A high temperature duct conditioning system

Abstract

The application discloses a high-temperature pipeline adjusting system, which comprises a valve body connected to a pipeline for conveying high-temperature fluid to adjust the flow thereof, a cooling water channel system comprising a plurality of cooling passages arranged in the valve body in sequence along a high-temperature fluid conveying path, a driving system for adjusting the opening degree of the valve body, and a control system for controlling the cooling water channel system and the driving system; wherein the control system matches the cooling mode and / or the cooling flow of the cooling water channel system according to the temperature of the high-temperature fluid in the pipeline. The application adopts different cooling modes and optimized combinations of flow according to different temperatures in the pipeline to meet the cooling and rapid adjusting functions under different temperatures, improve the safety and economy of the valve body, slow down the damage and aging of the high-temperature pipeline adjusting system and prolong the service life, and effectively reduce the manufacturing cost and operation cost of the valve body under different conditions.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more specifically to a high-temperature pipeline regulation system. Background Technology

[0002] A regulating valve, also known as a control valve, is a final control element that receives control signals from a regulating control unit and uses power to change process parameters such as flow rate, pressure, temperature, and liquid level of a medium. High-temperature regulating valves are generally used for regulating and controlling high-temperature flowing media. However, the stability and precision of regulating high-temperature fluids have always been a challenge and bottleneck in the field of thermal energy and power engineering. Furthermore, the temperature of high-temperature fluids exceeds 550℃, which alters the selection of materials, structural design, and operating methods of the control mechanism, leading to numerous problems related to economy and safety. For example, the gas flow downstream of high-temperature valves is unstable, and they cannot work in conjunction with ejectors.

[0003] Existing high-temperature control valves employ either butterfly or GLOBE structures. While butterfly structures are relatively simple and can be water-cooled, high pressure drops lead to chaotic gas flow at the outlet, resulting in significant noise and vibration. Furthermore, their irregular regulation curves result in poor control accuracy. GLOBE control valves, due to their complex flow channels, cannot utilize water-cooled jackets. GLOBE valves also have a low Cv (circuit velocity), requiring larger diameters for the same operating conditions. Additionally, high-temperature conditions can cause valve jamming, stem breakage, and shorten their lifespan. These factors negatively impact the stability, safety, and economy of the system. In harsh high-temperature environments, the lack of effective heat dissipation methods and structures also contributes to gradual aging and reduced lifespan.

[0004] Therefore, it is necessary to provide a new approach to solve the aforementioned technical problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a novel high-temperature pipeline regulation system. This system enables temperature control of the high-temperature pipeline, employing optimized combinations of different cooling methods and flow rates based on varying pipeline temperatures to meet cooling and rapid regulation needs at different temperatures. This improves the safety and economy of the valve body, reduces damage and aging of the high-temperature pipeline regulation system, and extends its service life. The segmented cooling structure provides better cooling performance, resulting in more uniform heat exchange, improved cooling efficiency, simplified overall structure, and reduced costs.

[0006] The technical solution of this invention is summarized as follows:

[0007] A high-temperature pipeline regulation system, comprising:

[0008] The valve body is connected to a pipe used to transport high-temperature fluids to regulate their flow rate;

[0009] The cooling water system includes multiple cooling passages sequentially arranged inside the valve body along the high-temperature fluid transport path;

[0010] The drive system is used to adjust the valve body opening.

[0011] The control system controls the cooling water system and the drive system.

[0012] The control system matches the cooling method and / or cooling flow rate of the cooling water system based on the temperature of the high-temperature fluid in the pipeline.

[0013] Preferably, the cooling water system includes a first cooling passage, a second cooling passage, and a third cooling passage to provide segmented cooling for the valve body.

[0014] Preferably, the valve body includes:

[0015] Flange assembly, used to form the fixed mounting end of the valve body;

[0016] A transmission assembly, which is movably mounted with a flange assembly to form the movable end of the valve body;

[0017] The valve core assembly is fixedly installed inside the transmission assembly and extends into the flange assembly;

[0018] The drive system drives the transmission components to move, thereby causing the valve core assembly to move relative to the flange assembly, so as to adjust the gap between the valve core assembly and the flange assembly, thereby achieving flow regulation.

[0019] The first cooling passage is located on the flange assembly, the second cooling passage is located on the transmission assembly, and the third cooling passage is located on the valve core assembly.

[0020] Preferably, the transmission assembly includes a first support ring and a second support ring fixedly connected to each other; wherein,

[0021] The first support ring is used to install the valve core assembly, and the second support ring is connected to the hydraulic power system.

[0022] Preferably, the first cooling passage is located inside the sidewall of the flange assembly and is arranged to surround the high-temperature fluid transport path;

[0023] The second cooling passage is located inside the side wall of the transmission assembly and surrounds the valve core assembly and the mating point between the valve core assembly and the flange assembly.

[0024] The third cooling passage is located on the outer surface of the valve core assembly and is configured to cover the outer surface of the valve core assembly.

[0025] When the cooling water circuit supplies cooling water to the valve body, the cooling water sequentially performs primary cooling on the valve body in the first cooling passage, secondary cooling in the second cooling passage, and tertiary cooling in the third cooling passage, thereby realizing the temperature control function of the high-temperature pipeline regulation system.

[0026] Preferably, the control system adjusts the cooling mode of the cooling water system based on the signal feedback of the high-temperature fluid inlet temperature in the pipeline; the cooling mode includes single-stage cooling or multi-stage combined cooling, wherein,

[0027] When the inlet temperature of the high-temperature fluid in the pipeline is Tg≤Ta, the first cooling passage is controlled to work independently.

[0028] When the inlet temperature of the high-temperature fluid in the pipeline, Tg > Ta, the first cooling passage, the second cooling passage, and the third cooling passage are controlled to work simultaneously.

[0029] Preferably, it further includes: configuring a spray system to cool down the high-temperature fluid in the pipeline, and the spray system is connected to the control system; wherein, when the inlet temperature of the high-temperature fluid in the pipeline Tg > Tb, the control system controls the spray system to work, wherein Tb is greater than Ta.

