A heating network heater for thermal power plant

Abstract

The present application discloses a heat network heater for a thermal power plant, which relates to the technical field of heat network heaters, including a heat exchange cylinder, which has a heat exchange cavity inside, and water to be exchanged circulates in the heat exchange cavity, and the heat exchange cylinder is provided with a water inlet and a water outlet; a heat exchange tube layer is arranged in the heat exchange cylinder and a plurality of plasma spoiler blocks are evenly arranged on the surface, and the plasma spoiler blocks can accelerate the bead condensation of steam, and the heat exchange tube layer has a shunt pipe section and a horizontal pipe section, and the horizontal pipe section is arranged in a plurality of annular arrays, and the shunt pipe section is annular and is interconnected with a plurality of horizontal pipe sections respectively, and steam flows in the heat exchange tube layer; a self-turbance component is arranged in the heat exchange cavity and is located between the plurality of horizontal pipe sections, and is used to change the flow path of the hot water to be exchanged. By adopting the above technical solution, the bead condensation of steam can be accelerated, and at the same time, by changing the flow path of the hot water to be exchanged, the turbulence effect in the heat exchange process is further enhanced, and the overall heat exchange efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heating network heaters, and in particular to a heating network heater for a thermal power plant. Background Art

[0002] The heat network heater is a device used in thermal power plants. Its main function is to increase the temperature of the heat network circulating water by transferring the heat energy in the steam to the heat network circulating water, thereby meeting the needs of heating and industrial heat. The heat network heater is usually installed in the heating system of a thermal power plant. Its working principle is to transfer the heat in the high-temperature and high-pressure steam to the low-temperature and low-pressure heat network circulating water through a heat exchanger. Steam enters the heater as a heat source, and transfers the heat to the heat network circulating water flowing through the heat exchanger through the heat exchange tube, thereby increasing its temperature. The heat network heater includes the outer shell of the heater and the internal heat exchange tube bundle. The outer shell is usually made of high-temperature and high-pressure resistant materials to support and protect the internal structure. The heat source steam flows through the heat exchange tube bundle to transfer heat with the heat network circulating water. The heated heat network circulating water is transported to heating users (such as residential, commercial buildings or industrial facilities) to provide the required heat energy.

[0003] The related technology discloses a thermal network heater for a thermal power plant, comprising a horizontally arranged tank body, wherein a water inlet pipe and a water outlet pipe are respectively installed on both end surfaces of the tank body, a heating pipe is arranged inside the tank body, an air guide pipe and an air outlet pipe are installed inside the heating pipe, a plurality of nozzles are evenly arranged on the side wall of the air guide pipe, the air guide pipe is connected to an air inlet pipe, the air inlet pipe and the air outlet pipe penetrate the heating pipe and the tank body and extend to the outside of the tank body to be connected to a high-temperature steam device.

[0004] Although the related technology can solve the problem that the existing steam cannot be evenly distributed inside the heating pipe by achieving uniform steam transfer and heat conduction through multiple evenly distributed nozzles, the heat exchange efficiency is low because the water and water vapor to be heated only flow naturally through a single-structure heat exchange tube bundle. Summary of the invention

[0005] The object of the present invention is to provide a heating network heater for a thermal power plant, which solves the technical problem that the heat exchange efficiency is relatively low due to a single structure of heat exchange tube layers.

[0006] The present application provides a heating network heater for a thermal power plant, comprising:

[0007] The heat exchange cylinder has a heat exchange cavity inside, in which water to be heat exchanged circulates, and the heat exchange cylinder is provided with a water inlet and a water outlet;

[0008] A heat exchange tube layer, wherein the heat exchange tube layer is arranged in the heat exchange cylinder, a plurality of plasma spoiler blocks are evenly arranged on the inner surface of the heat exchange tube layer, and the plasma spoiler blocks can accelerate the bead condensation of steam, the heat exchange tube layer has a shunt tube section and a horizontal tube section, the horizontal tube sections are multiple and arranged in an annular array, the shunt tube section is annular and is respectively interconnected with the plurality of horizontal tube sections, and steam flows in the heat exchange tube layer;

[0009] The self-perturbing flow component is arranged in the heat exchange cavity and located between the plurality of horizontal pipe sections, and the self-perturbing flow component is used to change the flow path of the hot water to be exchanged.

