WO2023212978A1 - Waste heat recovery device for boiler equipment - Google Patents

Waste heat recovery device for boiler equipment Download PDF

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Publication number
WO2023212978A1
WO2023212978A1 PCT/CN2022/092925 CN2022092925W WO2023212978A1 WO 2023212978 A1 WO2023212978 A1 WO 2023212978A1 CN 2022092925 W CN2022092925 W CN 2022092925W WO 2023212978 A1 WO2023212978 A1 WO 2023212978A1
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WO
WIPO (PCT)
Prior art keywords
heat
pipe
heat exchange
exchange cylinder
recovery device
Prior art date
Application number
PCT/CN2022/092925
Other languages
French (fr)
Chinese (zh)
Inventor
林果
Original Assignee
天津大学滨海工业研究院有限公司
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Application filed by 天津大学滨海工业研究院有限公司 filed Critical 天津大学滨海工业研究院有限公司
Publication of WO2023212978A1 publication Critical patent/WO2023212978A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely

Definitions

  • the utility model belongs to the field of boiler waste heat recovery, and in particular relates to a waste heat recovery device for boiler equipment.
  • Flue gas waste heat recovery mainly converts the heat carried by the flue gas into usable heat through a certain heat exchange method.
  • the heat pipe waste heat recovery device is a special equipment for coal, oil, and gas-fired boilers. It is installed at the boiler smoke outlet to recover the flue gas.
  • the waste heat heats domestic water or boiler water replenishment; when the recovery device is working, the flue gas flows through the heat pipe waste heat return flue and flushes the lower end of the heat pipe. After absorbing heat, the heat pipe guides the heat to the upper end, and the upper end of the heat pipe releases heat to heat the water.
  • there is generally no dust removal or descaling device inside the existing boiler flue gas waste heat recovery device which is very troublesome to clean.
  • the present utility model aims to overcome the defects in the prior art and proposes a waste heat recovery device for boiler equipment.
  • a waste heat recovery device for boiler equipment including a heat exchange cylinder, filtering mechanisms provided at the left and right ends of the heat exchange cylinder, and a heat exchange mechanism provided in the heat exchange cylinder;
  • the filtering mechanism includes a ventilation pipe provided on the heat exchange cylinder , and an interception net provided in the ventilator.
  • a foreign matter collection box is provided on the ventilator corresponding to the position below the interception net. The foreign matter collection box is connected with the ventilator;
  • the heat exchange mechanism includes several spaced apart devices in the heat exchange cylinder. Heat-conducting tubes and heat-conducting components provided on the heat-conducting tubes.
  • each heat-conducting tube extends out of the heat-exchange tube; a water storage component is provided above the heat-exchange tube corresponding to the heat-conducting tube, and a water storage component is provided below the heat-conducting tube corresponding to the heat-conducting tube. Equipped with water supply components.
  • a removable sealing door is provided on the heat exchange cylinder at a position corresponding to the heat transfer pipe.
  • the heat conduction component includes heat conduction fins provided on the heat conduction pipe. Multiple heat conduction fins are provided at intervals along the length of the heat conduction pipe. The heat dissipation fins on two adjacent heat conduction pipes are V-shaped or inverted V. type settings.
  • the water storage component includes a water storage tank provided on the heat exchange cylinder and a water outlet pipe provided on the water storage tank; the heat conduction pipe is connected to the water storage tank, and a flow limiting assembly is provided at one end of the heat conduction pipe extending into the water storage tank.
  • the flow limiting assembly includes a plugging member slidably provided on the heat pipe.
  • One end of the plug toward the heat pipe is provided with a tapered end that matches the mouth of the heat pipe, and the other side is provided with a dome-shaped conductor. Flow hood.
  • At least two guide columns are evenly arranged around the heat transfer pipe, and the blocking member is provided with a guide sleeve that slides with the guide column; one end of the guide column passing through the guide sleeve is provided with a limiting block, and the other end is provided with a limit block.
  • One end is arranged on the heat pipe, and an elastic element is provided on the guide column at a position corresponding to the position between the limit block and the guide sleeve. One end of the elastic element resists the limit block and the other end resists the guide sleeve.
  • the water inlet assembly includes a water inlet pipe provided on the heat exchange cylinder and a control valve provided on the water inlet pipe.
  • the water inlet pipe is connected to the heat transfer pipe through an L-shaped flange pipe.
  • the heat exchange cylinder is provided with a dredge rod for dredging the heat conduction pipe.
  • One end of the dredge rod is provided with a cutting piece that matches the heat conduction pipe, and the other end is provided with a handle piece.
  • the water storage tank is provided with a fixed dredge rod for fixing the heat conduction pipe. Rod clamp.
  • the cutting member is a cross-shaped structural member, and each end of the cutting member is provided with an arc-shaped cutting piece that slides with the heat conduction pipe.
  • this utility model has the following advantages:
  • the utility model has a simple structure, high waste heat recovery and utilization efficiency, and is easy to assemble and maintain. It is especially convenient for operators to clean dust and scale in the device. It is very convenient to clean, greatly reducing the difficulty of maintenance and use of this waste heat recovery device, and improving This improves the reliability and service life of this device during operation; by arranging heat-conducting fins on the heat-conducting pipe, the contact area between the heat-conducting pipe and the exhaust gas in the heat exchange cylinder is larger, and the heat-conducting effect is better.
  • the heat pipe By extending the heat-conducting pipe into In the water storage tank, the heat pipe can not only heat the liquid flowing through the heat pipe, but also heat the liquid in the water storage tank, further improving the heat conduction effect of the heat pipe; the flow limiting component on the heat pipe can not only reduce the amount of liquid in the heat pipe The flow rate can also prevent a large amount of liquid in the water storage tank from flowing back into the heat pipe, which is conducive to ensuring the overall heating effect of this waste heat recovery device.
  • Figure 1 is a schematic structural diagram of the utility model
  • Figure 2 is a partial enlarged view of point A in Figure 1;
  • Figure 3 is a schematic structural diagram of the interior of the heat exchange cylinder in the embodiment of the present utility model
  • Figure 4 is a schematic structural diagram of the current limiting component in the embodiment of the present invention.
  • 1-heat exchange cylinder 2-sealing door; 3-ventilation pipe; 4-foreign body collection box; 5-water inlet pipe; 6-water storage tank; 7-water outlet pipe; 8-interception net; 9-control valve; 10-method Blue tube; 11-heat pipe; 12-flow limiting component; 13-heat-conducting fin; 14-blocking piece; 15-guide cover; 16-guide sleeve; 17-guide column; 18-elastic element; 19-limit Bit block; 20-dredge rod; 21-clamp; 22-cutting piece; 23-cutting piece; 24-handle piece.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a removable connection.
  • Detachable connection, or integral connection can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • connection should be understood through specific situations.
  • a waste heat recovery device for boiler equipment includes a rectangular heat exchange cylinder 1, filter mechanisms provided at the left and right ends of the heat exchange cylinder 1, and a heat exchange mechanism provided in the heat exchange cylinder 1;
  • the filtering mechanism includes a breather tube 3 provided on the heat exchange cylinder 1 and an interception net 8 provided in the breather tube 3.
  • a foreign matter collection box 4 is provided on the breather tube 3 at a position corresponding to the position below the interception net 8.
  • the foreign matter collection box 4 is provided.
  • the box 4 is connected to the ventilation pipe 3;
  • the heat exchange mechanism includes a plurality of heat conduction tubes 11 arranged at intervals in the heat exchange cylinder 1, and heat conduction components provided on the heat conduction tubes 11. Both ends of each of the heat transfer tubes 11 extend out.
  • Heat exchange cylinder 1; a water storage component is provided above the heat exchange cylinder 1 at a position corresponding to the heat conduction pipe 11, and a water supply component is provided below at a position corresponding to the heat conduction pipe 11.
  • the vent pipe 3 is connected to the heat exchange cylinder 1.
  • the vent pipe 3 can be welded and fixed on the heat exchange cylinder 1, or it can be connected to the heat exchange cylinder 1 through a flange.