[0030] Preferably, a temperature sensor is installed at the cooling passage, and the temperature sensor is connected to the control system; wherein,

[0031] Temperature sensors are used to detect the inlet and outlet water temperatures of the cooling path and feed them back to the control system to obtain the return water temperature difference ΔT. The control system adjusts the cooling water volume of the cooling path according to the return water temperature difference ΔT.

[0032] Preferably, the drive system is a pneumatic system or an electric motor drive system.

[0033] Preferably, the drive system is a hydraulic power system.

[0034] Preferably, the hydraulic power system includes hydraulic circuits and power output components; wherein,

[0035] The hydraulic circuit is connected to the valve body and is used for hydraulic oil regulation and control;

[0036] The power take-off component can be slidably mounted inside the valve body sidewall and acts on the valve core assembly;

[0037] The power output component is connected to the hydraulic circuit. Hydraulic oil enters the hydraulic circuit to provide driving force to the power output component, thereby driving the valve core assembly to move and adjust the valve body opening.

[0038] Preferably, the control system adjusts the pressure of the hydraulic power system based on the feedback signal of the high-temperature fluid inlet in the pipeline to change the stroke of the power output component, thereby achieving the valve body flow regulation requirements.

[0039] Preferably, it further includes: a linear displacement sensor, which is connected to the control system and the hydraulic power system; wherein,

[0040] The movement of the power output component of the hydraulic power system causes a change in the feedback signal of the linear displacement sensor. The control system acquires the feedback signal, compares it with the control signal, and calculates the difference. Based on the difference, the control system controls the hydraulic power system to adjust the stroke of the power output component.

[0041] Preferably, the stroke adjustment accuracy of the power output component meets ±5‰FS, and the flow adjustment accuracy of the valve body meets ±1%FS.

[0042] Preferably, the inner diameter of the valve body is in the range of 100mm to 800mm.

[0043] Preferably, it further includes: a bracket for mounting the valve body, wherein a moving track is provided between the bracket and the valve body, and the moving track includes a pressure-bearing track and a guide track; wherein,

[0044] The pressure-bearing rail is located at the bottom of the transmission assembly to support its movement;

[0045] Guide rails are located on both sides of the transmission assembly to guide its movement.

[0046] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0047] 1. The control system in this invention can realize intelligent regulation of cooling water flow and safety protection interlock; the drive system can adjust the valve opening to achieve rapid response; the high-temperature pipeline regulation system in this invention can adopt different cooling methods and optimized combinations of flow according to different temperatures in the pipeline to meet the cooling and rapid regulation functions at different temperatures, and use intelligent regulation to achieve the safety and economy of the valve body.

[0048] 2. This invention employs an axial flow structure, which minimizes backflow and eddy currents at the outlet of the high-temperature fluid, resulting in smoother flow and lower flow resistance. The water-cooled jacket structure on the high-temperature fluid side effectively removes heat transferred from the high-temperature fluid to the metal wall of the valve body, maintaining the metal wall temperature within the material's allowable range. This effectively prevents switching jamming caused by thermal deformation of the valve body's internal materials. It can be designed with various flow characteristics to meet different operating conditions, offering a wide adjustment range. The linear stroke adjustment method ensures high overall rigidity of the force transmission components and minimal deformation, reducing the valve body's dead zone and basic error, thereby improving the valve's adjustment accuracy.

[0049] 3. This invention fully utilizes the high heat transfer performance of water. Through water cooling and aerodynamic design, it ensures stable gas flow after the valve at high temperatures and can also work in conjunction with the ejector, all within a compact valve body structure.

[0050] 4. This invention enables temperature control of a high-temperature pipeline regulating system. Specifically, while cooling the valve body, it also achieves effective cooling of the high-temperature fluid, providing favorable conditions for subsequent processing. On one hand, it solves the problem in existing high-temperature pipeline regulating systems that lack a cooling structure, leading to overheating after prolonged use and affecting normal operation. This invention slows down structural damage and aging, extending service life. On the other hand, the segmented cooling structure in this invention provides better cooling than a single-stage cooling system. It fully utilizes the cooling water to remove heat, resulting in more uniform heat exchange, improved cooling efficiency, and avoids weakened cooling effect due to excessively long flow paths of the cooling water within the valve body. Furthermore, the segmented cooling design simplifies the overall structure, facilitates manufacturing, and reduces costs.

[0051] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description

[0052] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0053] Figure 1 This is a schematic diagram of the overall structure of the high-temperature pipeline regulation system in this invention;

[0054] Figure 2 This is a side view of the high-temperature pipeline regulation system in this invention;

[0055] Figure 3 This is a cross-sectional view of the valve body in this invention;

[0056] Figure 4 This is a cross-sectional view of the flange assembly in this invention;

[0057] Figure 5 This is a schematic diagram of the structure of the first cooling passage in this invention;

[0058] Figure 6 This is a schematic diagram of the working state of the power output component in this invention;

[0059] Figure 7a This is a schematic diagram of the working state of the hydraulic oil circuit and power output components in this invention;

[0060] Figure 7b This is a schematic diagram of the motion state of the power output component driven by the hydraulic circuit in this invention. Figure 1 ;

[0061] Figure 7c This is a schematic diagram of the motion state of the power output component driven by the hydraulic circuit in this invention. Figure 2 ;

[0062] Figure 8 This is a schematic diagram of the assembly structure of the flange assembly, transmission assembly and valve core assembly in this invention;

[0063] Figure 9 This is a schematic diagram of the assembly structure of the transmission component and the valve core component in this invention;

[0064] Figure 10 This is a cross-sectional view of the valve core assembly and the fixed shaft in this invention;

[0065] Figure 11 for Figure 10 Enlarged view of point A;

[0066] Figure 12 This is a cross-sectional view of the support ring in this invention;

[0067] Figure 13 This is a schematic diagram of the support structure in this invention;

[0068] Figure 14 This is a flowchart of the cooling water flow control process in this invention;

[0069] Figure 15 This is a schematic diagram of the hydraulic power system control process in this invention;

[0070] Figure 16 This is a modular schematic diagram of the high-temperature pipeline regulation system in this invention.