[0010] By adopting the above technical solution, plasma spoiler blocks are evenly arranged on the inner surface of the heat exchange tube layer, which can accelerate the bead condensation of steam, thereby significantly improving the heat exchange efficiency. The design of the annular tube layer makes the layout of the heat exchange tube more compact and effectively utilizes the space. The connection between the diverter section and the horizontal section ensures the uniformity of the steam flow, thereby achieving an efficient and stable heat exchange effect. The self-turbation component further enhances the turbulence effect in the heat exchange process by changing the flow path of the hot water to be exchanged, thereby improving the overall heat exchange efficiency.

[0011] Preferably, the self-spoiler component comprises:

[0012] A rotating sleeve is rotatably disposed in the heat exchange chamber along the axis of the heat exchange cylinder;

[0013] The spiral blades are evenly arranged on the rotating sleeve, and one of the spiral blades is aligned with the water inlet and can drive the rotating sleeve to rotate along with the water flow of the water inlet.

[0014] By adopting the above technical solution, the design of the rotating sleeve and the spiral blades enables the water flow at the water inlet to drive the rotating sleeve to rotate, thereby enhancing the disturbance effect of the water flow. The spiral blades further increase the turbulence of the water flow, improve the mixing and heat transfer efficiency of the water flow in the heat exchanger, and thus achieve higher heat exchange performance.

[0015] Preferably, the self-spoiler component further comprises:

[0016] The scale cleaning part is arranged in the rotating sleeve. The scale cleaning part can spray out an acidic cleaning liquid for dissolving scale, and the scale cleaning part can also spray out clean water for flushing scale.

[0017] By adopting the above technical solution, the scale cleaning parts can effectively dissolve and flush the scale, keep the inner surface of the heat exchange tube clean, and thus ensure the long-term stability of the heat exchange efficiency. The acid cleaning liquid is used to dissolve the scale, and the clean water flushing can completely remove the dissolved scale material, thereby achieving the automation and efficient cleaning effect of the heat exchanger.

[0018] Preferably, a plurality of first cleaning holes are uniformly arranged in an array on the outer surface of the rotating sleeve, an internal thread is arranged on the inner side of the rotating sleeve, and the scale cleaning member comprises:

[0019] A cleaning pipe, the cleaning pipe is threadedly connected in the rotating sleeve, and second cleaning holes are evenly opened on the cleaning pipe;

[0020] A driving member, the driving member is fixedly connected to the rotating sleeve, and the driving member is used to drive the rotating sleeve to rotate;

[0021] Wherein, when the cleaning pipe rotates relative to the rotating sleeve, each of the first cleaning holes can be communicated with the second cleaning hole.

[0022] By adopting the above technical solution, the rotating sleeve and the cleaning hole set on the cleaning pipe can achieve accurate alignment, so as to efficiently spray the acid cleaning liquid and clean water. The design of the driving part enables the cleaning pipe to rotate stably, ensuring the continuity and thoroughness of the cleaning process, thereby achieving an all-round cleaning effect in the heat exchange tube and ensuring the durability of the heat exchange efficiency.

[0023] Preferably, the scale cleaning component further comprises:

[0024] A three-way connecting pipe, the main pipe of which is connected to the cleaning pipe;

[0025] A pickling liquid tank is interconnected with the three-way connecting pipe and a branch pipe, and contains acidic cleaning liquid;

[0026] A cleaning water tank is connected to another branch pipe of the three-way connecting pipe and contains cleaning water;

[0027] A three-way flow-dividing regulating valve is arranged on the three-way connecting pipe.

[0028] By adopting the above technical solution, the design of the three-way connecting pipe and the three-way diverter regulating valve allows the acid cleaning liquid and the cleaning water to be switched and distributed as needed, ensuring the flexibility and efficiency of the cleaning process. The independent setting of the acid cleaning liquid tank and the cleaning water tank facilitates the storage and management of the cleaning medium, thereby achieving efficient cleaning.

