Intelligent adjusting type energy-saving and consumption-reducing integrated device

Through the design of the integrated device for energy-saving and consumption reduction, the problems of low waste heat recovery efficiency, long installation cycle and high fault maintenance rate of boilers are solved, efficient waste heat recovery and intelligent regulation are achieved, and the reliability and economical of the equipment are improved. benefit.

CN119436104APending Publication Date: 2025-02-14HARBIN HAGUO BOILER ENG TECH
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Patent Information

Application Number
CN202411892505.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

The existing boiler waste heat utilization devices have problems such as low recycling efficiency, long installation cycle and high cost, serious wear and corrosion, high fault maintenance rate, and inability to defragment separately. If the heated surface is damaged, it is necessary to shut down the machine for maintenance as a whole.

Method used

Design an intelligent adjustment-type integrated energy-saving and consumption-reducing device, including working fluid water supply system and pipe box, adopts a modular overall design, supports the parallel installation of multiple pipe boxes, and improves using special materials and structures (such as ND steel + external enamel) Corrosion resistance, realizes separate cracking of the flue gas and medium side, supports non-stop maintenance and peak-shaving operation, and realizes unattended intelligent adjustment through remote measurement points and intelligent valves.

Benefits of technology

The heat transfer efficiency of boiler waste heat recovery has been improved to 98%, the installation cycle has been shortened, the fault maintenance rate has been reduced, the service life of the equipment has been extended, and the maintenance and peak-shaving operation has been achieved, which has improved energy utilization efficiency and economic benefits.

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Abstract

The invention discloses an intelligent adjusting type energy-saving and consumption-reducing integrated device, and relates to the field of boiler waste heat utilization devices. The boiler flue gas device solves the problems that an existing boiler flue gas device is low in waste heat recovery efficiency, long in installation period and high in cost; abrasion and corrosion are serious, the utilization rate is low, and the troubleshooting rate is high; and if the heating surface is damaged, the whole machine needs to be shut down for maintenance. A working medium water supply pipeline is sequentially provided with a working medium inlet side splitting manual gate valve, a working medium water supply pipeline middle splitting electric gate valve and a working medium outlet side splitting manual gate valve from the inlet side to the outlet side. One ends of the working medium water inlet pipeline and the working medium water outlet pipeline are respectively connected with pipe sections on two sides of the electric gate valve for middle splitting of the working medium water supply pipeline on the working medium water supply pipeline, and the other ends of the working medium water inlet pipeline and the working medium water outlet pipeline are respectively connected with a pipe box medium side water inlet and a pipe box medium side water outlet. The device is used for improving the waste heat recovery efficiency and shortening the installation period.
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Description

Technical Field

[0001] The invention relates to the field of boiler waste heat utilization devices, and in particular to an intelligent adjustable energy-saving and consumption-reducing integrated device. Background Art

[0002] Existing boiler waste heat utilization devices are all shipped from the factory in scattered parts, and the on-site installation and construction period is long; they are prone to corrosion and have a high fault repair rate; the waste heat recovery efficiency is low (the heat transfer efficiency is generally between 89% and 90%), and the energy conservation and emission reduction effects are poor; they are not adjustable and do not meet the deep peak regulation requirements of boiler units, which is not conducive to the consumption of clean energy such as biomass and photovoltaics, and is not conducive to the realization of the strategic goals of "carbon peak and carbon neutrality". Summary of the invention

[0003] The purpose of the present invention is to solve the problems of existing boiler flue gas devices, such as low waste heat recovery efficiency, long installation period and high cost; severe wear and corrosion, low availability, high fault repair rate; inability to be cracked individually, and if the heating surface is damaged, the entire device needs to be shut down for maintenance, thereby providing an intelligent adjustable energy-saving and consumption-reducing integrated device.