[0071] In the diagram: 1. High-temperature pipeline regulation system;

[0072] 10. Valve body; 11. Flange assembly; 111. Inner cylinder; 1111. First housing; 1112. Second housing; 1113. Third housing; 1114. Annular plate; 1115. Guide plate; 11151. Diverting channel; 1116. Warped section; 112. Outer cylinder; 1121. First hydraulic port; 1122. Second hydraulic port; 113. First conveying channel; 114. Hydraulic circuit; 1141. First hydraulic circuit; 1142. Second hydraulic circuit; 115. Power output component;

[0073] 12. Transmission assembly; 121. First support ring; 122. Second support ring; 123. Second conveying channel; 124. Fixed shaft; 1241. Water conveying channel;

[0074] 13. Valve core assembly; 131. Hollow layer; 132. First cylinder; 133. Second cylinder; 1331. Liquid inlet channel; 1332. Liquid outlet channel;

[0075] 20. Cooling water system; 21. First cooling passage; 211. First cooling channel; 212. Second cooling channel; 213. Third cooling channel; 22. Second cooling passage; 221. Fourth cooling channel; 222. Fifth cooling channel; 23. Third cooling passage; 24. Water system assembly; 241. First water system assembly; 2411. First inlet pipe; 2412. First outlet pipe; 242. Second water system assembly; 2421. Second inlet pipe; 2422. Second outlet pipe; 243. Third water system assembly; 2431. Third inlet pipe; 2432. Third outlet pipe; 25. Control valve; 26. Flow meter; 27. Main inlet pipe; 28. Main outlet pipe;

[0076] 30. Hydraulic oil control device;

[0077] 40. Support frame; 41. Moving track; 411. Pressure-bearing track; 412. Guide track; 42. Side plate;

[0078] DN, inner diameter of valve body; Tg, inlet temperature of high-temperature fluid in pipeline; △T, return water temperature difference; T1, inlet water temperature of the first cooling passage; T2, outlet water temperature of the first cooling passage; T3, inlet water temperature of the second cooling passage; T4, outlet water temperature of the second cooling passage; T5, inlet water temperature of the third cooling passage; T6, outlet water temperature of the third cooling passage; Q1, initial water flow rate; Q2, current water flow rate; △Q, cooling water adjustment amount. Detailed Implementation

[0079] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0080] In the accompanying drawings, shapes and dimensions may be enlarged for clarity, and the same reference numerals will be used in all figures to indicate the same or similar parts.

[0081] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower are defined relative to the structure shown in the accompanying drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These are relative concepts and may vary depending on their location and usage. Therefore, these or other orientations should not be interpreted as restrictive terms.

[0082] Terms involving attachment, connection, etc. (e.g., “connection” and “attachment”) refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through an intermediate structure, as well as movable or rigid attachments or relationships, unless otherwise explicitly stated.

[0083] Example 1

[0084] This invention provides a high-temperature pipeline regulation system, combined with Figure 1-16 As shown, it includes:

[0085] Valve body 10, which is connected to a pipe for conveying high-temperature fluid to regulate its flow rate;

[0086] Cooling water system 20, the cooling water system 20 includes multiple cooling passages arranged sequentially inside the valve body 10 along the high temperature fluid transport path;

[0087] The drive system is used to adjust the valve body opening degree 10.

[0088] The control system controls the cooling water circuit system 20 and the drive system.

[0089] The control system matches the cooling method and / or cooling flow rate of the cooling water system according to the temperature of the high-temperature fluid in the pipeline.

[0090] The control system can realize intelligent adjustment of cooling water flow and safety protection interlock; the drive system can realize rapid response; furthermore, the control system can combine the cooling method and the flow rate of high-temperature fluid according to the temperature of the high-temperature fluid in the pipeline.

[0091] This invention employs different cooling methods and optimized combinations of flow rates based on the different temperatures of high-temperature fluids to meet the cooling and rapid regulation functions at different temperatures. It also utilizes intelligent regulation to achieve the safety and economy of the high-temperature pipeline regulation system 1.

[0092] This invention employs an axial flow structure, which minimizes backflow and eddy currents at the outlet of the high-temperature fluid, resulting in smoother flow and lower flow resistance. The water-cooled jacket structure on the high-temperature fluid side effectively removes heat transferred from the high-temperature fluid to the metal wall of the valve body 10, maintaining the metal wall temperature within the material's allowable range. This effectively prevents sticking caused by thermal deformation of the valve body 10's internal materials. It can be designed with various flow characteristics to meet different operating conditions, offering a wide adjustment range. The linear stroke adjustment method ensures high overall rigidity of the force transmission components and minimal deformation, reducing the dead zone and basic error of the valve body 10, thereby improving the adjustment accuracy of the valve body 10.

[0093] Furthermore, by fully utilizing the high heat transfer performance of water, and through water cooling and aerodynamic design, the gas flow behind the high-temperature valve body 10 is kept stable under the premise of a compact valve body 10 structure, and it can also work together with the ejector.

[0094] Furthermore, the cooling water system 20 includes a first cooling passage 21, a second cooling passage 22 and a third cooling passage 23 to provide segmented cooling for the valve body 10.

[0095] Specifically, the first cooling passage 21, the second cooling passage 22, and the third cooling passage 23 are disposed inside the valve body 10 and arranged in a way that surrounds the high-temperature fluid inside the valve body 10. When the first cooling passage 21, the second cooling passage 22, and the third cooling passage 23 are filled with cooling water, the cooling water inside the valve body 10 exchanges heat with the high-temperature fluid, achieving a good cooling effect while cooling the valve body 10, thus providing favorable conditions for subsequent processing. On the one hand, this solves the problem in the prior art where the high-temperature pipeline regulating system 1 lacks a cooling structure, leading to high temperatures after prolonged use and affecting normal operation. It slows down the damage and aging of the high-temperature pipeline regulating system 1, extends its service life, and effectively reduces the manufacturing and operating costs of the high-temperature pipeline regulating system 1 for different situations. On the other hand, the segmented cooling structure in this invention has a better cooling effect than the single-stage cooling structure, making full use of the cooling water to remove heat, resulting in more uniform heat exchange, improved cooling efficiency, and avoiding weakening of the effect due to the excessively long flow path of the cooling water inside the valve body 10. At the same time, the segmented cooling design simplifies the overall structure, facilitates processing and production, and reduces costs.