[0029] Preferably, the scale cleaning member further comprises:

[0030] A sealing ring is sleeved on the three-way connecting pipe and the cleaning pipe. The three-way connecting pipe and the cleaning pipe are respectively dynamically sealed and rotatably connected with the sealing ring.

[0031] By adopting the above technical solution, the design of the sealing ring can effectively prevent the cleaning liquid from leaking during the cleaning process. The dynamic seal and rotation connection of the sealing ring ensure that the cleaning pipe can still maintain good sealing performance during the rotation process, thereby achieving no leakage during the cleaning process.

[0032] Preferably, the driving member comprises:

[0033] A first gear, sleeved on the rotating sleeve and located outside the heat exchange cylinder;

[0034] A second gear, capable of meshing with or disengaging from the first gear;

[0035] A servo motor having an output shaft, wherein the output shaft is fixedly connected to the first gear;

[0036] A power separation component is used to drive the second gear to move away from or closer to the first gear.

[0037] By adopting the above technical solution, the design of gear transmission and servo motor can realize precise rotation control of the cleaning sleeve and ensure the stability of the cleaning process. The setting of the power separation part enables the gear transmission to be flexibly switched, and the rotating sleeve can be rotated by mechanical drive or by water flow drive.

[0038] Preferably, the power separation element comprises:

[0039] A cushion block is disposed against the servo motor;

[0040] A hydraulic cylinder is fixedly connected to the cushion block, and the hydraulic cylinder is used to drive the servo motor to move closer to or away from the first gear.

[0041] By adopting the above technical solution, the position of the servo motor can be adjusted.

[0042] Preferably, the spiral blade is provided with a spoiler, and the spoiler is used to change the flow direction of the liquid to be heated.

[0043] By adopting the above technical solution, the spoiler on the spiral blade can increase the turbulence of the water flow, thereby improving the heat exchange efficiency. The design of the spoiler can make the hot water to be exchanged form a more complex flow path in the heat exchange cavity, thereby achieving efficient and uniform heat exchange process.

[0044] Preferably, the spoiler comprises a plurality of protrusions, and the plurality of protrusions are evenly arranged on the spiral blade.

[0045] By adopting the above technical solution, the design of the protrusions can further enhance the disturbance effect of the water flow and increase the degree of turbulence. The uniform distribution of multiple protrusions allows the water flow to form a complex flow path on the spiral blades, thereby achieving a more efficient heat transfer effect in the heat exchanger.

[0046] In summary, the present application includes at least one of the following beneficial technical effects:

[0047] 1. By evenly arranging plasma spoiler blocks on the inner surface of the heat exchange tube layer, the bead condensation of steam can be accelerated, thereby significantly improving the heat exchange efficiency. The design of the annular tube layer makes the arrangement of the heat exchange tube more compact and uniform. The connection between the diverter tube section and the horizontal tube section ensures the uniformity of the steam flow, thereby achieving an efficient and stable heat exchange effect. The self-turbation component further enhances the turbulence effect in the heat exchange process by changing the flow path of the hot water to be exchanged, thereby improving the overall heat exchange efficiency.

[0048] 2. By setting the design of rotating sleeve and spiral blade, the water flow at the water inlet can drive the rotating sleeve to rotate, thereby enhancing the disturbance effect of the water flow. The spiral blade further increases the turbulence of the water flow, improves the mixing and heat transfer efficiency of the water flow in the heat exchanger, and thus achieves higher heat exchange performance;

[0049] 3. By setting a cleaning pipe and cleaning holes on the rotating sleeve and the cleaning pipe, the acid cleaning liquid and clean water can be sprayed efficiently to ensure the cleaning of scale inside the heat exchange cylinder, thereby preventing scale from affecting the overall heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application;

[0051] Figure 2 It is a structural schematic diagram of the heat exchange tube layer of the present application;

[0052] Figure 3 It is a schematic diagram of the structure of the self-spoiler component of the present application;

[0053] Figure 4 It is a structural schematic diagram of the scale cleaning component of the present application;

[0054] Figure 5 It is a cross-sectional view of the heat exchange sleeve of the present application.