[0004] The technical solution of the present invention is:

[0005] An intelligent regulating type energy-saving and consumption-reducing integrated device comprises a working fluid water supply system 100 and a pipe box 200. The working fluid water supply system 100 comprises a working fluid water supply pipeline 101, a manual gate valve 102 for decoupling at the working fluid inlet side, an electric gate valve 103 for decoupling in the middle of the working fluid water supply pipeline, a manual gate valve 104 for decoupling at the working fluid outlet side, a working fluid water inlet pipeline 105, a working fluid water outlet pipeline 106, an electric valve 107 for decoupling the working fluid water inlet pipeline, an electric valve 108 for decoupling the working fluid water outlet pipeline, a pipe box water inlet pipeline 109, a pipe box connecting pipeline 110 and a pipe box water outlet pipeline 111. The working fluid water supply pipeline 101 has a working fluid inlet and a working fluid outlet at both ends, respectively. The working fluid water supply pipeline 101 has a working fluid inlet and a working fluid outlet at both ends. A manual gate valve 102 for decoupling the working fluid on the inlet side, an electric gate valve 103 for decoupling the working fluid in the middle of the water supply pipeline and a manual gate valve 104 for decoupling the working fluid on the outlet side are provided in sequence from the inlet side to the outlet side. One end of a working fluid inlet pipeline 105 and a working fluid outlet pipeline 106 are respectively connected to the pipe sections on both sides of the working fluid water supply pipeline 101 located on the middle of the working fluid water supply pipeline. The other ends of the working fluid inlet pipeline 105 and the working fluid outlet pipeline 106 are respectively connected to the water inlet and outlet on the medium side of the pipe box 200. An electric valve 107 for decoupling the working fluid inlet pipeline and an electric valve 108 for decoupling the working fluid outlet pipeline are respectively provided on the water inlet side of the working fluid inlet pipeline 105 and the working fluid outlet pipeline 106.

[0006] Furthermore, the working fluid water supply system 100 also includes an electric gate valve 109 for disconnecting the working fluid water supply pipeline, a thermocouple 110 and a working fluid water supply pipeline pressure gauge 111. The working fluid water supply pipeline 101 is provided with an electric gate valve 109, a thermocouple 110 and a working fluid water supply pipeline pressure gauge 111 on the pipe section close to the working fluid outlet.

[0007] Further, the number of the pipe boxes 200 is a positive integer not less than 1.

[0008] Furthermore, the number of pipe boxes 200 is 1, the water inlet on the working fluid side of the pipe box 200 is connected to the working fluid water inlet pipe 105 through a pipe box connecting pipe, the water outlet on the working fluid side of the pipe box 200 is connected to the working fluid water outlet pipe 106 through a pipe box connecting pipe, and a pipe box water inlet pressure gauge is provided on the pipe box connecting pipe at the water inlet on the working fluid side of the pipe box 200.

[0009] Furthermore, there are multiple pipe boxes 200, and the multiple pipe boxes 200 are arranged between the working medium water inlet pipe 105 and the working medium water outlet pipe 106 in a manner of series connection, parallel connection, or a combination of series and parallel connection;

[0010] When multiple pipe boxes 200 are arranged in series, multiple pipe boxes 200 are connected end to end from the working fluid water inlet side to the working fluid water outlet side through multiple pipe box connecting pipes, the working fluid side water inlet of the pipe box 200 close to the working fluid water inlet side is connected to the working fluid water inlet pipe 105 through the pipe box connecting pipe, and the working fluid side water outlet of the pipe box 200 close to the working fluid water outlet side is connected to the working fluid water outlet pipe 106 through the pipe box connecting pipe, each pipe box connecting pipe is provided with a manual stop valve for disconnecting the pipe box connecting pipe, and the pipe box connecting pipe at the working fluid side water outlet of the pipe box 200 close to the working fluid water inlet pipe 105 is provided with a pipe box water inlet pressure gauge;

[0011] When multiple pipe boxes 200 are arranged in parallel, the working fluid side water inlets of the multiple pipe boxes 200 are respectively connected to the working fluid water inlet pipeline 105 through multiple pipe box connecting pipes, and the working fluid side water outlets of the multiple pipe boxes 200 are respectively connected to the working fluid water outlet pipeline 106 through multiple pipe box connecting pipes. Each pipe box connecting pipe is provided with a manual shut-off valve for disconnecting the pipe box connecting pipe, and a pipe box inlet pressure gauge is provided on the pipe box connecting pipe at the working fluid side water outlet of the pipe box 200 close to the working fluid water inlet pipeline 105.