[0096] Furthermore, the valve body 10 includes:

[0097] Flange assembly 11 is used to form a fixed mounting end of valve body 10;

[0098] The transmission assembly 12 is movably mounted to the flange assembly 11 to form the movable end of the valve body 10;

[0099] Valve core assembly 13 is fixedly installed inside the transmission assembly 12 and extends into the flange assembly 11;

[0100] The transmission assembly 12 is moved by the drive system to drive the valve core assembly 13 to move relative to the flange assembly 11, so as to adjust the gap between the valve core assembly 13 and the flange assembly 11, thereby realizing flow regulation.

[0101] The first cooling passage 21 is provided on the flange assembly 11, the second cooling passage 22 is provided on the transmission assembly 12, and the third cooling passage 23 is provided on the valve core assembly 13.

[0102] Furthermore, the first cooling passage 21 is located inside the side wall of the flange assembly 11 and is arranged to surround the high-temperature fluid transport path;

[0103] The second cooling passage 22 is located inside the side wall of the transmission assembly 12 and surrounds the valve core assembly 13 and the mating point between the valve core assembly 13 and the flange assembly 11.

[0104] The third cooling passage 23 is located on the outer surface of the valve core assembly 13 and is arranged to cover the outer surface of the valve core assembly 13.

[0105] When the cooling water system 20 supplies cooling water to the valve body 10, the cooling water sequentially performs primary cooling on the valve body 10 in the first cooling passage 21, secondary cooling on the valve body 10 in the second cooling passage 22, and tertiary cooling on the valve body 10 in the third cooling passage 23, thereby realizing the temperature control function of the high-temperature pipeline regulation system 1.

[0106] Flange assembly 11, combined Figure 3-8 As shown, it has a cylindrical structure, including an inner cylinder 111 and an outer cylinder 112 sleeved outside the inner cylinder 111. The inner cylinder 111 has a first conveying channel 113 extending axially to convey a high-temperature flowing medium. Figure 3 The arrow at the first conveying channel 113 indicates the direction of high-temperature fluid flow. The first cooling passage 21 is located inside the side wall of the inner cylinder 111 and close to the first conveying channel 113 to enhance the cooling effect on the first conveying channel 113.

[0107] The first cooling passage 21 includes a first cooling channel 211, a second cooling channel 212, and a third cooling channel 213 connected in sequence. The first cooling channel 211 is arranged in a ring at the end of the inner cylinder 111 furthest from the valve core assembly 13 and is connected to the water inlet structure. The second cooling channel 212 and the third cooling channel 213 extend axially along the inner cylinder 111, with the second cooling channel 212 located inside the third cooling channel 213, which is connected to the water outlet structure. After entering the first cooling channel 211, cooling water flows to the second cooling channel 212. The second cooling channel 212 transports the cooling water to the other end of the inner cylinder 111 and then into the third cooling channel 213. The cooling water then exits the inner cylinder 111 through the third cooling channel 213 to cool the first conveying channel 113. Figure 3 Arrow at water joint and Figure 5The middle arrow indicates the direction of the cooling water path. Specifically, the first cooling channel 211 is located at the front end of the inner cylinder 111 and cools the inlet end of the first conveying channel 113. The second cooling channel 212 extends from the first cooling channel 211 to the end of the inner cylinder 111 and is arranged to surround the first conveying channel 113. The third cooling channel 213 is connected to the second cooling channel 212 at the end of the inner cylinder 111 and extends to the front end of the inner cylinder 111. The third cooling channel 213 surrounds the second cooling channel 212 and connects to the water outlet structure near the front end of the inner cylinder 111.

[0108] Furthermore, the inner cylinder 111 includes a first shell 1111, a second shell 1112, a third shell 1113, and an annular plate 1114 located at the end of the inner cylinder 111, which are sequentially arranged outwards; wherein,

[0109] The first housing 1111 is used to pass through and provide the first conveying channel 113;

[0110] The second housing 1112 is located outside the first housing 1111 and is clamped to the first housing 1111 to form a second cooling channel 212;

[0111] The third housing 1113 is located outside the second housing 1112 and is clamped to the second housing 1112 to form a third cooling channel 213;

[0112] The annular plate 1114 and the third housing 1113 are clamped together to form the first cooling channel 211.

[0113] Specifically, the first shell 1111, the second shell 1112, and the third shell 1113 are all cylindrical structures. The annular plate 1114 and the second shell 1112 are located at the same radial position on the inner cylinder 111, and the annular plate 1114 is installed between the first shell 1111 and the third shell 1113. That is, the annular plate 1114 and the second shell 1112, together with the first shell 1111, form a second cooling channel 212. The front end of the third shell 1113 is clamped with the annular plate 1114 to form a first cooling channel 211. The annular plate 1114 has a through hole to connect the first cooling channel 211 and the second cooling channel 212, and cooling water enters the first cooling channel 211. Then, it flows through the through hole to the second cooling channel 212; further, the inner cylinder 111 also includes an annular guide plate 1115, the guide plate 1115 is located at the end of the inner cylinder 111 and is fixedly connected to the second shell 1112 and the third shell 1113 respectively. The guide plate 1115 has a plurality of diversion channels 11151 along the axial direction. One end of the diversion channel 11151 is connected to the second cooling channel 212 and the other end is connected to the third cooling channel 213. When the cooling water in the second cooling channel 212 reaches the end of the inner cylinder 111 along the axial direction, the cooling water enters the diversion channel 11151 of the guide plate 1115 and is then transported to the third cooling channel 213 by the diversion channel 11151. In this embodiment, the first cooling channel 211, the second cooling channel 212, and the third cooling channel 213 are integrally formed in the inner cylinder 111, eliminating the need for additional piping structures, reducing structural complexity, lowering costs, and resulting in a higher degree of integration of the overall structure.