[0055] In the figure: 1, heat exchange cylinder; 11, water inlet pipe; 2, heat exchange tube layer; 21, diverter pipe section; 22, horizontal pipe section; 31, rotating sleeve; 32, spiral blade; 33, scale cleaning member; 331, cleaning pipe; 332, driving member; 3321, first gear; 3322, second gear; 3323, servo motor; 333, three-way connecting pipe; 334, pickling liquid tank; 335, cleaning water tank; 336, three-way diverter regulating valve; 337, sealing ring; 4, power separation member; 41, gasket; 42, hydraulic cylinder. DETAILED DESCRIPTION

[0056] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0057] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0058] Example, see Figure 1-Figure 2 A heat network heater for a thermal power plant includes a heat exchange cylinder 1, a heat exchange tube layer 2 and a self-disturbing flow component.

[0059] Reference Figure 1 A bracket is provided at the bottom of the heat exchange tube 1, and the bracket is used to support the heat exchange tube 1. The heat exchange tube 1 is made of high temperature and high pressure resistant materials, which plays a role in supporting and protecting the internal structure. The heat exchange tube 1 has a heat exchange cavity inside, and the water to be exchanged circulates in the heat exchange cavity. The left and right sides of the heat exchange tube 1 are respectively provided with a water inlet and a water outlet, and a water inlet pipe 11 is provided at the left water inlet.

[0060] Reference Figure 1 and Figure 2 The heat exchange tube layer 2 is arranged in the heat exchange cylinder 1, and a plurality of plasma spoiler blocks are evenly arranged on the inner surface of the heat exchange tube layer 2. The plasma spoiler blocks can accelerate the bead condensation of steam. The plasma spoiler blocks use a plasma turbulence furnace to inject a certain amount of chromium, titanium, argon, nitrogen plasma into the heat exchange tube layer 2 to form convex and concave points on the surface of the heat exchange tube layer 2. In the condensation heat exchange, the steam condenses rapidly with these convex and concave points as the core to form water droplets, which become bead condensation, achieving the effect of efficient heat exchange enhancement and improving the heat exchange coefficient. The heat transfer coefficient of the heat exchange tube layer 2 using the plasma spoiler blocks is 7000-9600W / (m 2·℃) or more, which is more than times the heat transfer of other heat exchange tube layers 2 of the same volume. The heat exchange tube layer 2 is treated with plasma turbulence, so the surface of the heat exchange tube layer 2 is not easy to scale, and the heat exchange efficiency is stable. In addition, in this embodiment, the heat exchange tube adopts a double-corrugated tube, which is a heat exchange tube with a combination of internal and external threads (in the figure, it is a smooth tube for the convenience of display). In the case of small fluid resistance, strong turbulence can be formed, which greatly improves the heat release coefficient inside and outside the tube. Since the existence of the thread increases the actual heat transfer area, the total heat transfer coefficient calculated using the nominal heat transfer area is greatly improved. In addition, since the fluid flows in a spiral, the fluid has a strong scouring effect on the tube wall under the action of centrifugal force, so it is not easy to scale.

[0061] Reference Figure 1 and Figure 2 The heat exchange tube layer 2 has a shunt tube section 21 and a horizontal tube section 22. The horizontal tube sections 22 are multiple and arranged in an annular array. The shunt tube section 21 is annular and is respectively connected to the multiple horizontal tube sections 22. Steam flows in the heat exchange tube layer 2. In this embodiment, there are two tube bundles, and the overall diameters of the two heat exchange tube layers 2 are different. The design of the annular tube layer makes the arrangement of the heat exchange tubes more compact and effectively utilizes the space. The connection between the shunt tube section 21 and the horizontal tube section 22 ensures the uniformity of the steam flow.