[0012] Furthermore, it also includes a working medium decoupling system 300, which includes multiple decoupling bypasses 301 and multiple bypass decoupling manual stop valves 302. A decoupling bypass 301 is provided on the side of each pipe box 200, and both ends of the decoupling bypass 301 are respectively connected to the pipe box connecting pipes at the water inlet and outlet of the corresponding pipe box 200, and each decoupling bypass 301 is provided with a bypass decoupling manual stop valve 302.

[0013] Furthermore, the pipe box 200 includes an inlet header 201, an outlet header 202, an H-type heating surface tube group 203, an intermediate support tube sheet 204, a frame and a guard plate 205, and two end support tube sheets 206. The water inlet and outlet of the H-type heating surface tube group 203 are respectively connected to the inlet header 201 and the outlet header 202. The middle part of the heat exchange tube in the H-type heating surface tube group 203 is inserted into the tube hole of the intermediate support tube sheet 204. The two ends of the heat exchange tube in the H-type heating surface tube group 203 are respectively inserted into the tube holes of the two end support tube sheets 206. The intermediate support tube sheet 204 and the two end support tube sheets 206 are both installed on the frame and the guard plate 205.

[0014] Furthermore, the pipe box 200 also includes anti-wear dummy pipes 207 , and the windward side of the flue gas side heating surface is provided with 1 to 2 rows of anti-wear dummy pipes 207 , and the anti-wear dummy pipes 207 are installed on the middle supporting tube sheet 204 and the two end supporting tube sheets 206 .

[0015] Furthermore, the pipe box 200 also includes a smoke baffle 208 . The smoke inlet on the smoke side is provided with a smoke baffle 208 , and the smoke baffle 208 is installed on the frame and the guard plate 205 .

[0016] Furthermore, the H-type heating surface tube group 203 includes a double-coil serpentine tube panel and a plurality of fin groups. The double-coil serpentine tube panel is arranged in the flue. A plurality of fin groups are arranged on adjacent serpentine tube sections, and the fin surfaces are perpendicular to the longitudinal direction of the tube section.

[0017] Compared with the prior art, the present invention has the following effects:

[0018] 1. The present invention is shipped in a modularized whole. Considering the limitation of transportation size, it can be designed into multiple pipe boxes. During on-site installation, several pipe boxes are placed side by side. Only the pipe boxes and the supporting structures (steel sections) adjacent to the pipe boxes need to be sealed and welded. The workload of on-site welding is very small.

[0019] 2. The present invention adopts double-coil serpentine tubes composed of double H-shaped fin tubes with different fin spacing and heights in different smoke temperature zones to achieve the best heat exchange effect. After heat transfer calculation, numerical simulation, and experimental verification, the heat transfer efficiency reaches 98%.

[0020] 3. The present invention can be cracked separately on both the medium side and the flue gas side. If the heating surface is damaged, the damaged part can be cracked and repaired and replaced without stopping the machine, or it can cooperate with the peak load of the unit to select part of the operation at will. The replacement of a single module can be completed within 12 hours, saving boiler startup costs and increasing economic benefits.

[0021] 4. The key components of the present invention are made of specially customized "ND steel + external enamel", which is resistant to low dew point acid corrosion. Depending on the sulfur content in the fuel, the service life of the pipe can be increased by 200% to 700%.

[0022] 5. The device of the present invention realizes unattended operation and intelligent adjustment by setting remote measuring points, electric valves, etc.

[0023] 6. The present invention is applicable to various temperature ranges and working environments, has broad application prospects, and can greatly improve the efficiency of boiler waste heat recovery, save energy, and reduce pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an intelligent regulating energy-saving and consumption-reducing integrated device according to the present invention;

[0025] Figure 2 It is a front view of a pipe box in an intelligent adjustable energy-saving and consumption-reducing integrated device described in the present invention;

[0026] Figure 3 yes Figure 2 Cross-sectional view at AA-.

