CN211425159U

CN211425159U - Heat pipe heat exchange device for waste heat recovery

Info

Publication number: CN211425159U
Application number: CN201921755664.3U
Authority: CN
Inventors: 刘秀如; 孙漪清; 薛方明; 屈江江; 赵爽; 苏靖程; 陈锋
Original assignee: Huadian Electric Power Research Institute Co Ltd
Current assignee: Huadian Electric Power Research Institute Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-09-04
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a heat pipe heat transfer device for waste heat recovery, including hot-blast main, hot-blast main and heat exchanger evaporation shell fixed mounting and intercommunication, heat exchanger evaporation shell fixed mounting and intercommunication have the outlet duct, the inside fixed mounting of heat exchanger evaporation shell has the evaporating pipe, the inside top fixed mounting of heat exchanger evaporation shell has a plurality of sound wave soot blowers, the top middle part fixedly connected with air compression soot blower of heat exchanger evaporation shell, the upper end fixed mounting and the intercommunication of evaporating pipe have steam tedge, the other end of steam tedge and the top fixed mounting and the intercommunication of heat exchanger condensation shell, the inside fixed mounting of heat exchanger condensation shell has the condenser pipe, the other end of steam tedge passes heat exchanger condensation shell and is linked together with the top of condenser pipe, the bottom fixed mounting and the intercommunication of condenser pipe have the back flow. The utility model is scientific and reasonable, good in waste heat absorption and utilization effect, environment-friendly and suitable for popularization and application.

Description

Heat pipe heat exchange device for waste heat recovery

Technical Field

The utility model relates to a heat transfer device especially relates to a heat pipe heat transfer device for waste heat recovery.

Background

The recycling of energy is a subject of research, and heat energy is an energy source which must be used in industrial production, coal-fired power plants and the like, but in the process of using the heat energy, hot steam, hot flue gas and hot waste gas of the industrial production and the coal-fired power plants cannot be well utilized, so that the phenomenon of heat energy waste occurs in the process of using the heat energy. The heat transfer efficiency of the high-temperature gas discharged after combustion is poor, and the heat is difficult to reasonably recycle. Especially for the exhaust gas temperature of the air preheater of the coal-fired power plant, the exhaust gas temperature is usually reduced as much as possible in order to improve the boiler efficiency, but the risk of corrosion to equipment caused by low-temperature condensation of acid gas in the exhaust gas is faced. Therefore, the heat pipe heat exchange device for waste heat recovery is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a heat pipe heat transfer device for waste heat recovery, solved the high temperature flue gas heat and be difficult to reasonable recycle and the extravagant problem of heat that leads to.

The utility model provides a technical scheme that above-mentioned problem adopted is: a heat pipe heat exchange device for waste heat recovery comprises a hot air pipeline and is characterized in that the hot air pipeline is fixedly installed and communicated with a heat exchanger evaporation shell, the heat exchanger evaporation shell is fixedly installed and communicated with an air outlet pipe, an evaporation pipe is fixedly installed inside the heat exchanger evaporation shell, a plurality of sound wave soot blowers are fixedly installed at the top end inside the heat exchanger evaporation shell, an air compression soot blower is fixedly connected to the middle of the top end of the heat exchanger evaporation shell, a steam riser pipe is fixedly installed and communicated with the upper end of the evaporation pipe, the other end of the steam riser pipe is fixedly installed and communicated with the top end of the heat exchanger condensation shell, a condensation pipe is fixedly installed inside the heat exchanger condensation shell, the other end of the steam riser pipe penetrates through the heat exchanger condensation shell and is communicated with the top end of the condensation pipe, and the bottom end of the condensation pipe is fixedly installed and communicated with, the other end of the return pipe sequentially penetrates through a heat exchanger condensation shell and a heat exchanger evaporation shell and is communicated with the bottom fixed mounting of the evaporation pipe, a cold air pipe is fixedly mounted and communicated with one side of the heat exchanger condensation shell, a blower is fixedly mounted and communicated with the cold air pipe, and an air outlet pipe is fixedly mounted and communicated with the other side of the heat exchanger condensation shell.

Preferably, the bottom end of the evaporation shell of the heat exchanger is a slope bottom and is provided with an ash outlet, and the outer side of the ash outlet is movably connected with a closed door.

Preferably, the evaporation pipe is filled with heat exchange water.

Preferably, a plurality of upper fins are uniformly and fixedly connected to the outer wall of the condensation pipe.

Preferably, a plurality of lower fins are uniformly and fixedly mounted on the outer wall of the evaporation tube, and the lower fins are inclined downwards.