[0062] Reference Figure 1 and Figure 3 The self-perturbing assembly is arranged in the heat exchange chamber and between multiple horizontal pipe sections 22. The self-perturbing assembly is used to change the flow path of the hot water to be exchanged. The self-perturbing assembly includes a rotating sleeve 31 and a spiral blade 32. The rotating sleeve 31 is arranged in the heat exchange chamber to rotate along the axis of the heat exchange tube 1; the spiral blades 32 are evenly arranged on the rotating sleeve 31, and the leftmost spiral blade 32 is arranged to align with the water inlet pipe 11 and can drive the rotating sleeve 31 to rotate with the water flow at the water inlet. The water flow through the water inlet drives the rotating sleeve 31 to rotate, thereby enhancing the disturbance effect of the water flow. The spiral blades 32 further increase the turbulence of the water flow, improve the mixing and heat transfer efficiency of the water flow in the heat exchanger, and thus achieve higher heat exchange performance.

[0063] Reference Figure 1 and Figure 4 The self-turbation assembly also includes a scale cleaning member 33, which is disposed in the rotating sleeve 31. The scale cleaning member 33 can spray out an acidic cleaning liquid for dissolving scale, and the scale cleaning member 33 can also spray out clean water for flushing scale.

[0064] Reference Figure 5Specifically, a plurality of first cleaning holes are uniformly arrayed on the outer surface of the rotating sleeve 31, and an internal thread is provided on the inner side of the rotating sleeve 31. The scale cleaning member 33 includes a cleaning pipe 331, a driving member 332, a three-way connecting pipe 333, a pickling liquid tank 334, a cleaning water tank 335 and a three-way diverter regulating valve 336. The cleaning pipe 331 is threadedly connected in the rotating sleeve 31, and second cleaning holes are uniformly opened on the cleaning pipe 331. The first cleaning holes and the second cleaning holes have the same diameter and number. The driving member 332 is fixedly connected to the rotating sleeve 31, and the driving member 332 is used to drive the rotating sleeve 31 to rotate.

[0065] Reference Figure 4 The right main pipe of the three-way connecting pipe 333 is connected to the cleaning pipe 331, and the pickling liquid tank 334 is connected to a branch pipe on the left side of the three-way connecting pipe 333. The pickling liquid tank 334 contains acidic cleaning liquid. The cleaning water tank 335 is connected to another branch pipe of the three-way connecting pipe 333, and contains cleaning water. The three-way diversion regulating valve 336 is arranged on the three-way connecting pipe 333, and the sealing ring 337 is sleeved on the three-way connecting pipe 333 and the cleaning pipe 331. The three-way connecting pipe 333 and the cleaning pipe 331 are respectively dynamically sealed and rotatably connected with the sealing ring 337.

[0066] Reference Figure 5 When it is necessary to clean the scale inside the heat exchange tube 1, first open the three-way diversion regulating valve 336 to allow the acidic cleaning liquid in the pickling liquid tank 334 to flow into the cleaning tube 331 through the three-way connecting pipe 333, then fix the cleaning tube 331 outside the heat exchange tube 1, and then drive the rotating sleeve 31 to rotate relative to the cleaning tube 331, so that the first cleaning hole and the second cleaning hole are changed from a blocked state to a mutually connected state, and the pickling liquid can be sprayed out evenly from the first cleaning hole and the second cleaning hole. After the acidic cleaning liquid dissolves the scale for a period of time, the acidic cleaning liquid channel is closed and the cleaning water channel is opened. The cleaning water flows into the cleaning tube 331 through the three-way connecting pipe 333, and the cleaning water is sprayed onto the surface of the heat exchange tube through the second cleaning hole and the first cleaning hole to flush the dissolved scaling substances. Depending on the severity of the scaling, it may be necessary to spray the acidic cleaning liquid and the cleaning water in multiple cycles to ensure that all scaling substances are completely removed. By adjusting the three-way flow-dividing regulating valve 336, the flow rate and spraying time of the acid cleaning liquid and the cleaning water are controlled to achieve efficient cleaning. In this embodiment, the three-way flow-dividing regulating valve 336 adopts an electromagnetic three-way flow-dividing regulating valve.