[0027] In the figure: 100, working fluid water supply system; 200, pipe box; 300, working fluid decoupling system; 101, working fluid water supply pipeline; 102, manual gate valve for decoupling on the working fluid inlet side; 103, electric gate valve for decoupling in the middle of the working fluid water supply pipeline; 104, manual gate valve for decoupling on the working fluid outlet side; 105, working fluid water inlet pipeline; 106, working fluid water outlet pipeline; 107, electric valve for decoupling of the working fluid water inlet pipeline; 108, decoupling of the working fluid water outlet pipeline Electric valve; 109, electric gate valve for disconnecting the working fluid water supply pipeline; 110, thermocouple; 111, pressure gauge for the working fluid water supply pipeline; 201, water inlet header; 202, water outlet header; 203, H-type heating surface tube group; 204, intermediate support tube sheet; 205, frame and guard plate; 206, end support tube sheet; 207, anti-wear dummy pipe; 208, flue gas damper; 301, bypass for disconnection; 302, manual stop valve for bypass disconnection. DETAILED DESCRIPTION

[0028] Specific implementation method 1: Combination Figures 1 to 3The present embodiment is described. The present embodiment is an intelligent regulating integrated energy-saving and consumption-reducing device, which includes a working fluid water supply system 100 and a pipe box 200. The working fluid water supply system 100 includes a working fluid water supply pipeline 101, a manual gate valve 102 for decoupling at the working fluid inlet side, an electric gate valve 103 for decoupling in the middle of the working fluid water supply pipeline, a manual gate valve 104 for decoupling at the working fluid outlet side, a working fluid water inlet pipeline 105, a working fluid water outlet pipeline 106, an electric valve 107 for decoupling the working fluid water inlet pipeline, an electric valve 108 for decoupling the working fluid water outlet pipeline, a pipe box water inlet pipeline 109, a pipe box connecting pipeline 110 and a pipe box water outlet pipeline 111. The working fluid water supply pipeline 101 has a working fluid inlet and a working fluid outlet at both ends, respectively. The water supply pipeline 101 is provided with a manual gate valve 102 for decoupling the working medium on the inlet side, an electric gate valve 103 for decoupling the working medium in the middle of the water supply pipeline, and a manual gate valve 104 for decoupling the working medium on the outlet side in sequence from the inlet side to the outlet side. One end of the working medium water inlet pipeline 105 and the working medium water outlet pipeline 106 are respectively connected to the pipe sections on both sides of the electric gate valve 103 for decoupling the working medium in the middle of the water supply pipeline on the working medium 101. The other ends of the working medium water inlet pipeline 105 and the working medium water outlet pipeline 106 are respectively connected to the water inlet and outlet on the medium side of the pipe box 200. The water inlet sides of the working medium water inlet pipeline 105 and the working medium water outlet pipeline 106 are respectively provided with an electric valve 107 for decoupling the working medium water inlet pipeline and an electric valve 108 for decoupling the working medium water outlet pipeline.

[0029] The entire device of the present invention can be divided into several groups of pipe boxes according to actual conditions. Each group of pipe boxes forms an independent system. The steam-water side is separately equipped with corrosion-resistant valves, and the flue gas inlet and outlet are equipped with manual or electric shut-off baffles. The steam-water side and the flue gas side can be disconnected separately, and maintenance can be achieved without stopping the unit. It is a new technical route for deep peak regulation of the unit and consumption of clean energy.

[0030] The device of the present invention can not only be arranged in the tail flue of the tail boiler to replace the conventionally used light tube or spiral fin tube and other extended heating surface economizers, but also can be arranged in the flue gas channel at the boiler outlet to further reduce the boiler exhaust temperature.

[0031] Specific implementation method 2: Combination Figures 1 to 3 To explain this embodiment, the working fluid water supply system 100 of this embodiment also includes an electric gate valve 109 for disconnecting the working fluid water supply pipeline, a thermocouple 110 and a working fluid water supply pipeline pressure gauge 111. The working fluid water supply pipeline 101 is provided with an electric gate valve 109 for disconnecting the working fluid water supply pipeline, a thermocouple 110 and a working fluid water supply pipeline pressure gauge 111 on the pipe section close to the working fluid outlet. With such a configuration, the device of the present invention can set remote measurement points such as flue gas temperature, working fluid temperature, and working fluid flow, measure the equipment operation curve, and compile a DCS control system. When the flue gas temperature changes, the water volume is automatically adjusted, and unattended and intelligent adjustment can be achieved. Other components and connection relationships are the same as those in the first specific embodiment.