  • the interceptor net 8 can be welded and fixed on the vent pipe 3. This invention Those skilled in the art can also use other methods to install the fixed interception net 8 and the ventilation pipe 3; the interception net 8 can intercept large pieces of foreign matter to avoid damage to the heat-conducting fins 13 or the heat-conducting tube 11 due to the impact of foreign matter, which improves the The safety and reliability of the waste heat recovery device during use.
  • the foreign matter collection box 4 can be installed and fixed on the ventilation pipe 3 by screws.
  • a drop opening can be provided on the ventilation pipe 3 at a position corresponding to the foreign body collection box 4.
  • a mechanical sealing structure can be provided between the foreign body collection box 4 and the ventilation pipe 3.
  • Those skilled in the art can also choose the installation and sealing method of the foreign matter collection box 4 as needed, as long as a stable connection between the foreign matter collection box 4 and the ventilation pipe 3 can be achieved, and the foreign matter collection box 4 can be well collected and intercepted
  • the foreign matter intercepted by the net 8 prevents the foreign matter from clogging the interception net 8 and ensures the ventilation performance of this waste heat recovery device.
  • the heat exchange cylinder 1 is provided with a removable sealing door 2 at a position corresponding to the heat transfer pipe 11; specifically, the sealing door 2 can be the door body used in existing waste heat boilers, and the sealing door 2 can be installed through a rotating shaft or hinge.
  • the heat exchange cylinder 1 can be provided with a locking device, such as a hasp lock, for fixing the sealing door 2.
  • a locking device such as a hasp lock
  • Those skilled in the art can also choose other structures of the sealing door 2 and the installation of the sealing door 2.
  • the fixing method is as long as the sealing door 2 can be opened and closed on the heat exchange cylinder 1 to facilitate the operator to clean or maintain the heat pipe 11 and the heat conduction fin 13. By setting the sealing door 2, the operator can clean it very conveniently.
  • the dust in the heat exchange cylinder 1 ensures the heat conduction efficiency of the heat exchange tube and the heat conduction fins 13, which is beneficial to improving the heat recovery efficiency of this waste heat recovery device.
  • the heat-conducting assembly includes heat-conducting fins 13 provided on the heat-conducting tube 11.
  • a plurality of the heat-conducting fins 13 are arranged at intervals along the length direction of the heat-conducting tube 11.
  • the heat-dissipating fins on two adjacent heat-conducting tubes 11 are V-shaped or Inverted V-shaped arrangement; specifically, the heat transfer tube 11 can be welded and fixed on the heat exchange cylinder 1, and those skilled in the art can also install and fix the heat transfer tube 11 in other ways, and each heat transfer tube 11 is arranged vertically.
  • the heat-conducting fins 13 can be integrally formed with the heat-conducting pipe 11 or can be welded and fixed. Those skilled in the art can also install and fix the heat-conducting fins 13 in other ways. By densely covering the heat-conducting fins 13 on the heat-conducting pipe 11, the heat-conducting fins can be fixed. 13 can better conduct the heat in the exhaust gas to the heat pipe 11.
  • the heat on the heat pipe 11 can heat the liquid in the heat pipe 11 and the water storage tank 6 to realize the recovery and utilization of the waste heat of the exhaust gas; it is V-shaped or inverted V.
  • the heat-conducting fins 13 arranged in a shape can form a wavy gas flow gap.
  • the wavy gas flow gap can slow down the flow speed of the exhaust gas without blocking the flow of the exhaust gas.
  • the high-temperature exhaust gas can better heat the heat-conducting fins 13 and the heat-conducting tubes 11, greatly improving the heat collection efficiency of the heat-conducting fins 13 and the heat-conducting tubes 11, which is beneficial to improving the overall heating efficiency of this waste heat recovery device.
  • the water storage component includes a water storage tank 6 provided on the heat exchange cylinder 1 and a water outlet pipe 7 provided on the water storage tank 6; the heat conduction pipe 11 is connected with the water storage tank 6, and one end of the heat conduction pipe 11 extends into the water storage tank 6.
  • Flow-limiting assembly 12 specifically, the water storage tank 6 can be welded and fixed on the heat exchange cylinder 1.
  • Those skilled in the art can also install and fix the water storage tank 6 in other ways, as long as the water storage tank 6 and the heat exchange cylinder 1 can be connected.
  • a stable connection is enough; by extending the heat pipe 11 into the water storage tank 6, the heat pipe 11 can not only heat the liquid flowing through the heat pipe 11, but also directly heat the liquid in the water storage tank 6, further improving the efficiency of the heat pipe 11 thermal conductivity effect.
  • the flow limiting assembly 12 includes a blocking member 14 slidably provided on the heat pipe 11.
  • One end of the blocking member 14 facing the heat pipe 11 is provided with a tapered end that matches the mouth of the heat pipe 11, and the other side is provided with a dome.
  • the heat-conducting pipe 11 is evenly provided with at least two guide posts 17 around it, and the blocking member 14 is provided with a guide sleeve 16 that slides with the guide posts 17; the guide posts 17 pass through One end of the guide sleeve 16 is provided with a limiting block 19, and the other end is provided on the heat pipe 11.
  • the guide column 17 is provided with an elastic element 18 at a position corresponding to the position between the limiting block 19 and the guide sleeve 16. The elastic element 18 One end resists the limit block 19, and the other end resists the guide sleeve 16.
  • the blocking member 14 is a T-shaped structural member, and the flow guide 15 can be integrally formed with the blocking member 14 or welded and fixed.
  • the heat pipe 11 can also be provided with a chamfer that matches the cone end;
  • the elastic element 18 can be a compression spring, and the guide sleeve 16 can be welded and fixed on the blocking member 14 or the deflector 15, or can be
  • the blocking member 14 or the flow guide cover 15 is formed in one piece, and a through hole for installing the guide sleeve 16 can be provided on the blocking member 14 or the flow guide cover 15;
  • the guide column 17 can be welded and fixed on the heat pipe 11, and the limit block 19 It can be welded or installed and fixed on the guide column 17 through screws.
  • Those skilled in the art can also install the above components in other ways, which will not be described again here.
  • the water inlet pipe 5 can be installed and fixed on the heat exchange cylinder 1 through a pipe clamp. Those skilled in the art can also use other methods to install and fix the water inlet pipe 5 on the heat exchange cylinder 1.
  • the water inlet pipe 5 can also be connected with a water pump or booster.
  • the tapered end of the blocking member 14 can be inserted downward into the heat pipe 11 under the reset elastic force of the elastic element 18 to achieve the blocking of the heat pipe 11 ;
  • the blocking member 14 can play a very good blocking role in the heat pipe 11, preventing a large amount of hot water in the water storage tank 6 from flowing back, thereby preventing the cold and hot water in the waste heat recovery device from neutralizing, which is beneficial to ensuring For the heating effect of this device, those skilled in the art can select the elastic element 18 with appropriate specifications or elasticity according to needs. As long as the elastic element 18 can drive the blocking member 14 to properly heat the heat pipe 11 without affecting the flow of water, Just block it;
  • the operator can control the flow rate of the water inlet pipe 5 and the flow rate of the heat transfer pipe 11 by controlling the water supply pressure, which is very convenient to operate; when the heat transfer pipe 11 supplies water to the water storage tank 6, the blocking member 14 also It can play a certain blocking role in the water flow, reduce the flow rate of water entering the water storage tank 6 through the heat transfer pipe 11, and increase the heating time and heating effect of the water flow in the heat transfer pipe 11; because the blocking member 14 and the heat transfer pipe 11 are not completely sealed Together, a small amount of leakage from the heat transfer pipe 11 will not affect the overall heating effect of the device, and the leaked water from the heat transfer pipe 11 can also be used to wash away the scale debris during the cleaning process of the heat transfer pipe 11, making it convenient for the operator to subsequently clean the heat transfer pipe 11. Limescale.
  • the water outlet pipe 7 is arranged on the water storage tank 6 at a position corresponding to the top of the heat transfer pipe 11; when the water in the heat transfer pipe 11 is replenished into the water storage tank 6, the water flowing out through the heat transfer pipe 11 can flow along the guide cover 15 Deflection occurs, and cold water can flow to the bottom of the water storage tank 6. Since hot water and cold water will stratify, the water temperature in the upper layer of the water storage tank 6 is higher. Therefore, by guiding the cold water in the heat pipe 11 to the lower layer of the water storage tank 6, it can be avoided. Mixing hot and cold water ensures the water temperature in the upper layer of the water storage tank 6, thereby ensuring that all the heated hot water discharged through the water outlet pipe 7 is heated, thereby improving the heating effect of this waste heat recovery device.