[0114] Furthermore, the inner cylinder 111 extends outward at its end to form a warped portion 1116, which is used to mount the valve core assembly 13. The flow rate of the high-temperature fluid is adjusted by controlling the size of the gap between the valve core assembly 13 and the warped portion 1116. A second cooling channel 212 extends into the warped portion 1116 to cool it, preventing damage or aging of the structure between the valve core assembly 13 and the warped portion 1116 due to prolonged high temperatures, effectively extending its service life and improving the accuracy of flow control.

[0115] Valve core assembly 13, combined with Figure 8-11As shown, the valve core assembly 13 has a hollow layer 131 inside, which is filled with cooling water and forms a third cooling passage 23. Specifically, the valve core assembly 13 includes a first cylinder 132 and a second cylinder 133, which together form the hollow layer 131. The second cylinder 133 is located inside the first cylinder 132, which forms the outer shell structure of the valve body 10 and is used to cooperate with the flange assembly 11 to regulate the flow rate of high-temperature fluid. When high temperature accumulates on the surface of the first cylinder 132, the cooling water in the hollow layer 131 absorbs the heat on the first cylinder 132 and is discharged outside the valve body 10 assembly, thereby achieving the effect of cooling and temperature control.

[0116] Furthermore, it also includes: an inlet channel 1331 and an outlet channel 1332 formed within the second cylinder 133; wherein,

[0117] The liquid inlet channel 1331 is connected to the water inlet structure and the hollow layer 131 respectively, and is used to guide the cooling water into the hollow layer 131;

[0118] The liquid outlet channel 1332 is connected to the water outlet structure and the hollow layer 131 respectively, and is used to guide the cooling water out of the hollow layer 131.

[0119] Specifically, the liquid inlet channel 1331 is located on the central axis of the second cylinder 133 and extends to the end of the second cylinder 133 to communicate with the hollow layer 131; the liquid outlet channel 1332 extends to the other end of the second cylinder 133 and communicates with the hollow layer 131 at the other end of the second cylinder 133. In this embodiment, three liquid outlet channels 1332 are included, which are distributed around the central axis of the second cylinder 133. Cooling water is input into the liquid inlet channel 1331 through the water inlet structure and flows along the liquid inlet channel 1331 to one end of the second cylinder 133. Then, the cooling water flows into the hollow layer 131 and flows along the hollow layer 131 to the other end of the second cylinder 133, and enters the liquid outlet channel 1332 there, and then is discharged to the outside of the valve core assembly 13.

[0120] Transmission assembly 12, combined Figure 8 , Figure 9 and Figure 12 As shown, it has a ring-shaped structure and forms a second conveying channel 123. The valve core assembly 13 and the transmission assembly 12 are installed and located in the second conveying channel 123. High-temperature fluid flows between the transmission assembly 12 and the valve core assembly 13. The transmission assembly 12 includes a first support ring 121 and a second support ring 122 that are fixedly connected to each other. The first support ring 121 is used to install the valve core assembly 13, and the second support ring 122 is connected to the flange assembly 11.

[0121] At least four fixed shafts 124 are mounted on the first support ring 121. Each fixed shaft 124 passes radially through the side wall of the first support ring 121 and connects to the valve core assembly 13 to fix the valve core assembly 13 to the first support ring 121. In this embodiment, four fixed shafts 124 are provided, which are evenly distributed around the valve core assembly 13 to ensure that the valve core assembly 13 is subjected to uniform force, thereby improving the stability and reliability of the overall structure. Furthermore, a water conveying channel 1241 is formed inside the fixed shaft 124. The four fixed shafts 124 extend into the interior of the valve core assembly 13 to communicate with one inlet channel 1331 and three outlet channels 1332 respectively, forming a flow guiding structure for the inlet channel 1331 and the outlet channel 1332.

[0122] A fourth cooling channel 221 is formed in the first support ring 121, and a fifth cooling channel 222 is formed in the second support ring 122. A guide hole is provided between the first support ring 121 and the second support ring 122. Cooling water enters the fourth cooling channel 221 and then enters the fifth cooling channel 222 through the guide hole to form a second cooling passage 22. The fourth cooling channel 221 and the fifth cooling channel 222 surround the second conveying channel 123 to cool and control the temperature of the high-temperature fluid flowing between the transmission assembly 12 and the valve core assembly 13.

[0123] In one embodiment, the cooling water flow rates in the first cooling passage 21, the second cooling passage 22, and the third cooling passage 23 can all be adjusted independently. Figure 1 The middle arrows indicate the water inlet and outlet directions of the first cooling passage 21, the second cooling passage 22, and the third cooling passage 23.

[0124] Furthermore, such as Figure 1 and Figure 2 As shown, the cooling water system 20 also includes at least three sets of adjustable flow water components 24. The three sets of water components 24 are respectively connected to the first cooling passage 21, the second cooling passage 22 and the third cooling passage 23 to achieve independent control of the cooling water flow.

[0125] The operator can control the water circuit component 24 as needed to regulate the flow rate of cooling water, thereby strengthening or weakening the cooling effect. In this way, if the temperature of the flange component 11, transmission component 12, or valve core component 13 in the valve body 10 rises, the cooling water volume of this part can be precisely controlled to regulate the cooling intensity and achieve segmented cooling. Its structure is simple, the manufacturing cost is low, it achieves the purpose of flexible adjustment, and the operation is simple and easy, which can play the most important function of segmented cooling.