[0032] Specific implementation method three: Combination Figures 1 to 3 To explain this embodiment, the number of the pipe boxes 200 in this embodiment is a positive integer not less than 1. Other components and connection relationships are the same as those in the first or second embodiment.

[0033] Specific implementation method four: Combination Figures 1 to 3 To explain this embodiment, the number of the pipe box 200 in this embodiment is 1, the working medium side water inlet of the pipe box 200 is connected to the working medium water inlet pipe 105 through the pipe box connecting pipe, the working medium side water outlet of the pipe box 200 is connected to the working medium water outlet pipe 106 through the pipe box connecting pipe, and a pipe box water inlet pressure gauge is provided on the pipe box connecting pipe at the working medium side water inlet of the pipe box 200. Other components and connection relationships are the same as those of the specific embodiments one, two or three.

[0034] Specific implementation method five: Combination Figures 1 to 3 To explain this embodiment, there are multiple pipe boxes 200 in this embodiment, and the multiple pipe boxes 200 are arranged between the working medium water inlet pipe 105 and the working medium water outlet pipe 106 in a manner of series connection, parallel connection, or a combination of series and parallel connection;

[0035] When multiple pipe boxes 200 are arranged in series, multiple pipe boxes 200 are connected end to end from the working fluid water inlet side to the working fluid water outlet side through multiple pipe box connecting pipes, the working fluid side water inlet of the pipe box 200 close to the working fluid water inlet side is connected to the working fluid water inlet pipe 105 through the pipe box connecting pipe, and the working fluid side water outlet of the pipe box 200 close to the working fluid water outlet side is connected to the working fluid water outlet pipe 106 through the pipe box connecting pipe, each pipe box connecting pipe is provided with a manual stop valve for disconnecting the pipe box connecting pipe, and the pipe box connecting pipe at the working fluid side water outlet of the pipe box 200 close to the working fluid water inlet pipe 105 is provided with a pipe box water inlet pressure gauge;

[0036] When multiple pipe boxes 200 are arranged in parallel, the working fluid side water inlets of the multiple pipe boxes 200 are connected to the working fluid water inlet pipeline 105 through multiple pipe box connecting pipes, and the working fluid side water outlets of the multiple pipe boxes 200 are connected to the working fluid water outlet pipeline 106 through multiple pipe box connecting pipes. Each pipe box connecting pipe is provided with a manual stop valve for disconnecting the pipe box connecting pipe, and a pipe box water inlet pressure gauge is provided on the pipe box connecting pipe at the working fluid side water outlet of the pipe box 200 near the working fluid water inlet pipeline 105. Other components and connection relationships are the same as those of the first, second, third or fourth specific embodiments.

[0037] Specific implementation method six: Combination Figures 1 to 3This embodiment is described. This embodiment also includes a working medium decoupling system 300. The working medium decoupling system 300 includes a plurality of decoupling bypasses 301 and a plurality of bypass decoupling manual stop valves 302. A decoupling bypass 301 is provided on the side of each pipe box 200. Both ends of the decoupling bypass 301 are respectively connected to the pipe box connecting pipes at the water inlet and outlet of the corresponding pipe box 200. A bypass decoupling manual stop valve 302 is provided on each decoupling bypass 301. With such a configuration, the entire device can be divided into several groups of pipe boxes according to actual conditions. Each group of pipe boxes is a self-contained system. A corrosion-resistant valve is separately configured on the steam-water side. A manual or electric shut-off damper is configured on the flue gas inlet and outlet. The steam-water side and the flue gas side can be decoupled separately, and maintenance can be achieved without stopping the machine. It is a new technical route for deep peak regulation of the unit and consumption of clean energy. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four or five.