  • the water inlet assembly includes a water inlet pipe 5 provided on the heat exchange cylinder 1 and a control valve 9 provided on the water inlet pipe 5.
  • the water inlet pipe 5 is connected to the heat transfer pipe 11 through an L-shaped flange pipe 10; specifically, Both the control valve 9 and the flange pipe 10 can be connected to the water inlet pipe 5 through flanges.
  • the control valve 9 can use existing electronically controlled valves or manual valves, such as butterfly valves, etc.
  • valves and installation methods of the valves can also use other forms of valves and installation methods of the valves, as long as the connection of the water inlet pipe 5 can be realized
  • the operator can easily disassemble the flange pipe 10 by closing the control valve 9, which facilitates subsequent cleaning or maintenance of the heat transfer pipe 11.
  • the heat exchange cylinder 1 is provided with a dredge rod 20 for dredging the heat pipe 11.
  • One end of the dredge rod 20 is provided with a cutting piece 22 that matches the heat pipe 11, and the other end is provided with a handle 24.
  • the water storage tank 6 is There is a clamp 21 for fixing the dredge rod 20; specifically, the clamp 21 can be installed and fixed on the heat exchange cylinder 1 through screws. Those skilled in the art can also install and fix the clamp 21 in other ways.
  • the clamp 21 can be set Two or more can be provided.
  • clamps 21 can also select appropriate clamps 21 as needed, as long as those skilled in the art can use the clamps 21 to fix the dredge rod 20; the handle 24 can be integrated with the dredge rod 20 It can be formed or welded and fixed, and those skilled in the art can choose at their own discretion.
  • the cutting piece 22 can be integrally formed with the dredge rod 20, or can be welded and fixed, and those skilled in the art can choose at their own discretion.
  • the cutting piece 22 is a cross-shaped structural member, and each end of the cutting piece 22 is provided with an arc-shaped cutting piece 23 that slides with the heat pipe 11; specifically, the cutting piece 23 can be integrally formed with the cutting piece 22, or can be For welding and fixation, those skilled in the art can choose by themselves. Both the cutting piece 22 and the cutting blade 23 can be provided with a bevel or a cone for scraping the ditch.
  • the cross-shaped cutting piece 22 can not only crush and remove large pieces of scale.
  • the broken ditch debris can fall out of the heat pipe 11 through the cutting piece 22, which is very convenient to operate, and the cutting piece 23 can play a very good role in scraping the ditch on the inner wall of the heat pipe 11 to avoid Scale remains on the inner wall of the heat pipe 11, thereby improving the thermal conductivity efficiency and effect of the heat pipe 11.
  • the operator can first close the control valve 9, then remove the flange pipe 10, insert the cutting piece 22 on the clearing rod 20 into the heat pipe 11, and repeatedly pull the clearing rod 20 , use the cutting piece 22 and the cutting disk 23 on the dredge rod 20 to clean the scale in the heat transfer pipe 11.
  • the water leaking through the heat transfer pipe 11 can flush the debris in the heat transfer pipe 11 out of the heat transfer pipe 11.
  • the operator can also use the dredge rod 20 to push up the blocking member 14 to connect the heat transfer pipe 11 with the water storage tank 6, and use the water in the water storage tank 6 to quickly flush the heat transfer pipe 11, and then
  • the purpose of cleaning the heat pipe 11 is quickly achieved, and the operation is very convenient, which greatly improves the cleaning efficiency of the heat pipe 11.
  • there is no need to drain the water in the water storage tank 6 during the cleaning process which greatly reduces the difficulty of cleaning this device.
  • the utility model has a simple structure, high waste heat recovery and utilization efficiency, and is easy to assemble and maintain. It is especially convenient for operators to clean dust and scale in the device. It is very convenient to clean, greatly reducing the difficulty of maintenance and use of this waste heat recovery device, and improving This improves the reliability and service life of this device during operation; by arranging heat-conducting fins on the heat-conducting pipe, the contact area between the heat-conducting pipe and the exhaust gas in the heat exchange cylinder is larger, and the heat-conducting effect is better.
  • the heat pipe By extending the heat-conducting pipe into In the water storage tank, the heat pipe can not only heat the liquid flowing through the heat pipe, but also heat the liquid in the water storage tank, further improving the heat conduction effect of the heat pipe; the flow limiting component on the heat pipe can not only reduce the amount of liquid in the heat pipe The flow rate can also prevent a large amount of liquid in the water storage tank from flowing back into the heat pipe, which is conducive to ensuring the overall heating effect of this waste heat recovery device.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A waste heat recovery device for boiler equipment, said device comprising a heat exchange cylinder (1), filtering mechanisms correspondingly arranged at the left end and the right end of the heat exchange cylinder (1), and a heat exchange mechanism disposed in the heat exchange cylinder (1). The filtering mechanisms each comprise a ventilation pipe (3) disposed on the heat exchange cylinder (1) and an interception net (8) disposed in the ventilation pipe (3), a foreign matter collection box (4) is disposed on the ventilation pipe (3) at a position corresponding to the lower portion of the interception net (8), and the foreign matter collection box (4) communicates with the ventilation pipe (3). The heat exchange mechanism comprises a plurality of heat conduction pipes (11) arranged at intervals in the heat exchange cylinder (1) and heat conduction assemblies disposed on the heat conduction pipes (11), and two ends of each heat conduction pipe (11) extend out of the heat exchange cylinder (1). The described device is simple in structure, has high waste heat recycling efficiency, and is easy to assemble and maintain. In particular, it is convenient for operators to clean dust and incrustation in the device, and the device is very convenient to clean, which greatly reduces the maintenance and use difficulty of the waste heat recovery device, and improves the reliability and service life of the device during operation.

Description

一种锅炉设备用余热回收装置A waste heat recovery device for boiler equipment 技术领域Technical field
本实用新型属于锅炉余热回收领域，尤其是涉及一种锅炉设备用余热回收装置。The utility model belongs to the field of boiler waste heat recovery, and in particular relates to a waste heat recovery device for boiler equipment.
背景技术Background technique
烟气余热回收主要是通过某种换热方式将烟气携带的热量转换成可以利用的热量，而热管余热回收器是燃煤、油、气锅炉专用设备，安装在锅炉烟口，回收烟气余热加热生活用水或锅炉补水；回收装置工作时，烟气流经热管余热回器烟道冲刷热管下端，热管吸热后将热量导至上端，热管上端放热将水加热。但现有的锅炉烟气余热回收器的内部一般没有除尘或除垢装置，清理起来十分麻烦，烟气通过后遗留的烟气灰尘会附着在回收器内壁上，水垢则会附着在导热器件上，长时间不清理会导致难以清理，并且会影响加热效率；同时现有的余热回收方法的加热效果单一，由于清理维护不易，长时间使用后会导致加热效果变差，影响了锅炉余热的回收效率和回收效果。Flue gas waste heat recovery mainly converts the heat carried by the flue gas into usable heat through a certain heat exchange method. The heat pipe waste heat recovery device is a special equipment for coal, oil, and gas-fired boilers. It is installed at the boiler smoke outlet to recover the flue gas. The waste heat heats domestic water or boiler water replenishment; when the recovery device is working, the flue gas flows through the heat pipe waste heat return flue and flushes the lower end of the heat pipe. After absorbing heat, the heat pipe guides the heat to the upper end, and the upper end of the heat pipe releases heat to heat the water. However, there is generally no dust removal or descaling device inside the existing boiler flue gas waste heat recovery device, which is very troublesome to clean. The flue gas dust left after the flue gas passes will adhere to the inner wall of the recovery device, and the scale will adhere to the heat-conducting devices. If it is not cleaned for a long time, it will be difficult to clean and affect the heating efficiency; at the same time, the existing waste heat recovery method has a single heating effect. Since cleaning and maintenance are difficult, the heating effect will become worse after long-term use, which affects the recovery of boiler waste heat. efficiency and recycling effects.
