hydraulic rod 304 extends, 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 will drive the scraping ring 301 to slide in the heating pipe 203 to scrape the dirt on the inner wall of the heating pipe 203. While scraping, the third hydraulic rod 405 can be started. When the telescopic end of the third hydraulic rod 405 contracts, 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 plates 403 slide, they drive the scraper 406 to move. When the scraper 406 moves, it will scrape the dirt on the first filter screen 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 extends, it drives the first sealing plate 401 to move upward. When the first sealing plate 401 slides upward to a certain position, at this time, the air pump 308 can be started. When the air pump 308 operates, it will move the cleaned dirt towards the first filter screen 307, so that the dirt is adsorbed on the first filter screen 307. At this time, since the two second sealing plates 403 block the upper part of the collection box 305 and the bottom of the smoke exhaust box 205 after sliding, the adsorption force generated by the air pump 308 is better. At the same time, the setting of the lower second sealing plate 403 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 be used to stop blocking, and then the air pump 308 can be turned off, so that the dirt on the first filter screen 307 falls into the collection box 305. The dirt in the heating pipe 203 is scraped by the scraping ring 301 to avoid a large amount of dirt accumulating and adhering to the inner wall of the heating pipe 203, which affects 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 the smoke and dust from floating out from the air pump 308;

[0044] When it is necessary to disassemble the collection box 305 from the installation box 204, the screw rod 705 can be driven to rotate by the rotating rod 706. The screw rod 705 will be in threaded cooperation with the connecting frame 703, driving the sliding plate 704 to slide within the connecting frame 703, so that the sliding plate 704 no longer presses tightly against the collection 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 collection box 305 can be pulled out, and the sliding plate 704 is driven by the screw rod 705 to contact the collection box 305, facilitating the fixation between the collection box 305 and the installation box 204, and improving the stability between the collection box 305 and the installation box 204;

[0045] Meanwhile, 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, it cooperates with the belt through the pulley 603, causing all four installation shafts 601 to rotate. When the installation shaft 601 rotates, it drives the spiral blade 602 to rotate. When the spiral blade 602 rotates, it stirs the water. The water flows generated by the spiral blade 602 will intersect and superimpose with each other, forming complex water flow patterns. These complex water flow patterns can more fully disturb the water, avoiding the influence of the water source in an uneven heating state on the heat transfer efficiency, and at the same time avoiding an increase in fuel consumption. When one installation shaft 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 scraping rod 607 to rotate. When the scraping rod 607 rotates, it scrapes the impurities generated on the inner wall of the heating furnace 201.

[0046] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments 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); 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); 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); 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); 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); The heating furnace (201) is provided with a connection seat (604), and two motors (605) are provided on the connection seat (604), wherein the two installation shafts (601) are respectively fixedly connected to the output shafts of the two motors (605); 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); 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).

2. A steam heating system for boiler feed water temperature control according to claim 1, 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).

3. A steam heating system for boiler feed water temperature control according to claim 2, 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).

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