[0038] Specific implementation method seven: Combination Figures 1 to 3 To explain this embodiment, the pipe box 200 of this embodiment includes a water inlet header 201, a water outlet header 202, an H-type heating surface tube group 203, an intermediate support tube sheet 204, a frame and a guard plate 205, and two end support tube sheets 206. The water inlet and outlet of the H-type heating surface tube group 203 are respectively connected to the water inlet header 201 and the water outlet header 202. The middle of the heat exchange tube in the H-type heating surface tube group 203 is inserted into the tube hole of the intermediate support tube sheet 204, and the two ends of the heat exchange tube in the H-type heating surface tube group 203 are respectively inserted into the tube holes of the two end support tube sheets 206. The intermediate support tube sheet 204 and the two end support tube sheets 206 are both installed on the frame and the guard plate 205. In this way, the above components in the pipe box 200 are all assembled in the workshop and shipped as a whole. If the overall size of the device exceeds the limit, the device can be designed into multiple independent pipe box structures, which can be assembled at the construction site, and only the pipe box and the supporting structure (steel) adjacent to the pipe box need to be sealed and welded, which greatly reduces the workload of on-site welding. Other components and connection relationships are the same as those of specific embodiments one, two, three, four, five or six.

[0039] Specific implementation method eight: Combination Figures 1 to 3 To explain this embodiment, the pipe box 200 of this embodiment also includes anti-wear dummy pipes 207. The windward side of the flue gas side heating surface is provided with 1 to 2 rows of anti-wear dummy pipes 207, and the anti-wear dummy pipes 207 are installed on the middle support tube sheet 204 and the two end support tube sheets 206. In this way, 1 to 2 rows of anti-wear dummy pipes are added to the windward side of the heating surface. Combined with the anti-wear characteristics of the heating surface itself, it can greatly eliminate the wear of the flue gas on the heating surface tube row, improve the reliability of the equipment, and reduce the inspection and maintenance costs. The other components and connection relationships are the same as those of the specific embodiments one, two, three, four, five, six or seven.

[0040] Specific implementation method nine: Combination Figures 1 to 3To explain this embodiment, the pipe box 200 of this embodiment further includes a smoke damper 208, a smoke damper 208 is provided at the smoke inlet on the smoke side, and the smoke damper 208 is installed on the frame and the guard plate 205. Other components and connection relationships are the same as those of the specific embodiments 1, 2, 3, 4, 5, 6, 7 or 8.

[0041] Specific implementation method ten: Combination Figures 1 to 3 To explain this embodiment, the H-type heating surface tube group 203 of this embodiment includes a double-coil serpentine tube panel and a plurality of fin groups. The double-coil serpentine tube panel is arranged in the flue, and a plurality of fin groups are arranged on adjacent serpentine tube sections, and the sheet surface of the fin is perpendicular to the longitudinal direction of the tube section. With such an arrangement, the material of the double H-type fin tube for enhanced heat exchange is specially customized "ND steel + external enamel process", which combines all the advantages of ND steel and external enamel process, has extremely strong resistance to sulfuric acid low-temperature dew point corrosion and chloride ion corrosion, and is particularly suitable for harsh working conditions such as low temperature and acidic gas. The other components and connection relationships are the same as those of the specific embodiments one, two, three, four, five, six, seven, eight or nine.

[0042] In this embodiment, the H-type heating surface tube group 203 adopts an enhanced heat exchange double H-type fin tube, whose fins are formed by symmetrically welding two steel sheets with arcs in the middle with a light tube. The front shape is quite similar to the letter "H", so it is called an H-type fin tube. The H-type fin tube adopts the flash resistance welding process. After welding, the weld fusion rate is high, the weld tensile strength is large, and it has good thermal conductivity. The specifications and spacing of the enhanced heat exchange fins are determined by combining enhanced heat transfer calculations, software simulation and experimental verification, and the expanded heating surface is used to the maximum extent.