实用新型内容Utility model content
有鉴于此，本实用新型旨在克服现有技术中的缺陷，提出一种锅炉设备用余热回收装置。In view of this, the present utility model aims to overcome the defects in the prior art and proposes a waste heat recovery device for boiler equipment.
为达到上述目的，本实用新型的技术方案是这样实现的：In order to achieve the above purpose, the technical solution of the present invention is achieved as follows:
一种锅炉设备用余热回收装置，包括换热筒、换热筒左右两端对应设置的过滤机构、以及换热筒内设置的换热机构；所述过滤机构包 括换热筒上设置的通气管、以及通气管内设置的拦截网，所述通气管上对应拦截网下方的位置设有异物收集盒，该异物收集盒与通气管连通；所述换热机构包括换热筒内间隔设置的数个导热管、以及导热管上设置的导热组件，各所述导热管的两端均伸出换热筒；所述换热筒上方对应导热管的位置设有储水组件、下方对应导热管的位置设有供水组件。A waste heat recovery device for boiler equipment, including a heat exchange cylinder, filtering mechanisms provided at the left and right ends of the heat exchange cylinder, and a heat exchange mechanism provided in the heat exchange cylinder; the filtering mechanism includes a ventilation pipe provided on the heat exchange cylinder , and an interception net provided in the ventilator. A foreign matter collection box is provided on the ventilator corresponding to the position below the interception net. The foreign matter collection box is connected with the ventilator; the heat exchange mechanism includes several spaced apart devices in the heat exchange cylinder. Heat-conducting tubes and heat-conducting components provided on the heat-conducting tubes. Both ends of each heat-conducting tube extend out of the heat-exchange tube; a water storage component is provided above the heat-exchange tube corresponding to the heat-conducting tube, and a water storage component is provided below the heat-conducting tube corresponding to the heat-conducting tube. Equipped with water supply components.
进一步的，所述换热筒上对应导热管的位置设有可拆卸的密封门。Furthermore, a removable sealing door is provided on the heat exchange cylinder at a position corresponding to the heat transfer pipe.
进一步的，所述导热组件包括导热管上设置的导热翅片，所述导热翅片沿导热管长度方向间隔设置有多个，相邻两个导热管上的散热翅片呈V型或倒V型设置。Further, the heat conduction component includes heat conduction fins provided on the heat conduction pipe. Multiple heat conduction fins are provided at intervals along the length of the heat conduction pipe. The heat dissipation fins on two adjacent heat conduction pipes are V-shaped or inverted V. type settings.
进一步的，所述储水组件包括换热筒上设置的储水箱、以及储水箱上设置的出水管；所述导热管与储水箱连通，导热管伸入储水箱的一端设有限流组件。Further, the water storage component includes a water storage tank provided on the heat exchange cylinder and a water outlet pipe provided on the water storage tank; the heat conduction pipe is connected to the water storage tank, and a flow limiting assembly is provided at one end of the heat conduction pipe extending into the water storage tank.
进一步的，所述限流组件包括导热管上滑动设置的封堵件，该封堵件朝向导热管的一端设有与导热管管口配合的锥端部，另一侧设有穹顶形的导流罩。Further, the flow limiting assembly includes a plugging member slidably provided on the heat pipe. One end of the plug toward the heat pipe is provided with a tapered end that matches the mouth of the heat pipe, and the other side is provided with a dome-shaped conductor. Flow hood.
进一步的，所述导热管四周均匀设置有至少两个导向柱，所述封堵件上设有与导向柱滑动配合的导向套；所述导向柱穿过导向套的一端设有限位块，另一端设置在导热管上，所述导向柱上对应限位块与导向套之间的位置设有弹性元件，所述弹性元件一端顶住限位块，另一端顶住导向套。Further, at least two guide columns are evenly arranged around the heat transfer pipe, and the blocking member is provided with a guide sleeve that slides with the guide column; one end of the guide column passing through the guide sleeve is provided with a limiting block, and the other end is provided with a limit block. One end is arranged on the heat pipe, and an elastic element is provided on the guide column at a position corresponding to the position between the limit block and the guide sleeve. One end of the elastic element resists the limit block and the other end resists the guide sleeve.
进一步的，所述进水组件包括换热筒上设置的进水管、以及进水管上设置的控制阀门，所述进水管通过L型法兰管与导热管连通。Further, the water inlet assembly includes a water inlet pipe provided on the heat exchange cylinder and a control valve provided on the water inlet pipe. The water inlet pipe is connected to the heat transfer pipe through an L-shaped flange pipe.
进一步的，所述换热筒上设有用于疏通导热管的疏通杆，该疏通杆一端设有与导热管配合的切割件，另一端设有把手件，所述储水箱上设有用于固定疏通杆的卡箍。Furthermore, the heat exchange cylinder is provided with a dredge rod for dredging the heat conduction pipe. One end of the dredge rod is provided with a cutting piece that matches the heat conduction pipe, and the other end is provided with a handle piece. The water storage tank is provided with a fixed dredge rod for fixing the heat conduction pipe. Rod clamp.
进一步的，所述切割件为十字型结构件，切割件的各个端部均设有与导热管滑动配合的弧形切割片。Further, the cutting member is a cross-shaped structural member, and each end of the cutting member is provided with an arc-shaped cutting piece that slides with the heat conduction pipe.
相对于现有技术，本实用新型具有以下优势：Compared with the existing technology, this utility model has the following advantages:
本实用新型结构简单，余热回收利用效率高，易于装配和维护，尤其是便于操作人员清理装置内的灰尘和水垢，清理起来十分方便，大大降低了这种余热回收装置的维护和使用难度，提高了这种装置在运行过程中的可靠性和使用寿命；通过在导热管上设置导热翅片，导热管与换热筒内废气的接触面积更大，导热效果更好，通过将导热管伸入储水箱，导热管不仅可以对流过导热管的液体进行加热，也可以对储水箱内的液体进行加热，进一步提高了导热管的导热效果；导热管上的限流组件不仅可以降低导热管内的液体流速，而且还可以避免储水箱内的液体大量回流导热管，有利于确保这种余热回收装置整体的加热效果。The utility model has a simple structure, high waste heat recovery and utilization efficiency, and is easy to assemble and maintain. It is especially convenient for operators to clean dust and scale in the device. It is very convenient to clean, greatly reducing the difficulty of maintenance and use of this waste heat recovery device, and improving This improves the reliability and service life of this device during operation; by arranging heat-conducting fins on the heat-conducting pipe, the contact area between the heat-conducting pipe and the exhaust gas in the heat exchange cylinder is larger, and the heat-conducting effect is better. By extending the heat-conducting pipe into In the water storage tank, the heat pipe can not only heat the liquid flowing through the heat pipe, but also heat the liquid in the water storage tank, further improving the heat conduction effect of the heat pipe; the flow limiting component on the heat pipe can not only reduce the amount of liquid in the heat pipe The flow rate can also prevent a large amount of liquid in the water storage tank from flowing back into the heat pipe, which is conducive to ensuring the overall heating effect of this waste heat recovery device.
附图说明Description of the drawings
构成本实用新型的一部分的附图用来提供对本实用新型的进一步理解，本实用新型的示意性实施例及其说明用于解释本实用新型，并不构成对本实用新型的不当限定。在附图中：The drawings that constitute a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the attached picture:
图1为本实用新型的结构示意图；Figure 1 is a schematic structural diagram of the utility model;
图2为图1中A处的局部放大图；Figure 2 is a partial enlarged view of point A in Figure 1;
图3为本实用新型实施例中换热筒内部的结构示意图；Figure 3 is a schematic structural diagram of the interior of the heat exchange cylinder in the embodiment of the present utility model;
图4为本实用新型实施例中限流组件的结构示意图。Figure 4 is a schematic structural diagram of the current limiting component in the embodiment of the present invention.