Compared with the prior art, the utility model, have following advantage and effect: through the mutual arrangement of the air feeder, the heat exchanger evaporation shell, the heat exchanger condensation shell, the lower fins, the evaporation pipe and the condensation pipe, the heat absorption utilization of hot flue gas, hot steam and hot waste gas can be realized, and the utilization rate of heat of the hot flue gas, the hot steam and the hot waste gas is greatly improved; through the setting of sound wave soot blower, air compression soot blower and ash hole, can carry out the deashing to evaporating pipe, lower fin and heat exchanger evaporation shell and handle, easy operation is convenient, and cleaning effect is good, the utility model discloses scientific and reasonable absorbs and utilizes effectually, and the environmental protection is fit for using widely moreover to hot flue gas, hot steam and hot waste gas heat.

Drawings

Fig. 1 is a schematic structural diagram of a heat pipe heat exchanging device for waste heat recovery in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a heat pipe heat exchanger for waste heat recovery in an embodiment of the present invention, which utilizes an air preheater.

In the figure: the device comprises a blower 1, a cold air pipe 2, an upper fin 3, an air outlet pipe 4, a hot air pipeline 5, a heat exchanger evaporation shell 6, a return pipe 7, an air outlet pipe 8, a heat exchanger condensation shell 9, a steam ascending pipe 10, a sound wave soot blower 11, a soot outlet 12, a lower fin 13, an evaporation pipe 14, a condensation pipe 15, an air compression soot blower 16 and an air preheater 17.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1 to 2, the heat pipe heat exchanging device for waste heat recovery in this embodiment includes a hot air pipe 5, a right end of the hot air pipe 5 is fixedly installed and communicated with a left end of a heat exchanger evaporation shell 6, the hot air pipe 5 is used for allowing external hot flue gas, hot steam and hot waste gas to enter the heat exchanger evaporation shell 6, an air outlet pipe 8 is fixedly installed and communicated with a right end of the heat exchanger evaporation shell 6 for hot gas exhaust, an evaporation pipe 14 is fixedly installed inside the heat exchanger evaporation shell 6, a plurality of acoustic soot blowers 11 are fixedly installed at a top end inside the heat exchanger evaporation shell 6, the dust on the evaporation pipe 14 and on lower fins 13 can be blown off by the arrangement of the acoustic soot blowers 11, an air compression soot blower 16 is fixedly connected to a middle portion of the top end of the heat exchanger evaporation shell 6 to further remove the dust in the heat exchanger evaporation shell 6, an upper end of the evaporation pipe 14 is fixedly installed and communicated with a steam, the steam ascending pipe 10 is used for steam ascending after water in the evaporating pipe 14 is evaporated, the other end of the steam ascending pipe 10 is fixedly installed and communicated with the top end of the heat exchanger condensation shell 9, the condensing pipe 15 is fixedly installed inside the heat exchanger condensation shell 9, the other end of the steam ascending pipe 10 penetrates through the heat exchanger condensation shell 9 and is communicated with the top end of the condensing pipe 15, the condensing pipe 15 is used for condensing steam into water after heat dissipation, the bottom end of the condensing pipe 15 is fixedly installed and communicated with the return pipe 7, the return pipe 7 is used for enabling water to flow back into the evaporating pipe 14 in a circulating manner, the other end of the return pipe 7 sequentially penetrates through the heat exchanger condensation shell 9 and the heat exchanger evaporation shell 6 and is fixedly installed and communicated with the bottom end of the evaporating pipe 14, the left end of the heat exchanger condensation shell 9 is fixedly installed and communicated with the cold air pipe 2, the left end of the cold air pipe 2 is fixedly installed and communicated with, the air outlet pipe 4 can transmit hot air to equipment needing the hot air for utilization.

In the embodiment, the bottom end of the heat exchanger evaporation shell 6 is a slope bottom and is provided with an ash outlet 12, and the outer side of the ash outlet 12 is movably connected with a closed door, so that the ash in the flue gas can be conveniently led out by the design; the injection has the heat of trading hot water in the evaporating pipe 14, and this design realizes that evaporating pipe 14 absorbs the heat in the steam, and even fixedly connected with is a plurality of fin 3 of going up on the outer wall of condenser pipe 15, has improved condenser pipe 15 to thermal release effect, and even fixed mounting has a plurality of lower fins 13 on evaporating pipe 14's the outer wall to fin 13 downward sloping down is convenient for blow the ash time dust whereabouts, has improved evaporating pipe 14 to thermal absorption effect simultaneously.