[0067] Reference Figure 1 and Figure 4,, the design of the sealing ring 337 can effectively prevent the cleaning liquid from leaking during the cleaning process. The dynamic seal and rotation connection of the sealing ring 337 ensure that the cleaning tube 331 can still maintain good sealing performance during the rotation process, thereby achieving leakage-free cleaning. The scale cleaning member 33 can effectively dissolve and flush the scale, keep the inner surface of the heat exchange tube clean, and thus ensure the long-term stability of the heat exchange efficiency. The acidic cleaning liquid is used to dissolve the scale, and the clean water flushing can completely remove the dissolved scaling materials, thereby achieving the automation and efficient cleaning effect of the heat exchanger.

[0068] Reference Figure 4 The driving member 332 includes a first gear 3321, a second gear 3322, a servo motor 3323 and a power separation member 4 located at the bottom. The first gear 3321 is sleeved on the rotating sleeve 31 and is located outside the heat exchange tube 1. The second gear 3322 can be engaged with or separated from the first gear 3321. The servo motor 3323 has an output shaft, which is fixedly connected to the first gear 3321. The power separation member 4 is used to drive the second gear 3322 away from or close to the first gear 3321. The design of the gear transmission and the servo motor 3323 can realize the precise rotation control of the rotating sleeve 31 and ensure the stability of the cleaning process. The setting of the power separation member 4 allows the gear transmission to be flexibly switched, and the rotating sleeve 31 can be rotated by mechanical drive or by water flow drive.

[0069] The power separation member 4 includes a cushion block 41 and a hydraulic cylinder 42 at the bottom. The cushion block 41 is arranged against the servo motor 3323, and the hydraulic cylinder 42 is fixedly connected to the cushion block 41. The hydraulic cylinder 42 is used to drive the servo motor 3323 to move up and down. By adopting the above technical solution, the position of the servo motor 3323 can be adjusted, thereby controlling whether the first gear 3321 is meshed with the second gear 3322. It should be noted that when it is not necessary to clean the inside of the heat exchange cylinder 1, the power of the servo motor 3323 can be used to drive the rotating sleeve 31 and the cleaning pipe 331 to rotate together, or the rotating sleeve 31 can be driven by water flow to rotate. When it is necessary to clean the scale, the cleaning pipe 331 needs to be fixed first, and then the rotating sleeve 31 is driven to make the first cleaning hole and the second cleaning hole communicate with each other, and then the cleaning pipe 331 is fixed. Due to the threaded connection, the cleaning pipe 331 and the rotating sleeve 31 can rotate synchronously and spray pickling liquid or clean water.

[0070] In other embodiments, a spoiler (not shown) is provided on the spiral blade 32, and the spoiler is a plurality of evenly arranged protrusions, which are used to change the flow direction of the liquid to be heated. The spoiler on the spiral blade 32 can increase the turbulence of the water flow, thereby improving the heat exchange efficiency and more efficient heat transfer effect.

[0071] The implementation principle of the embodiment of the present application is:

[0072] The plasma spoiler block and double corrugated tube design significantly improve the heat exchange efficiency, while the self-spoiler assembly and scale cleaning member 33 realize effective disturbance of the water flow and automatic cleaning. The sealing ring 337 ensures high efficiency and no leakage during the cleaning process. The design of the annular tube layer and the diverter tube section 21 makes the heat exchange tube arrangement more compact, and the overall structure is stable and reliable, which is suitable for the high-efficiency heat exchange requirements of thermal power plants.

[0073] It should be noted that the hydraulic cylinder 42, servo motor 3323, and three-way diverter regulating valve 336 in this embodiment are all equipment purchased on the market, and the models can be selected or customized according to actual needs. In this application, we only use them and do not improve their structure and function. For technicians in this field, their setting method, installation method and electrical connection method only need to be debugged according to the requirements of their instruction manual, and they will not be described in detail here.