附图标记说明：Explanation of reference symbols:
1-换热筒；2-密封门；3-通气管；4-异物收集盒；5-进水管；6-储水箱；7-出水管；8-拦截网；9-控制阀门；10-法兰管；11-导热管；12-限流组件；13-导热翅片；14-封堵件；15-导流罩；16-导向套；17-导向柱；18-弹性元件；19-限位块；20-疏通杆；21-卡箍；22-切割件；23-切割片；24-把手件。1-heat exchange cylinder; 2-sealing door; 3-ventilation pipe; 4-foreign body collection box; 5-water inlet pipe; 6-water storage tank; 7-water outlet pipe; 8-interception net; 9-control valve; 10-method Blue tube; 11-heat pipe; 12-flow limiting component; 13-heat-conducting fin; 14-blocking piece; 15-guide cover; 16-guide sleeve; 17-guide column; 18-elastic element; 19-limit Bit block; 20-dredge rod; 21-clamp; 22-cutting piece; 23-cutting piece; 24-handle piece.
具体实施方式Detailed ways
需要说明的是，在不冲突的情况下，本实用新型中的实施例及实施例中的特征可以相互组合。It should be noted that, as long as there is no conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.
在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地 包括一个或者更多个该特征。在本实用新型的描述中，除非另有说明，“多个”的含义是两个或两个以上。In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. The novel and simplified description does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined by "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本实用新型中的具体含义。In the description of the present utility model, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.
下面将参考附图并结合实施例来详细说明本实用新型。The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
一种锅炉设备用余热回收装置，如图1至图4所示，包括矩形换热筒1、换热筒1左右两端对应设置的过滤机构、以及换热筒1内设置的换热机构；所述过滤机构包括换热筒1上设置的通气管3、以及通气管3内设置的拦截网8，所述通气管3上对应拦截网8下方的位置设有异物收集盒4，该异物收集盒4与通气管3连通；所述换热机构包括换热筒1内间隔设置的数个导热管11、以及导热管11上设置的导热组件，各所述导热管11的两端均伸出换热筒1；所述换热筒1上方对应导热管11的位置设有储水组件、下方对应导热管11的位置设有供水组件。A waste heat recovery device for boiler equipment, as shown in Figures 1 to 4, includes a rectangular heat exchange cylinder 1, filter mechanisms provided at the left and right ends of the heat exchange cylinder 1, and a heat exchange mechanism provided in the heat exchange cylinder 1; The filtering mechanism includes a breather tube 3 provided on the heat exchange cylinder 1 and an interception net 8 provided in the breather tube 3. A foreign matter collection box 4 is provided on the breather tube 3 at a position corresponding to the position below the interception net 8. The foreign matter collection box 4 is provided. The box 4 is connected to the ventilation pipe 3; the heat exchange mechanism includes a plurality of heat conduction tubes 11 arranged at intervals in the heat exchange cylinder 1, and heat conduction components provided on the heat conduction tubes 11. Both ends of each of the heat transfer tubes 11 extend out. Heat exchange cylinder 1; a water storage component is provided above the heat exchange cylinder 1 at a position corresponding to the heat conduction pipe 11, and a water supply component is provided below at a position corresponding to the heat conduction pipe 11.
具体的，通气管3与换热筒1连通，通气管3可以焊接固定在换热筒1上，也可以通过法兰连接换热筒1，拦截网8可以焊接固定在通气管3上，本领域技术人员也可以采用其他方式安装固定拦截网8和通气管3；拦截网8可以对大块的异物进行拦截，避免导热翅片13 或导热管11因异物撞击而发生损坏，提高了这种余热回收装置在使用过程中的安全性和可靠性。Specifically, the vent pipe 3 is connected to the heat exchange cylinder 1. The vent pipe 3 can be welded and fixed on the heat exchange cylinder 1, or it can be connected to the heat exchange cylinder 1 through a flange. The interceptor net 8 can be welded and fixed on the vent pipe 3. This invention Those skilled in the art can also use other methods to install the fixed interception net 8 and the ventilation pipe 3; the interception net 8 can intercept large pieces of foreign matter to avoid damage to the heat-conducting fins 13 or the heat-conducting tube 11 due to the impact of foreign matter, which improves the The safety and reliability of the waste heat recovery device during use.
所述异物收集盒4可以通过螺钉安装固定在通气管3上，通气管3上对应异物收集盒4的位置可以设置落料口，异物收集盒4和通气管3之间可以设置机械密封结构，本领域技术人员也可以根据需要自行选择异物收集盒4的安装以及密封方式，只要可以实现异物收集盒4与通气管3之间的稳定连接即可，异物收集盒4可以很好地收集被拦截网8拦截的异物，避免异物堵塞拦截网8，确保这种余热回收装置的通风性能。The foreign matter collection box 4 can be installed and fixed on the ventilation pipe 3 by screws. A drop opening can be provided on the ventilation pipe 3 at a position corresponding to the foreign body collection box 4. A mechanical sealing structure can be provided between the foreign body collection box 4 and the ventilation pipe 3. Those skilled in the art can also choose the installation and sealing method of the foreign matter collection box 4 as needed, as long as a stable connection between the foreign matter collection box 4 and the ventilation pipe 3 can be achieved, and the foreign matter collection box 4 can be well collected and intercepted The foreign matter intercepted by the net 8 prevents the foreign matter from clogging the interception net 8 and ensures the ventilation performance of this waste heat recovery device.
所述换热筒1上对应导热管11的位置设有可拆卸的密封门2；具体的，密封门2可以采用现有余热锅炉上使用的门体，密封门2可以通过转轴或铰链转动安装在换热筒1上，换热筒1上可以设置用于固定密封门2的锁紧装置，例如搭扣锁，本领域技术人员也可以选择其他结构的密封门2、以及密封门2的安装及固定方式，只要可以使密封门2能够在换热筒1上开合，方便操作人员清理或维护导热管11及导热翅片13即可，通过设置密封门2，操作人员可以很方便的清理换热筒1内的灰尘，确保换热管及导热翅片13的导热效率，有利于提高这种余热回收装置的热量回收效率。The heat exchange cylinder 1 is provided with a removable sealing door 2 at a position corresponding to the heat transfer pipe 11; specifically, the sealing door 2 can be the door body used in existing waste heat boilers, and the sealing door 2 can be installed through a rotating shaft or hinge. The heat exchange cylinder 1 can be provided with a locking device, such as a hasp lock, for fixing the sealing door 2. Those skilled in the art can also choose other structures of the sealing door 2 and the installation of the sealing door 2. And the fixing method is as long as the sealing door 2 can be opened and closed on the heat exchange cylinder 1 to facilitate the operator to clean or maintain the heat pipe 11 and the heat conduction fin 13. By setting the sealing door 2, the operator can clean it very conveniently. The dust in the heat exchange cylinder 1 ensures the heat conduction efficiency of the heat exchange tube and the heat conduction fins 13, which is beneficial to improving the heat recovery efficiency of this waste heat recovery device.
所述导热组件包括导热管11上设置的导热翅片13，所述导热翅片13沿导热管11长度方向间隔设置有多个，相邻两个导热管11上的散热翅片呈V型或倒V型设置；具体的，所述导热管11可以焊接固定在换热筒1上，本领域技术人员也可以采用其他方式安装固定导 热管11，每一导热管11均竖直设置。The heat-conducting assembly includes heat-conducting fins 13 provided on the heat-conducting tube 11. A plurality of the heat-conducting fins 13 are arranged at intervals along the length direction of the heat-conducting tube 11. The heat-dissipating fins on two adjacent heat-conducting tubes 11 are V-shaped or Inverted V-shaped arrangement; specifically, the heat transfer tube 11 can be welded and fixed on the heat exchange cylinder 1, and those skilled in the art can also install and fix the heat transfer tube 11 in other ways, and each heat transfer tube 11 is arranged vertically.