[0126] Specifically, the water circuit assembly 24 includes a first water circuit assembly 241, a second water circuit assembly 242, and a third water circuit assembly 243. The first water circuit assembly 241 is connected to a first cooling passage 21 disposed within the flange assembly 11, the second water circuit assembly 242 is connected to a second cooling passage 22 disposed within the transmission assembly 12, and the third water circuit assembly 243 is connected to a third cooling passage 23 disposed within the valve core assembly 13. The first water circuit assembly 241 includes a first inlet pipe 2411 and a first outlet pipe 2412, both of which are connected to the flange assembly 11 near its end. The first inlet pipe 2411 is connected to the bottom of the flange assembly 11. The first cooling channel 211 is connected to the first water outlet pipe 2412, which is located at the top of the flange assembly 11 and is connected to the third cooling channel 213. The second water channel assembly 242 includes a second water inlet pipe 2421 and a second water outlet pipe 2422, which are located at both ends of the transmission assembly 12. The second water inlet pipe 2421 is connected to the fourth cooling channel 221, and the second water outlet pipe 2422 is connected to the fifth cooling channel 222. The third water channel assembly 243 includes a third water inlet pipe 2431 and a third water outlet pipe 2432. The third water inlet pipe 2431 is connected to the liquid inlet channel 1331, and the third water outlet pipe 2432 is connected to the liquid outlet channel 1332.

[0127] Furthermore, control valves 25 and flow meters 26 are provided at the ends of the first water inlet pipe 2411, the second water inlet pipe 2421 and the third water inlet pipe 2431, respectively, to control the flow rate of cooling water in the first cooling passage 21, the second cooling passage 22 and the third cooling passage 23.

[0128] Furthermore, it also includes: an inlet main pipe 27 and an outlet main pipe 28. The inlet main pipe 27 supplies water to the first inlet pipe 2411, the second inlet pipe 2421 and the third inlet pipe 2431, and the outlet main pipe 28 forms a drainage structure of the first outlet pipe 2412, the second outlet pipe 2422 and the third outlet pipe 2432.

[0129] In one embodiment, the control system adjusts the cooling mode of the cooling water system 20 based on feedback from the inlet temperature signal of the high-temperature fluid in the pipeline; the cooling mode includes single-stage cooling or multi-stage combined cooling, wherein,

[0130] When the inlet temperature of the high-temperature fluid in the pipeline is Tg≤Ta, the first cooling passage 21 is controlled to work independently.

[0131] When the inlet temperature of the high-temperature fluid in the pipeline, Tg > Ta, the first cooling passage 21, the second cooling passage 22 and the third cooling passage 23 are controlled to work simultaneously.

[0132] Furthermore, it also includes: configuring a spray system to cool down the high-temperature fluid in the pipeline, and the spray system is connected to the control system; wherein, when the inlet temperature of the high-temperature fluid in the pipeline Tg > Tb, the control system controls the spray system to work, wherein Tb is greater than Ta.

[0133] Furthermore, when the gas inlet temperature Tg > Ta, the first cooling passage 21, the second cooling passage 22 and the third cooling passage 23 are controlled to work simultaneously. A thermal barrier coating or a combination thereof can be added. As the fluid temperature inside the pipeline increases, the cooling water flow rate is intelligently regulated according to its signal feedback. When the gas inlet temperature increases to above Tb, a thermal barrier coating, spray water or a combination thereof can be added to achieve the safety and durability of the valve body 10.

[0134] Among them, Ta can be set to 550℃ and Tb to 900℃.

[0135] In some preferred embodiments, a temperature sensor is provided at the cooling passage, and the temperature sensor is connected to the control system; wherein,

[0136] Temperature sensors are used to detect the inlet and outlet water temperatures of the cooling path and feed them back to the control system to obtain the return water temperature difference ΔT. The control system adjusts the cooling water volume of the cooling path according to the return water temperature difference ΔT.

[0137] Specifically, the return water temperature difference ΔT of the first cooling passage 21 can be obtained from the inlet water temperature T1 and the outlet water temperature T2 using the formula ΔT = T2 - T1; the return water temperature difference ΔT of the second cooling passage 22 can be obtained from the inlet water temperature T3 and the outlet water temperature T4 using the formula ΔT = T4 - T3; and the return water temperature difference ΔT of the third cooling passage 23 can be obtained from the inlet water temperature T5 and the outlet water temperature T6 using the formula ΔT = T6 - T5.

[0138] Taking the first cooling passage 21 as an example, such as Figure 14 As shown, the control method of the high-temperature pipeline regulation system 1 includes:

[0139] The temperature sensors detect the inlet water temperature T1 and the outlet water temperature T2 respectively, and feed them back to the control system.

[0140] The control system calculates the return water temperature difference ΔT using the formula ΔT = T2 - T1.

[0141] Determine whether the return water temperature difference ΔT satisfies Tc < ΔT <Td;

[0142] If so, then control the cooling water system 20 and the drive system to maintain their current operating state;

[0143] If not, then determine whether △T satisfies △T≥Td;

[0144] If the condition is not met, the cooling water circuit system 20 is controlled to adjust the cooling water flow rate according to the formula Q2 = Q1 - ΔQ, where Q1 is the initial water flow rate, ΔQ is the cooling water adjustment amount, and Q2 is the current water flow rate. That is, the cooling water adjustment amount ΔQ is reduced based on the initial water flow rate Q1 to obtain the current water flow rate Q2.

[0145] If satisfied, then continue to determine whether △T satisfies △T≥Te;

[0146] If △T≥Te, then the cooling water circuit system 20 adjusts the cooling water flow rate according to the formula Q2=Q1+△Q, where Q1 is the initial water flow rate, △Q is the cooling water adjustment amount, and Q2 is the current water flow rate. That is, the cooling water adjustment amount △Q is added to the initial water flow rate Q1 to obtain the current water flow rate Q2.

[0147] If △T does not satisfy △T≥Te, an alarm will be issued.

[0148] In one embodiment, Tc can be 20°C or 30°C, Td can be 60°C, and Te can be 65°C. The specific values ​​of Tc, Td, and Te can be set according to actual working requirements.

[0149] It should be understood that Q1, Q2 and ΔQ are parameters introduced to facilitate the description of the cooling water flow regulation process. Their values ​​and ranges vary with design requirements and actual usage needs. They should not be specifically limited, nor should their meanings or concepts be misunderstood or cause ambiguity in the technical solution.

[0150] The first cooling passage 21, the second cooling passage 22 and the third cooling passage 23 are all equipped with the aforementioned temperature sensors and the cooling water safety protection is achieved through the aforementioned control method.