[0043] How it works

[0044] Combination Figures 1 to 3 The working principle of an intelligent regulating integrated energy-saving and consumption-reducing device described in the present invention is described as follows: Take the case where there are multiple pipe boxes 200 and the multiple pipe boxes 200 are arranged in series and parallel as an example: before operation, the electric gate valve 103 for decoupling the middle of the working medium water supply pipeline is closed, the manual gate valve 102 for decoupling the working medium inlet side, the electric valve 107 for decoupling the working medium water inlet pipeline, the electric valve 108 for decoupling the working medium water outlet pipeline, the electric gate valve 109 for decoupling the working medium water supply pipeline, the manual gate valve 104 for decoupling the working medium outlet side, the manual stop valves for decoupling the pipe box connecting pipes on each pipe box connecting pipe, and the manual stop valves 302 for decoupling the bypass on each decoupling bypass 301 are all in a closed state;

[0045] The working fluid enters the working fluid side of each pipe box 200 from the working fluid inlet through the working fluid water supply pipe 101 and the working fluid water inlet pipe 105 in sequence. After heat exchange with the flue gas side, the working fluid flows out from the working fluid outlet through the working fluid water outlet pipe 106 and the working fluid water supply pipe 101.

[0046] The present invention can be decoupled separately on both the medium side and the flue gas side. If the heating surface is damaged, the damaged part can be decoupled, and maintenance and replacement can be achieved without stopping the machine, or partial operation can be selected at will in conjunction with the peak load regulation of the unit; this can be achieved by controlling the opening state of the manual stop valve for decoupling the pipe-box connecting pipe on the pipe-box connecting pipe and the manual stop valve 302 for decoupling on the bypass 301 for decoupling.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent adjustable energy-saving and consumption-reducing integrated device, characterized in that: It comprises a working fluid water supply system (100) and a pipe box (200). The working fluid water supply system (100) comprises a working fluid water supply pipeline (101), a manual gate valve (102) for disconnecting the working fluid inlet side, an electric gate valve (103) for disconnecting the working fluid water supply pipeline in the middle, a manual gate valve (104) for disconnecting the working fluid outlet side, a working fluid water inlet pipeline (105), a working fluid water outlet pipeline (106), an electric valve (107) for disconnecting the working fluid water inlet pipeline, an electric valve (108) for disconnecting the working fluid water outlet pipeline, a pipe box water inlet pipeline (109), a pipe box connecting pipeline (110) and a pipe box water outlet pipeline (111). The working fluid water supply pipeline (101) has a working fluid inlet and a working fluid outlet at both ends, respectively. The working fluid water supply pipeline (101) has a working fluid inlet and a working fluid outlet at both ends, and a working fluid water supply pipeline (101) has a working fluid inlet and a working fluid outlet at both ends. A manual gate valve (102) for disconnecting the working medium inlet side, an electric gate valve (103) for disconnecting the working medium water supply pipeline in the middle, and a manual gate valve (104) for disconnecting the working medium outlet side are sequentially provided on the outlet side; one end of the working medium water inlet pipeline (105) and the working medium water outlet pipeline (106) are respectively connected to the pipe sections on both sides of the electric gate valve (103) for disconnecting the working medium water supply pipeline in the middle; the other ends of the working medium water inlet pipeline (105) and the working medium water outlet pipeline (106) are respectively connected to the water inlet and outlet of the medium side of the pipe box (200); and an electric valve (107) for disconnecting the working medium water inlet pipeline and an electric valve (108) for disconnecting the working medium water outlet pipeline are respectively provided on the water inlet side of the working medium water inlet pipeline (105) and the working medium water outlet pipeline (106).

2. According to claim 1, the intelligent adjustable energy-saving and consumption-reducing integrated device is characterized in that: The working fluid water supply system (100) further comprises an electric gate valve (109) for disconnecting the working fluid water supply pipeline, a thermocouple (110) and a working fluid water supply pipeline pressure gauge (111); the working fluid water supply pipeline (101) is provided with an electric gate valve (109) for disconnecting the working fluid water supply pipeline, a thermocouple (110) and a working fluid water supply pipeline pressure gauge (111) on a pipe section close to the working fluid outlet of the working fluid water supply pipeline (101).

3. An intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 1 or 2, characterized in that: The number of the pipe boxes (200) is a positive integer not less than 1.

4. The intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 3, characterized in that: The number of the pipe box (200) is one; the working fluid side water inlet of the pipe box (200) is connected to the working fluid water inlet pipe (105) via a pipe box connecting pipe; the working fluid side water outlet of the pipe box (200) is connected to the working fluid water outlet pipe (106) via a pipe box connecting pipe; and a pipe box water inlet pressure gauge is provided on the pipe box connecting pipe at the working fluid side water inlet of the pipe box (200).