所述导热翅片13可以与导热管11一体成型，也可以焊接固定，本领域技术人员也可以采用其他方式安装固定导热翅片13，通过在导热管11上密布导热翅片13，导热翅片13可以将废气中的热量更好的传导到导热管11上，导热管11上的热量可以加热导热管11和储水箱6内的液体，实现废气余热的回收和利用；呈V型或倒V型设置的导热翅片13可以形成波浪形的气体流动间隙，废气在通过换热筒1时，波浪形的气体流动间隙可以减缓废气的流动速度，同时又不会对废气的流动形成阻塞，通过降低废气的流动速度，高温废气可以更好的加热导热翅片13和导热管11，大大提高了导热翅片13和导热管11的热量收集效率，有利于提高这种余热回收装置整体的加热效率。The heat-conducting fins 13 can be integrally formed with the heat-conducting pipe 11 or can be welded and fixed. Those skilled in the art can also install and fix the heat-conducting fins 13 in other ways. By densely covering the heat-conducting fins 13 on the heat-conducting pipe 11, the heat-conducting fins can be fixed. 13 can better conduct the heat in the exhaust gas to the heat pipe 11. The heat on the heat pipe 11 can heat the liquid in the heat pipe 11 and the water storage tank 6 to realize the recovery and utilization of the waste heat of the exhaust gas; it is V-shaped or inverted V. The heat-conducting fins 13 arranged in a shape can form a wavy gas flow gap. When the exhaust gas passes through the heat exchange cylinder 1, the wavy gas flow gap can slow down the flow speed of the exhaust gas without blocking the flow of the exhaust gas. By reducing the flow speed of the exhaust gas, the high-temperature exhaust gas can better heat the heat-conducting fins 13 and the heat-conducting tubes 11, greatly improving the heat collection efficiency of the heat-conducting fins 13 and the heat-conducting tubes 11, which is beneficial to improving the overall heating efficiency of this waste heat recovery device. .
所述储水组件包括换热筒1上设置的储水箱6、以及储水箱6上设置的出水管7；所述导热管11与储水箱6连通，导热管11伸入储水箱6的一端设有限流组件12；具体的，储水箱6可以焊接固定在换热筒1上，本领域技术人员也可以采用其他方式安装固定储水箱6，只要可以实现储水箱6与换热筒1之间的稳定连接即可；通过将导热管11伸入储水箱6，导热管11不仅可以对流过导热管11的液体进行加热，也可以对储水箱6内的液体直接进行加热，进一步提高了导热管11的导热效果。The water storage component includes a water storage tank 6 provided on the heat exchange cylinder 1 and a water outlet pipe 7 provided on the water storage tank 6; the heat conduction pipe 11 is connected with the water storage tank 6, and one end of the heat conduction pipe 11 extends into the water storage tank 6. Flow-limiting assembly 12; specifically, the water storage tank 6 can be welded and fixed on the heat exchange cylinder 1. Those skilled in the art can also install and fix the water storage tank 6 in other ways, as long as the water storage tank 6 and the heat exchange cylinder 1 can be connected. A stable connection is enough; by extending the heat pipe 11 into the water storage tank 6, the heat pipe 11 can not only heat the liquid flowing through the heat pipe 11, but also directly heat the liquid in the water storage tank 6, further improving the efficiency of the heat pipe 11 thermal conductivity effect.
所述限流组件12包括导热管11上滑动设置的封堵件14，该封堵件14朝向导热管11的一端设有与导热管11管口配合的锥端部， 另一侧设有穹顶形的导流罩15；所述导热管11四周均匀设置有至少两个导向柱17，所述封堵件14上设有与导向柱17滑动配合的导向套16；所述导向柱17穿过导向套16的一端设有限位块19，另一端设置在导热管11上，所述导向柱17上对应限位块19与导向套16之间的位置设有弹性元件18，所述弹性元件18一端顶住限位块19，另一端顶住导向套16。The flow limiting assembly 12 includes a blocking member 14 slidably provided on the heat pipe 11. One end of the blocking member 14 facing the heat pipe 11 is provided with a tapered end that matches the mouth of the heat pipe 11, and the other side is provided with a dome. The heat-conducting pipe 11 is evenly provided with at least two guide posts 17 around it, and the blocking member 14 is provided with a guide sleeve 16 that slides with the guide posts 17; the guide posts 17 pass through One end of the guide sleeve 16 is provided with a limiting block 19, and the other end is provided on the heat pipe 11. The guide column 17 is provided with an elastic element 18 at a position corresponding to the position between the limiting block 19 and the guide sleeve 16. The elastic element 18 One end resists the limit block 19, and the other end resists the guide sleeve 16.
具体的，封堵件14为T型结构件，导流罩15可以与封堵件14一体成型，也可以焊接固定，本领域技术人员可以自行选择，为了提高封堵件14与导热管11接触处的密封效果，导热管11上也可以设置与锥端部配合的倒角；弹性元件18可以采用压缩弹簧，导向套16可以焊接固定在封堵件14或导流罩15上，也可以与封堵件14或导流罩15一体成型，封堵件14或导流罩15上可以设置用于安装导向套16的通孔；导向柱17可以焊接固定在导热管11上，限位块19可以焊接或通过螺钉安装固定在导向柱17上，本领域技术人员也可以采用其他方式安装上述元件，在这里不再赘述。Specifically, the blocking member 14 is a T-shaped structural member, and the flow guide 15 can be integrally formed with the blocking member 14 or welded and fixed. Those skilled in the art can choose by themselves. In order to improve the contact between the blocking member 14 and the heat pipe 11 To improve the sealing effect, the heat pipe 11 can also be provided with a chamfer that matches the cone end; the elastic element 18 can be a compression spring, and the guide sleeve 16 can be welded and fixed on the blocking member 14 or the deflector 15, or can be The blocking member 14 or the flow guide cover 15 is formed in one piece, and a through hole for installing the guide sleeve 16 can be provided on the blocking member 14 or the flow guide cover 15; the guide column 17 can be welded and fixed on the heat pipe 11, and the limit block 19 It can be welded or installed and fixed on the guide column 17 through screws. Those skilled in the art can also install the above components in other ways, which will not be described again here.
优选的，进水管5可以通过管夹安装固定在换热筒1上，本领域技术人员也可以采用其他方式在换热筒1上安装固定进水管5，进水管5也可以与水泵或增压泵连接，当进水管5不进水或水压过低时，封堵件14的锥端部可以在弹性元件18的复位弹力作用下向下***导热管11，实现对导热管11的封堵；封堵件14可以对导热管11起到很好的封堵作用，避免储水箱6内的热水发生大量回流，进而防止这种余热回收装置中的冷热水发生中和，有利于确保这种装置的加热效 果，本领域技术人员可以根据需要选择合适规格或弹力的弹性元件18，只要在不影响水流通过的情况下，弹性元件18能带动封堵件14对导热管11进行适当的封堵即可；Preferably, the water inlet pipe 5 can be installed and fixed on the heat exchange cylinder 1 through a pipe clamp. Those skilled in the art can also use other methods to install and fix the water inlet pipe 5 on the heat exchange cylinder 1. The water inlet pipe 5 can also be connected with a water pump or booster. Pump connection, when the water inlet pipe 5 does not enter the water or the water pressure is too low, the tapered end of the blocking member 14 can be inserted downward into the heat pipe 11 under the reset elastic force of the elastic element 18 to achieve the blocking of the heat pipe 11 ; The blocking member 14 can play a very good blocking role in the heat pipe 11, preventing a large amount of hot water in the water storage tank 6 from flowing back, thereby preventing the cold and hot water in the waste heat recovery device from neutralizing, which is beneficial to ensuring For the heating effect of this device, those skilled in the art can select the elastic element 18 with appropriate specifications or elasticity according to needs. As long as the elastic element 18 can drive the blocking member 14 to properly heat the heat pipe 11 without affecting the flow of water, Just block it;
当进水管5进水时，导热管11内的水压逐渐高于弹性元件18的弹力后，导热管11内的水压可以顶开封堵件14进入储水箱6内，进而实现对储水箱6内液体的补充，操作人员可以通过控制供水压力来实现对进水管5流速、以及导热管11流速的控制，操作起来十分方便；当导热管11向储水箱6供水时，封堵件14也可以对水流起到一定的阻塞作用，降低水流经导热管11进入储水箱6的流速，增加水流在导热管11内的加热时间和加热效果；由于封堵件14与导热管11不是完全密封贴合，导热管11少量的泄漏不会影响装置整体的加热效果，而且导热管11泄漏的水还可以用于冲刷导热管11清理过程中的水垢碎屑，方便操作人员后续清理导热管11内的水垢。When water enters the water inlet pipe 5, and the water pressure in the heat transfer pipe 11 gradually becomes higher than the elastic force of the elastic element 18, the water pressure in the heat transfer pipe 11 can push open the blocking member 14 and enter the water storage tank 6, thereby realizing the water storage tank. To replenish the liquid in 6, the operator can control the flow rate of the water inlet pipe 5 and the flow rate of the heat transfer pipe 11 by controlling the water supply pressure, which is very convenient to operate; when the heat transfer pipe 11 supplies water to the water storage tank 6, the blocking member 14 also It can play a certain blocking role in the water flow, reduce the flow rate of water entering the water storage tank 6 through the heat transfer pipe 11, and increase the heating time and heating effect of the water flow in the heat transfer pipe 11; because the blocking member 14 and the heat transfer pipe 11 are not completely sealed Together, a small amount of leakage from the heat transfer pipe 11 will not affect the overall heating effect of the device, and the leaked water from the heat transfer pipe 11 can also be used to wash away the scale debris during the cleaning process of the heat transfer pipe 11, making it convenient for the operator to subsequently clean the heat transfer pipe 11. Limescale.