[0151] In one embodiment, the drive system is a pneumatic system or an electric motor drive system.

[0152] In yet another embodiment, the drive system is a hydraulic power system.

[0153] In one embodiment, combined with Figure 5 , Figure 6 and Figure 7a As shown, the hydraulic power system includes a hydraulic oil circuit 114 and a power output component 115; wherein,

[0154] The hydraulic oil circuit 114 is connected to the valve body 10. Specifically, the hydraulic oil circuit 114 is connected to the flange assembly 11, and the hydraulic oil circuit 114 is located outside the first cooling passage 21.

[0155] The power output component 115 is slidably mounted inside the side wall of the valve body 10 and acts on the valve core assembly 13. Specifically, the end of the power output component 115 is connected to the transmission assembly 12.

[0156] The power output component 115 is connected to the hydraulic oil circuit 114. Hydraulic oil enters the hydraulic oil circuit 114 to provide driving force for the power output component 115 to drive the transmission component 12 to move, thereby driving the valve core assembly 13 to move to regulate the flow rate of the high-temperature fluid.

[0157] Specifically, the hydraulic oil circuit 114 is located between the outer cylinder 112 and the inner cylinder 111, and is situated outside the third cooling channel 213. This isolates the second cooling channel 212 from the hydraulic oil circuit 114 by the third cooling channel 213, preventing changes in hydraulic oil temperature from affecting the cooling water and thus reducing the cooling effect. The power output component 115 is fixedly connected to the second support ring 122 of the transmission assembly 12.

[0158] Furthermore, the hydraulic oil circuit 114 is connected to the hydraulic oil control device 30 to adjust the oil volume within the hydraulic oil circuit 114; the outer cylinder 112 is also provided with a first hydraulic port 1121 and a second hydraulic port 1122 communicating with the hydraulic oil circuit 114, and the first hydraulic port 1121 and the second hydraulic port 1122 are respectively located at both ends of the outer cylinder 112; wherein,

[0159] The first hydraulic port 1121 supplies hydraulic oil to the front end of the power output component 115;

[0160] The second hydraulic port 1122 supplies hydraulic oil to the outer wall of the power output component 115;

[0161] The hydraulic oil control device 30 adjusts the oil volume in the hydraulic oil circuit 114 and generates a pressure difference at the first hydraulic port 1121 and the second hydraulic port 1122 to drive the power output component 115 to extend or retract, thereby driving the valve core assembly 13 to move.

[0162] Specifically, after the power output component 115 is installed in the hydraulic circuit 114, the hydraulic circuit 114 is divided into a first hydraulic circuit 1141 and a second hydraulic circuit 1142. The first hydraulic circuit 1141 is connected to the first hydraulic port 1121, and the second hydraulic circuit 1142 is connected to the second hydraulic port 1122. Figure 7b The middle arrows indicate the respective hydraulic oil flow directions at the first hydraulic port 1121 and the second hydraulic port 1122. When oil enters the first hydraulic oil circuit 1141 and returns to the second hydraulic oil circuit 1142, it drives the power output component 115 to push the transmission assembly 12 outward. Figure 7cThe middle arrows indicate the respective hydraulic oil flow directions at the first hydraulic port 1121 and the second hydraulic port 1122. When oil returns from the first hydraulic circuit 1141 and enters the second hydraulic circuit 1142, the drive power output component 115 resets, thereby resetting the transmission assembly 12. This configuration provides a smooth thrust to the transmission assembly 12 and the valve core assembly 13, enabling stepless adjustment of pressure and flow, simplifying the control structure of the valve core assembly 13 while improving control accuracy.

[0163] In one embodiment, the control system adjusts the pressure of the hydraulic power system based on the feedback of the high-temperature fluid inlet temperature signal in the pipeline to change the stroke of the power output component 115, thereby achieving the flow regulation requirements of the valve body 10.

[0164] Furthermore, it also includes: a linear displacement sensor, which is connected to the control system and the hydraulic power system; wherein,

[0165] The movement of the power output component 115 of the hydraulic power system causes a change in the feedback signal of the linear displacement sensor. The control system acquires the feedback signal, compares it with the control signal, and calculates the difference. The control system then controls the hydraulic power system to adjust the stroke of the power output component 115 based on the difference.

[0166] Specifically, such as Figure 15 As shown, the host computer outputs the required control signal, which is compared with the output signal of the linear displacement sensor by a signal comparator to calculate the difference. The difference is then converted into a drive signal for the electro-hydraulic servo valve by a servo amplifier and input to the electro-hydraulic servo valve. The electro-hydraulic servo valve actuates, causing a change in the oil pressure at both ends of the hydraulic power system, which in turn causes the hydraulic power system to move axially. The movement of the power output component 115 of the hydraulic power system causes a change in the feedback signal of the linear displacement sensor. The new feedback signal is then compared with the control signal until the control signal and the feedback signal are the same or the error is within a certain range. The hydraulic power system then maintains this position, achieving a stable opening.

[0167] Furthermore, the stroke adjustment accuracy of the power output component 115 meets ±5‰FS, and the flow adjustment accuracy of the valve body 10 meets ±1%FS.

[0168] In one embodiment, the inner diameter DN of the valve body 10 ranges from 100 mm to 800 mm.

[0169] In one embodiment, combined with Figure 1-2 and Figure 13 As shown, it also includes: a bracket for mounting the valve body 10; a moving track 41 is provided between the bracket 40 and the valve body 10, and the moving track 41 includes a pressure-bearing track 411 and a guide track 412; wherein,

[0170] The pressure-bearing rail 411 is located at the bottom of the transmission assembly 12 to support the movement of the transmission assembly 12;

[0171] Guide rails 412 are located on both sides of the transmission assembly 12 to guide the movement of the transmission assembly 12.

[0172] By setting up a pressure-bearing rail 411 to directly bear the pressure from the transmission assembly 12 and the valve core assembly 13, the smoothness of the movement of the transmission assembly 12 is ensured. By setting up a guide rail 412 to guide the transmission assembly 12 and limit its offset, the straightness of the movement of the transmission assembly 12 is ensured, thereby ensuring the accuracy of the connection between the transmission assembly 12 and the pipeline.