5. The intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 3 is characterized in that: There are multiple pipe boxes (200), and the multiple pipe boxes (200) are arranged between the working fluid water inlet pipe (105) and the working fluid water outlet pipe (106) in a manner of series connection, parallel connection, or a combination of series and parallel connection; When a plurality of pipe boxes (200) are arranged in series, the plurality of pipe boxes (200) are connected end to end from the working fluid water inlet side to the working fluid water outlet side via a plurality of pipe box connecting pipes, the working fluid side water inlet of the pipe box (200) close to the working fluid water inlet side is connected to the working fluid water inlet pipe (105) via the pipe box connecting pipe, and the working fluid side water outlet of the pipe box (200) close to the working fluid water outlet side is connected to the working fluid water outlet pipe (106) via the pipe box connecting pipe, each pipe box connecting pipe is provided with a manual stop valve for disconnecting the pipe box connecting pipe, and the pipe box connecting pipe at the working fluid side water outlet of the pipe box (200) close to the working fluid water inlet pipe (105) is provided with a pipe box water inlet pressure gauge; When a plurality of pipe boxes (200) are arranged in parallel, the working fluid side water inlets of the plurality of pipe boxes (200) are respectively connected to the working fluid water inlet pipeline (105) via a plurality of pipe box connecting pipelines, and the working fluid side water outlets of the plurality of pipe boxes (200) are respectively connected to the working fluid water outlet pipeline (106) via a plurality of pipe box connecting pipelines. A manual stop valve for disconnecting the pipe box connecting pipeline is provided on each pipe box connecting pipeline, and a pipe box water inlet pressure gauge is provided on the pipe box connecting pipeline at the working fluid side water outlet of the pipe box (200) close to the working fluid water inlet pipeline (105).

6. An intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 4 or 5, characterized in that: It also includes a working medium decoupling system (300), the working medium decoupling system (300) including a plurality of decoupling bypasses (301) and a plurality of bypass decoupling manual stop valves (302), each pipe box (200) is provided with a decoupling bypass (301) on its side, both ends of the decoupling bypass (301) are respectively connected to the pipe box connecting pipes at the water inlet and outlet of the corresponding pipe box (200), and each decoupling bypass (301) is provided with a bypass decoupling manual stop valve (302).

7. The intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 6, characterized in that: The pipe box (200) comprises a water inlet header (201), a water outlet header (202), an H-type heating surface pipe group (203), an intermediate support pipe sheet (204), a frame and a protective plate (205), and two end support pipe sheets (206); the water inlet and the water outlet of the H-type heating surface pipe group (203) are respectively connected to the water inlet header (201) and the water outlet header (202); the middle of the heat exchange pipe in the H-type heating surface pipe group (203) is inserted into the pipe hole of the intermediate support pipe sheet (204); the two ends of the heat exchange pipe in the H-type heating surface pipe group (203) are respectively inserted into the pipe holes of the two end support pipe sheets (206); the intermediate support pipe sheet (204) and the two end support pipe sheets (206) are both installed on the frame and the protective plate (205).

8. The intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 7, characterized in that: The pipe box (200) also includes anti-wear dummy pipes (207). One to two rows of anti-wear dummy pipes (207) are provided on the windward side of the flue gas side heating surface. The anti-wear dummy pipes (207) are installed on the middle supporting tube sheet (204) and the two end supporting tube sheets (206).

9. The intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 8, characterized in that: The pipe box (200) further comprises a smoke baffle (208). The smoke inlet on the smoke side is provided with a smoke baffle (208), and the smoke baffle (208) is installed on the frame and the guard plate (205).

10. The intelligent adjustable energy-saving and consumption-reducing integrated device according to claim 9, characterized in that: The H-type heating surface tube group (203) comprises a double-coil serpentine tube panel and a plurality of fin groups. The double-coil serpentine tube panel is arranged in the flue. A plurality of fin groups are arranged on adjacent serpentine tube sections. The fin surfaces are perpendicular to the longitudinal direction of the tube section.