优选的，所述出水管7设置在储水箱6上对应导热管11上方的位置；当导热管11内的水补入储水箱6时，经导热管11口流出的水可以沿导流罩15发生偏折，冷水可以向储水箱6底部流动，由于热水和冷水会产生分层，储水箱6上层的水温较高，因此通过将导热管11内的冷水向储水箱6下层引导，可以避免冷热水混杂，确保储水箱6上层的水温，进而确保经出水管7排出的均是加热后的热水，提高了这种余热回收装置的加热效果。Preferably, the water outlet pipe 7 is arranged on the water storage tank 6 at a position corresponding to the top of the heat transfer pipe 11; when the water in the heat transfer pipe 11 is replenished into the water storage tank 6, the water flowing out through the heat transfer pipe 11 can flow along the guide cover 15 Deflection occurs, and cold water can flow to the bottom of the water storage tank 6. Since hot water and cold water will stratify, the water temperature in the upper layer of the water storage tank 6 is higher. Therefore, by guiding the cold water in the heat pipe 11 to the lower layer of the water storage tank 6, it can be avoided. Mixing hot and cold water ensures the water temperature in the upper layer of the water storage tank 6, thereby ensuring that all the heated hot water discharged through the water outlet pipe 7 is heated, thereby improving the heating effect of this waste heat recovery device.
所述进水组件包括换热筒1上设置的进水管5、以及进水管5上设置的控制阀门9，所述进水管5通过L型法兰管10与导热管11连 通；具体的，所述控制阀门9和法兰管10均可以与进水管5通过法兰连接，本领域技术人员也可以根据需要选择其他方式安装控制阀门9和法兰管10，只要可以便于法兰管10的拆卸即可；控制阀门9可以采用现有的电控阀门或手动阀门，例如蝶阀等，本领域技术人员也可以采用其他形式的阀门、以及阀门的安装方式，只要可以实现对进水管5通断的控制即可，操作人员可以通过关闭控制阀门9，很方便的拆卸法兰管10，便于操作人员后续清洗或维护导热管11。The water inlet assembly includes a water inlet pipe 5 provided on the heat exchange cylinder 1 and a control valve 9 provided on the water inlet pipe 5. The water inlet pipe 5 is connected to the heat transfer pipe 11 through an L-shaped flange pipe 10; specifically, Both the control valve 9 and the flange pipe 10 can be connected to the water inlet pipe 5 through flanges. Those skilled in the art can also choose other ways to install the control valve 9 and the flange pipe 10 as needed, as long as the disassembly of the flange pipe 10 can be facilitated. That's it; the control valve 9 can use existing electronically controlled valves or manual valves, such as butterfly valves, etc. Those skilled in the art can also use other forms of valves and installation methods of the valves, as long as the connection of the water inlet pipe 5 can be realized The operator can easily disassemble the flange pipe 10 by closing the control valve 9, which facilitates subsequent cleaning or maintenance of the heat transfer pipe 11.
所述换热筒1上设有用于疏通导热管11的疏通杆20，该疏通杆20一端设有与导热管11配合的切割件22，另一端设有把手件24，所述储水箱6上设有用于固定疏通杆20的卡箍21；具体的，卡箍21可以通过螺钉安装固定在换热筒1上，本领域技术人员也可以采用其他方式安装固定卡箍21，卡箍21可以设置两个，也可以设置多个，本领域技术人员也可以根据需要选择合适的卡箍21，只要本领域技术人员可以利用卡箍21固定疏通杆20即可；把手件24可以与疏通杆20一体成型，也可以焊接固定，本领域人员可以自行选择，切割件22可以与疏通杆20一体成型，也可以焊接固定，本领域技术人员可以自行选择。The heat exchange cylinder 1 is provided with a dredge rod 20 for dredging the heat pipe 11. One end of the dredge rod 20 is provided with a cutting piece 22 that matches the heat pipe 11, and the other end is provided with a handle 24. The water storage tank 6 is There is a clamp 21 for fixing the dredge rod 20; specifically, the clamp 21 can be installed and fixed on the heat exchange cylinder 1 through screws. Those skilled in the art can also install and fix the clamp 21 in other ways. The clamp 21 can be set Two or more can be provided. Those skilled in the art can also select appropriate clamps 21 as needed, as long as those skilled in the art can use the clamps 21 to fix the dredge rod 20; the handle 24 can be integrated with the dredge rod 20 It can be formed or welded and fixed, and those skilled in the art can choose at their own discretion. The cutting piece 22 can be integrally formed with the dredge rod 20, or can be welded and fixed, and those skilled in the art can choose at their own discretion.
所述切割件22为十字型结构件，切割件22的各个端部均设有与导热管11滑动配合的弧形切割片23；具体的，切割片23可以与切割件22一体成型，也可以焊接固定，本领域技术人员可以自行选择，切割件22和切割片23上均可以设置用于刮除水沟的斜面或锥面，十字型的切割件22不仅可以对大块的水垢进行破碎切除，而且破碎后 的水沟碎屑可以通过切割件22掉出导热管11，操作起来十分方便，而切割片23则可以对导热管11内壁上的水沟起到很好的刮除作用，避免水垢在导热管11内壁上残留，提高导热管11的导热效率和导热效果。The cutting piece 22 is a cross-shaped structural member, and each end of the cutting piece 22 is provided with an arc-shaped cutting piece 23 that slides with the heat pipe 11; specifically, the cutting piece 23 can be integrally formed with the cutting piece 22, or can be For welding and fixation, those skilled in the art can choose by themselves. Both the cutting piece 22 and the cutting blade 23 can be provided with a bevel or a cone for scraping the ditch. The cross-shaped cutting piece 22 can not only crush and remove large pieces of scale. , and the broken ditch debris can fall out of the heat pipe 11 through the cutting piece 22, which is very convenient to operate, and the cutting piece 23 can play a very good role in scraping the ditch on the inner wall of the heat pipe 11 to avoid Scale remains on the inner wall of the heat pipe 11, thereby improving the thermal conductivity efficiency and effect of the heat pipe 11.
当操作人员需要疏通这种余热回收装置时，操作人员可以先关闭控制阀门9，然后拆除法兰管10，并将疏通杆20上的切割件22***导热管11，反复的抽拉疏通杆20，利用疏通杆20上的切割件22和切割盘23对导热管11内的水垢进行清理，清理过程中经导热管11泄漏的水可以将导热管11内的碎屑冲出导热管11，有利于加快导热管11的清理速度，操作人员也可以利用疏通杆20向上顶开封堵件14，使导热管11和储水箱6连通，利用储水箱6内的水来快速冲刷导热管11，进而快速达到清洗导热管11的目的，操作起来十分方便，大大提高了导热管11的清理效率，同时清理过程中也无需将储水箱6内的水排空，大大降低了这种装置的清理难度。When the operator needs to clear this waste heat recovery device, the operator can first close the control valve 9, then remove the flange pipe 10, insert the cutting piece 22 on the clearing rod 20 into the heat pipe 11, and repeatedly pull the clearing rod 20 , use the cutting piece 22 and the cutting disk 23 on the dredge rod 20 to clean the scale in the heat transfer pipe 11. During the cleaning process, the water leaking through the heat transfer pipe 11 can flush the debris in the heat transfer pipe 11 out of the heat transfer pipe 11. There is In order to speed up the cleaning of the heat transfer pipe 11, the operator can also use the dredge rod 20 to push up the blocking member 14 to connect the heat transfer pipe 11 with the water storage tank 6, and use the water in the water storage tank 6 to quickly flush the heat transfer pipe 11, and then The purpose of cleaning the heat pipe 11 is quickly achieved, and the operation is very convenient, which greatly improves the cleaning efficiency of the heat pipe 11. At the same time, there is no need to drain the water in the water storage tank 6 during the cleaning process, which greatly reduces the difficulty of cleaning this device.