[0173] Furthermore, side plates 42 are provided on both sides of the bracket 40, and the guide rail 412 is located between the side plates 42 and the transmission assembly 12 to enhance the stability of the overall structure.

[0174] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A high-temperature pipeline regulation system, characterized in that, include: The valve body is connected to a pipe used to transport high-temperature fluids to regulate their flow rate; A cooling water system, comprising multiple cooling passages sequentially arranged inside the valve body along the high-temperature fluid transport path; the cooling water system includes a first cooling passage, a second cooling passage, and a third cooling passage, for segmented cooling of the valve body; A drive system for adjusting the valve body opening; A control system that controls the cooling water system and the drive system; The control system matches the cooling method and / or cooling flow rate of the cooling water system according to the temperature of the high-temperature fluid in the pipeline. The valve body includes: A flange assembly for forming a fixed mounting end of the valve body; A transmission assembly, which is movably mounted to the flange assembly to form the movable end of the valve body; A valve core assembly, which is fixedly installed inside the transmission assembly and extends into the flange assembly; The drive system drives the transmission assembly to move, thereby causing the valve core assembly to move relative to the flange assembly, so as to adjust the gap between the valve core assembly and the flange assembly, thereby achieving flow regulation; The first cooling passage is disposed on the flange assembly, the second cooling passage is disposed on the transmission assembly, and the third cooling passage is disposed on the valve core assembly; The transmission assembly includes a first support ring and a second support ring that are fixedly connected to each other; wherein... The first support ring is used to mount the valve core assembly, and the second support ring is connected to the drive system; The first cooling passage is located inside the side wall of the flange assembly and is arranged to surround the high-temperature fluid transport path; The second cooling passage is located inside the side wall of the transmission assembly and surrounds the valve core assembly and the mating point between the valve core assembly and the flange assembly; The third cooling passage is located on the outer surface of the valve core assembly and is configured to cover the outer surface of the valve core assembly. When the cooling water circuit supplies cooling water to the valve body, the cooling water sequentially performs primary cooling on the valve body in the first cooling passage, secondary cooling on the valve body in the second cooling passage, and tertiary cooling on the valve body in the third cooling passage, thereby realizing the temperature control function of the high-temperature pipeline regulation system.

2. The high-temperature pipeline regulation system as described in claim 1, characterized in that, The control system adjusts the cooling mode of the cooling water system based on the feedback signal of the high-temperature fluid inlet temperature in the pipeline; the cooling mode includes single-stage cooling or multi-stage combined cooling, wherein... When the inlet temperature of the high-temperature fluid in the pipeline Tg is less than or equal to the preset temperature threshold Ta, the first cooling path is controlled to work independently. When the inlet temperature Tg of the high-temperature fluid in the pipeline is greater than the preset temperature threshold Ta, the first cooling passage, the second cooling passage, and the third cooling passage are controlled to work simultaneously.

3. The high-temperature pipeline regulation system as described in claim 2, characterized in that, Also includes: A spray system is configured to cool down the high-temperature fluid in the pipeline, and the spray system is connected to the control system; wherein, when the inlet temperature Tg of the high-temperature fluid in the pipeline is greater than a preset temperature threshold Tb, the control system controls the spray system to work, wherein Tb is greater than Ta.

4. The high-temperature pipeline regulation system as described in claim 1, characterized in that: A temperature sensor is installed in the cooling passage, and the temperature sensor is connected to the control system; wherein... The temperature sensor is used to detect the inlet and outlet water temperatures of the cooling passage and feed them back to the control system to obtain the return water temperature difference ΔT. The control system adjusts the cooling water volume of the cooling passage according to the return water temperature difference ΔT.

5. The high-temperature pipeline regulation system as described in claim 1, characterized in that, The drive system is a pneumatic system or an electric motor drive system.

6. The high-temperature pipeline regulation system as described in claim 1, characterized in that, The drive system is a hydraulic power system.

7. The high-temperature pipeline regulating system as described in claim 6, characterized in that, The hydraulic power system includes hydraulic oil circuits and power output components; wherein... The hydraulic circuit is connected to the valve body and is used for hydraulic oil regulation and control; The power output component is slidably mounted inside the side wall of the valve body and acts on the valve core assembly; The power output component is connected to the hydraulic circuit. Hydraulic oil enters the hydraulic circuit to provide driving force to the power output component, thereby driving the valve core assembly to move and adjusting the valve body opening.

8. The high-temperature pipeline regulating system as described in claim 7, characterized in that, The control system adjusts the pressure of the hydraulic power system based on the feedback of the high-temperature fluid inlet temperature signal in the pipeline to change the stroke of the power output component, thereby achieving the valve body flow regulation requirements.

9. The high-temperature pipeline regulation system as described in claim 8, characterized in that, Also includes: A linear displacement sensor is connected to both the control system and the hydraulic power system; wherein... The movement of the power output component of the hydraulic power system causes a change in the feedback signal of the linear displacement sensor. The control system acquires the feedback signal, compares it with the control signal, and calculates the difference. The control system then controls the hydraulic power system to adjust the stroke of the power output component based on the difference.

10. The high-temperature pipeline regulation system as described in claim 9, characterized in that, The stroke adjustment accuracy of the power output component meets ±5‰FS, and the flow adjustment accuracy of the valve body meets ±1%FS; where FS represents full scale.

11. The high-temperature pipeline regulation system as described in claim 1, characterized in that: The inner diameter of the valve body ranges from 100mm to 800mm.

12. The high-temperature pipeline regulation system as described in claim 1, characterized in that, Also includes: A bracket is provided for mounting the valve body, and a moving track is provided between the bracket and the valve body, the moving track including a pressure-bearing track and a guide track; wherein, The pressure-bearing rail is located at the bottom of the transmission assembly to support the movement of the transmission assembly; The guide rails are located on both sides of the transmission assembly to guide the movement of the transmission assembly.

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