The implementation process comprises the following steps: the device can recycle heat energy of various hot smoke, hot steam and hot waste gas, when in use, the hot smoke, the hot steam and the hot waste gas enter the inside of the evaporation shell 6 of the heat exchanger from the hot air pipeline 5, the evaporation pipe 14 can absorb the heat in the hot smoke, the hot steam and the hot waste gas, the lower fin 13 can improve the effect of absorbing the heat in the hot smoke, the hot steam and the hot waste gas, the evaporation pipe 14 transmits the heat into heat exchange water, the heat exchange water is converted into water vapor, the hot smoke, the hot steam and the hot waste gas are discharged through the air outlet pipe 8 after the heat is absorbed, the water vapor enters the condensation pipe 15 through the steam ascending pipe 10, the air blower 1 blows cold air into the condensation shell 9 of the heat exchanger through the cold air pipe 2, and the cold air absorbs the water through the condensation pipe 15, the water vapor can be liquefied into heat exchange water, the heat exchange water flows into the evaporation pipe 14 through the return pipe 7, and then realize the cyclic utilization to exchanging hot water, cold wind absorbs the heat in the vapor through condenser pipe 15 and becomes hot-blast, and hot-blast air is utilized in entering into the equipment that needs to use steam through air-out pipe 4, for example: in the production of a coal-fired power plant, the device can be utilized, referring to fig. 2, hot flue gas generated by a coal-fired boiler of the power plant enters the inside of an evaporation shell 6 of a heat exchanger through a hot air pipeline 5, after the heat exchange process, hot air can enter an air preheater 17 from an air outlet pipe 4 for utilization, a plurality of groups of air blowers 1, cold air pipes 2, air outlet pipes 4, a condensation shell 9 of the heat exchanger and related parts can be arranged, a plurality of hot air strands can be led out through the air outlet pipes 4 for utilization, an acoustic wave soot blower 11 and an air compression soot blower 16 can be used for cleaning soot on the inner walls of the evaporation pipe 14, a lower fin 13 and the evaporation shell 6 of the heat exchanger, and the soot can be discharged from an ash outlet 12 by opening a; through the mutual matching of the components such as the air feeder 1, the heat exchanger evaporation shell 6, the heat exchanger condensation shell 9, the lower fins 13, the evaporation pipe 14, the condensation pipe 15 and the like, the heat absorption utilization of hot flue gas, hot steam and hot waste gas can be realized, and the utilization rate of heat of the hot flue gas, the hot steam and the hot waste gas is greatly improved; through the arrangement of the acoustic wave soot blower 11, the air compression soot blower 16 and the soot outlet 12, the soot cleaning treatment can be performed on the evaporation tube 14, the lower fin 13 and the evaporation shell 6 of the heat exchanger, the operation is simple and convenient, and the cleaning effect is good; the utility model is scientific and reasonable, it is effectual to hot flue gas, hot steam and hot waste gas heat absorption utilization, the environmental protection is fit for using widely moreover.

Those not described in detail in this specification are well within the skill of the art.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first," "second," "first," "second," etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.

Claims

1. The heat pipe heat exchange device for waste heat recovery comprises a hot air pipeline (5) and is characterized in that the hot air pipeline (5) is fixedly installed and communicated with a heat exchanger evaporation shell (6), an air outlet pipe (8) is fixedly installed and communicated with the heat exchanger evaporation shell (6), an evaporation pipe (14) is fixedly installed inside the heat exchanger evaporation shell (6), a plurality of sound wave soot blowers (11) are fixedly installed at the top end inside the heat exchanger evaporation shell (6), an air compression soot blower (16) is fixedly connected to the middle of the top end of the heat exchanger evaporation shell (6), a steam ascending pipe (10) is fixedly installed and communicated with the upper end of the evaporation pipe (14), the other end of the steam ascending pipe (10) is fixedly installed and communicated with the top end of a heat exchanger condensation shell (9), and a condensation pipe (15) is fixedly installed inside the heat exchanger condensation shell (9), the other end of steam tedge (10) passes heat exchanger condensation shell (9) and is linked together with the top of condenser pipe (15), the bottom fixed mounting and the intercommunication of condenser pipe (15) have back flow (7), the other end of back flow (7) pass heat exchanger condensation shell (9) and heat exchanger evaporation shell (6) in proper order and with the bottom fixed mounting and the intercommunication of evaporating pipe (14), one side fixed mounting and the intercommunication of heat exchanger condensation shell (9) have cold air duct (2), cold air duct (2) fixed mounting and intercommunication have forced draught blower (1), the opposite side fixed mounting and the intercommunication of heat exchanger condensation shell (9) have air-out pipe (4).

2. The heat pipe heat exchange device for waste heat recovery according to claim 1, wherein the bottom end of the heat exchanger evaporation shell (6) is a slope bottom and is provided with an ash outlet (12), and the outer side of the ash outlet (12) is movably connected with a closed door.

3. The heat pipe heat exchange device for waste heat recovery according to claim 1, wherein the evaporation pipe (14) is filled with heat exchange water.

4. The heat pipe heat exchange device for waste heat recovery as recited in claim 1, wherein a plurality of upper fins (3) are uniformly and fixedly connected to the outer wall of the condensation pipe (15).

5. The heat pipe heat exchanging device for waste heat recovery as recited in claim 1, wherein a plurality of lower fins (13) are uniformly and fixedly installed on the outer wall of the evaporation pipe (14), and the lower fins (13) are inclined downwards.