本实用新型结构简单，余热回收利用效率高，易于装配和维护，尤其是便于操作人员清理装置内的灰尘和水垢，清理起来十分方便，大大降低了这种余热回收装置的维护和使用难度，提高了这种装置在运行过程中的可靠性和使用寿命；通过在导热管上设置导热翅片，导热管与换热筒内废气的接触面积更大，导热效果更好，通过将导热管伸入储水箱，导热管不仅可以对流过导热管的液体进行加热，也可以对储水箱内的液体进行加热，进一步提高了导热管的导热效果；导热管上的限流组件不仅可以降低导热管内的液体流速，而且还可以避免 储水箱内的液体大量回流导热管，有利于确保这种余热回收装置整体的加热效果。The utility model has a simple structure, high waste heat recovery and utilization efficiency, and is easy to assemble and maintain. It is especially convenient for operators to clean dust and scale in the device. It is very convenient to clean, greatly reducing the difficulty of maintenance and use of this waste heat recovery device, and improving This improves the reliability and service life of this device during operation; by arranging heat-conducting fins on the heat-conducting pipe, the contact area between the heat-conducting pipe and the exhaust gas in the heat exchange cylinder is larger, and the heat-conducting effect is better. By extending the heat-conducting pipe into In the water storage tank, the heat pipe can not only heat the liquid flowing through the heat pipe, but also heat the liquid in the water storage tank, further improving the heat conduction effect of the heat pipe; the flow limiting component on the heat pipe can not only reduce the amount of liquid in the heat pipe The flow rate can also prevent a large amount of liquid in the water storage tank from flowing back into the heat pipe, which is conducive to ensuring the overall heating effect of this waste heat recovery device.
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。The above descriptions are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in within the protection scope of this utility model.

Claims (9)

  1. 一种锅炉设备用余热回收装置，其特征在于：包括换热筒、换热筒左右两端对应设置的过滤机构、以及换热筒内设置的换热机构；所述过滤机构包括换热筒上设置的通气管、以及通气管内设置的拦截网，所述通气管上对应拦截网下方的位置设有异物收集盒，该异物收集盒与通气管连通；所述换热机构包括换热筒内间隔设置的数个导热管、以及导热管上设置的导热组件，各所述导热管的两端均伸出换热筒；所述换热筒上方对应导热管的位置设有储水组件、下方对应导热管的位置设有供水组件。A waste heat recovery device for boiler equipment, which is characterized in that it includes a heat exchange cylinder, filtering mechanisms provided at the left and right ends of the heat exchange cylinder, and a heat exchange mechanism provided in the heat exchange cylinder; the filtering mechanism includes The ventilation pipe is provided, and the interception net is provided in the ventilation pipe. A foreign matter collection box is provided on the ventilation pipe corresponding to the position below the interception net. The foreign matter collection box is connected with the ventilation pipe; the heat exchange mechanism includes a spacer inside the heat exchange cylinder. Several heat-conducting tubes are provided, as well as heat-conducting components provided on the heat-conducting tubes. Both ends of each heat-conducting tube extend out of the heat exchange cylinder; a water storage component is provided at the position corresponding to the heat-conducting tube above the heat exchange cylinder, and a water storage component is provided below the heat-conducting tube. The heat pipe is provided with a water supply component.
  2. 根据权利要求1所述的一种锅炉设备用余热回收装置，其特征在于：所述换热筒上对应导热管的位置设有可拆卸的密封门。A waste heat recovery device for boiler equipment according to claim 1, characterized in that: a detachable sealing door is provided on the heat exchange cylinder at a position corresponding to the heat conduction pipe.
  3. 根据权利要求1所述的一种锅炉设备用余热回收装置，其特征在于：所述导热组件包括导热管上设置的导热翅片，所述导热翅片沿导热管长度方向间隔设置有多个，相邻两个导热管上的散热翅片呈V型或倒V型设置。A waste heat recovery device for boiler equipment according to claim 1, characterized in that: the heat conduction component includes heat conduction fins provided on the heat conduction pipe, and a plurality of the heat conduction fins are spaced along the length direction of the heat conduction pipe. The heat dissipation fins on two adjacent heat pipes are arranged in a V-shape or an inverted V-shape.
  4. 根据权利要求1所述的一种锅炉设备用余热回收装置，其特征在于：所述储水组件包括换热筒上设置的储水箱、以及储水箱上设置的出水管；所述导热管与储水箱连通，导热管伸入储水箱的一端设有限流组件。A waste heat recovery device for boiler equipment according to claim 1, characterized in that: the water storage component includes a water storage tank provided on the heat exchange cylinder and a water outlet pipe provided on the water storage tank; the heat conduction pipe and the storage tank The water tanks are connected, and one end of the heat pipe extending into the water storage tank is provided with a flow limiting component.
  5. 根据权利要求4所述的一种锅炉设备用余热回收装置，其特征在于：所述限流组件包括导热管上滑动设置的封堵件，该封堵件朝向导热管的一端设有与导热管管口配合的锥端部，另一侧设有穹顶形的导流罩。A waste heat recovery device for boiler equipment according to claim 4, characterized in that: the flow-limiting assembly includes a plugging member slidably provided on the heat-conducting pipe, and one end of the plugging member toward the heat-conducting pipe is provided with the heat-conducting pipe. The conical end of the pipe mouth is matched with a dome-shaped deflector on the other side.
  6. 根据权利要求5所述的一种锅炉设备用余热回收装置，其特征在于：所述导热管四周均匀设置有至少两个导向柱，所述封堵件上设有与导向柱滑动配合的导向套；所述导向柱穿过导向套的一端设有限位块，另一端设置在导热管上，所述导向柱上对应限位块与导向套之间的位置设有弹性元件，所述弹性元件一端顶住限位块，另一端顶住导向套。A waste heat recovery device for boiler equipment according to claim 5, characterized in that: at least two guide columns are evenly arranged around the heat transfer pipe, and the blocking member is provided with a guide sleeve that slides with the guide columns. ; One end of the guide column passing through the guide sleeve is provided with a limit block, and the other end is provided on the heat pipe. An elastic element is provided on the guide column at a position between the corresponding limit block and the guide sleeve. One end of the elastic element Hold against the limit block and the other end against the guide sleeve.
  7. 根据权利要求1所述的一种锅炉设备用余热回收装置，其特征在于：所述进水组件包括换热筒上设置的进水管、以及进水管上设置的控制阀门，所述进水管通过L型法兰管与导热管连通。A waste heat recovery device for boiler equipment according to claim 1, characterized in that: the water inlet assembly includes a water inlet pipe provided on the heat exchange cylinder and a control valve provided on the water inlet pipe, and the water inlet pipe passes through L The flange tube is connected with the heat pipe.
  8. 根据权利要求7所述的一种锅炉设备用余热回收装置，其特征在于：所述换热筒上设有用于疏通导热管的疏通杆，该疏通杆一端设有与导热管配合的切割件，另一端设有把手件，所述储水箱上设有用于固定疏通杆的卡箍。A waste heat recovery device for boiler equipment according to claim 7, characterized in that: the heat exchange cylinder is provided with a dredge rod for dredging the heat conduction pipe, and one end of the dredge rod is provided with a cutting piece that matches the heat conduction pipe. The other end is provided with a handle piece, and the water storage tank is provided with a clamp for fixing the dredge rod.
  9. 根据权利要求8所述的一种锅炉设备用余热回收装置，其特征在于：所述切割件为十字型结构件，切割件的各个端部均设有与导热管滑动配合的弧形切割片。A waste heat recovery device for boiler equipment according to claim 8, characterized in that the cutting member is a cross-shaped structural member, and each end of the cutting member is provided with an arc-shaped cutting piece that slides with the heat transfer pipe.
PCT/CN2022/092925 2022-05-06 2022-05-16 Waste heat recovery device for boiler equipment WO2023212978A1 (en)

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