[0074] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heating network heater for a thermal power plant, characterized in that: include: A heat exchange cylinder (1) has a heat exchange cavity inside, in which water to be heat exchanged circulates, and the heat exchange cylinder (1) is provided with a water inlet and a water outlet; A heat exchange tube layer (2), the heat exchange tube layer (2) being arranged in the heat exchange cylinder (1), a plurality of plasma spoiler blocks being evenly arranged on the inner surface of the heat exchange tube layer (2), the plasma spoiler blocks being capable of accelerating the bead-like condensation of steam, the heat exchange tube layer (2) comprising a diverter tube section (21) and a horizontal tube section (22), the horizontal tube sections (22) being multiple and arranged in an annular array, the diverter tube section (21) being annular and respectively interconnected with the multiple horizontal tube sections (22), and steam flowing in the heat exchange tube layer (2); A self-perturbing flow component, arranged in the heat exchange cavity and located between the plurality of horizontal pipe sections (22), the self-perturbing flow component being used to change the flow path of the hot water to be exchanged; The self-perturbing component comprises: A rotating sleeve (31) is rotatably disposed in the heat exchange chamber along the axis of the heat exchange cylinder (1); Spiral blades (32), the spiral blades (32) being evenly arranged on the rotating sleeve (31), the spiral blades (32) being arranged to align with the water inlet and being able to drive the rotating sleeve (31) to rotate along with the water flow at the water inlet; The self-perturbing component also includes: A scale cleaning member (33) is arranged in the rotating sleeve (31), and the scale cleaning member (33) can spray out an acidic cleaning liquid for dissolving scale, and the scale cleaning member (33) can also spray out clean water for flushing scale; A plurality of first cleaning holes are evenly arranged in an array on the outer surface of the rotating sleeve (31), an internal thread is provided on the inner side of the rotating sleeve (31), and the scale cleaning member (33) comprises: A cleaning pipe (331), the cleaning pipe (331) being threadedly connected in the rotating sleeve (31), and second cleaning holes being evenly formed on the cleaning pipe (331); a driving member (332), the driving member (332) being fixedly connected to the rotating sleeve (31), and the driving member (332) being used to drive the rotating sleeve (31) to rotate; Wherein, when the cleaning pipe (331) rotates relative to the rotating sleeve (31), each of the first cleaning holes can be communicated with the second cleaning hole.

2. A heating network heater for a thermal power plant according to claim 1, characterized in that: The scale cleaning member (33) further comprises: A three-way connecting pipe (333), the main pipe of the three-way connecting pipe (333) being in communication with the cleaning pipe (331); A pickling liquid tank (334), which is in communication with a branch pipe of the three-way connecting pipe (333) and contains an acidic cleaning liquid; A cleaning water tank (335), which is in communication with another branch pipe of the three-way connecting pipe (333) and contains cleaning water; The three-way flow-dividing regulating valve (336) is arranged on the three-way connecting pipe (333).

3. A heating network heater for a thermal power plant according to claim 2, characterized in that: The scale cleaning member (33) further comprises: The sealing ring (337) is sleeved on the three-way connecting pipe (333) and the cleaning pipe (331); the three-way connecting pipe (333) and the cleaning pipe (331) are respectively dynamically sealed and rotatably connected to the sealing ring (337).

4. A heating network heater for a thermal power plant according to claim 1, characterized in that: The driving member (332) comprises: A first gear (3321) is sleeved on the rotating sleeve (31) and is located outside the heat exchange cylinder (1); A second gear (3322) capable of meshing with or disengaging from the first gear (3321); A servo motor (3323) having an output shaft, wherein the output shaft is fixedly connected to the first gear (3321); A power separation component (4) is used to drive the second gear (3322) to move away from or closer to the first gear (3321).

5. A heating network heater for a thermal power plant according to claim 4, characterized in that: The power separation component (4) comprises: A cushion block (41) is disposed against the servo motor (3323); A hydraulic cylinder (42) is fixedly connected to the cushion block (41), and the hydraulic cylinder (42) is used to drive the servo motor (3323) to move closer to or farther away from the first gear (3321).

6. A heating network heater for a thermal power plant according to claim 1, characterized in that: The spiral blade (32) is provided with a spoiler, and the spoiler is used to change the flow direction of the liquid to be heated.

7. A heating network heater for a thermal power plant according to claim 6, characterized in that: The spoiler comprises a plurality of protrusions, and the plurality of protrusions are evenly arranged on the spiral blade (32).

Images