CN209512079U - A kind of novel rotary type air preheater - Google Patents

A kind of novel rotary type air preheater Download PDF

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Publication number
CN209512079U
CN209512079U CN201822239748.3U CN201822239748U CN209512079U CN 209512079 U CN209512079 U CN 209512079U CN 201822239748 U CN201822239748 U CN 201822239748U CN 209512079 U CN209512079 U CN 209512079U
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China
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air
supply tube
air supply
heat transfer
rotary type
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CN201822239748.3U
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Chinese (zh)
Inventor
张虎
王宏伟
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Suzhou meiyubang Environmental Technology Co.,Ltd.
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Kunshan Multi Beauty Et Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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Abstract

The utility model relates to a kind of novel rotary type air preheaters, are made of rotor compartment, purge system etc.；The heat transfer element being arranged radially along rotor compartment is arranged in rotor compartment；Purge system includes taking air hose, booster fan, air supply tube；Air supply tube is arranged at least two, and every air supply tube is independently connected with booster fan.The independent air supply tube of multichannel is arranged in the utility model, and cooperates solenoid valve etc., can select air supply tube according to specific air preheater stopping state, and adjusts air supply tube purging hot-blast pressure, and it is inadequate both to have avoided purging effort, ineffective；Unnecessary purging is also avoided, is not only saved energy, and reduces the injury that prolonged high-temperature blowing generates heat transfer element.Heat transfer element is arranged radially along rotor compartment simultaneously, makes purging that can sweep to each point between heat transfer element, purging effect is more preferable, and can reach good effect sweeping head diluter arrangement, saves cost.

Description

A kind of novel rotary type air preheater
Technical field
The utility model relates to air preheater field more particularly to a kind of novel rotary type air preheaters.
Background technique
Air preheater is domestic at present mostly to use helicoid air preheater, this structure is very compact, saves space.Air is pre- Hot device does not stall setting in dynamic rotor compartment, and there are many heat transfer elements, and heat transfer element is all the slices such as the steel plate for rolling into ripple What superposition fitted together, there is channel for gas to pass through in centre.When turning over high temperature flue, by with high-temperature flue gas It is heated after fluid heat exchange contact, is heated heat transfer element and continues to air duct, the air with flowing through low temperature therein Contact carries out heat exchange, heated air, reaches the mesh by heat exchange recycling heat, and the air delivery being heated to combustion chamber is made For combustion air or pulverized coal conveying.
As adding for national environmental protection policy is tight, there is strict demand to the content of the nitrogen oxides in the flue gas of discharge.Therefore it is close The coal-burning power plant Nian Laige strengthens the denitration work of flue gas, increases denitrification apparatus before air preheater, this transports air preheater Row has considerable influence: by SO in flue gas2To SO3Conversion ratio increase, i.e. SO in flue gas3Amount increases, flue gas acid dew point temperature Degree increases, and thus aggravates the acid corrosion of air preheater and blocks up ash.Evolution ammonia in SCR denitration or SNCR denitrating system (NH3) with flue gas in SO3It can be generated ammonium hydrogen sulfate (Ammonium Bisulphate-ABS) with water vapour, substance condensation Object is in intermediate acidity and has very big viscosity, is easily adhered on the heat exchange element surface of air preheater, again aggravation heat exchange The corrosion of element and stifled ash；Liquid is presented in certain temperature section in ammonium hydrogen sulfate simultaneously, can adsorb flying dust and form serious block up Fill in phenomenon.At gap between two layers of heat exchange element, since ammonium hydrogen sulfate absorption flying dust incrustation is put up a bridge, blocking can be generated and aggravated The case where.When two layers of heat exchange element is crossed in ammonium hydrogen sulfate incrustation region, because the presence at bridging makes incrustation block up grey speed Rate blocks up the rate of ash much larger than the incrustation in same layer heat exchange element, simultaneously as the presence at bridging, eventually at two layers The sandwich of layers that incrustation blocks up ash is formed between heat exchange element, boiler sootblowing steam or high-pressure wash medium pass through meeting wink after cold end heat exchange element Between spread, sandwich of layers can not be penetrated, medium temperature end heat exchange element is effectively cleaned and rinsed.
Patent CN201721408258.0 discloses a kind of purge system, can solve the above problem.But existing for it Problem is: the mode purged using single channel, evenly distributes the tolerance of each purging point, leads to the serious place purging of dust stratification not Foot, and the place excessively purging that some ash quantity are few, and the steam blowing of prolonged high temperature and pressure, will lead to the high temperature of element Damage it largely.The patent does not further investigate the set-up mode of heat conducting element simultaneously；And thermally conductive member conventional at present Part set-up mode is along arc to arrangement, i.e., identical as air preheater rotor rotation direction；And general sweeping head be it is radially arranged, It is vertical with rotation direction.When purging when so air preheater works, purging hot wind can be blown away along the gap between sheet of elements, heat Wind, to scattering, blows away the dust of interelement along arc, and thus there is the elements for facing blow valve port to blow relatively cleaner, and two Heat conducting element between a purging point purges deficiency, for purging effect, needs to purge the very close of an arrangement, to increase Cost.
Summary of the invention
The utility model overcomes the deficiencies in the prior art, provides that a kind of purging effect is good, novel rotations of cost savings Formula air preheater.
In order to achieve the above objectives, the technical solution adopted in the utility model are as follows: a kind of novel rotary type air preheater is provided, It is characterized by: being gone out by rotor compartment, Cryogenic air inlet end, high temperature air outlet side, high-temperature flue gas inlet end, low-temperature flue gas Gas end and purge system composition；The rotor compartment is cylindrical, is divided into several fan-shaped storehouse lattice, and setting passes in the storehouse lattice Thermal element；The heat transfer element is arranged radially along rotor compartment；The purge system includes taking air hose, booster fan, air-supply Pipe；Described that air hose one end is taken to be connected with high temperature air outlet side, the other end is connected with booster fan；The air supply tube setting At least two, every air supply tube is independently connected with booster fan, and is respectively provided with independent solenoid valve；The air-supply Pipe is respectively provided with several sweeping heads；The sweeping head is set at Cryogenic air inlet end.
As a preferred embodiment, independent pressure sensor is respectively provided on the every air supply tube.
As a preferred embodiment, the material of the heat transfer element is to examine to step on steel plate or enamelled pressed steel.
As a preferred embodiment, the purging direction of the sweeping head is consistent with Cryogenic air airintake direction.
As a preferred embodiment, electronic adjusting valve is arranged in described take on air hose.
As a preferred embodiment, temperature sensor is arranged in described take on air hose.
As a kind of more preferable scheme, pressure gauge is arranged in described take on air hose.
As a preferred embodiment, described to take setting electric guard board door on air hose.
The advantageous effects of the utility model essentially consist in: it is good, cost savings novel to provide a kind of purging effect Rotary regenerative air heater.
1, the independent air supply tube of multichannel is arranged in the utility model, and cooperates independent solenoid valve, pressure sensor The air supply tube that can purge corresponding heat transfer element region can be selected according to specific air preheater blocking position and serious conditions, and And the pressure of each air supply tube purging hot wind is adjusted respectively, keep purge operations more flexible, has both avoided part plug and blocked up serious area Domain purging effort is inadequate, causes cleaning effect bad；The unnecessary excessive purging in partial region is also avoided, energy has not only been saved Source, and reduce the injury that prolonged high-temperature blowing generates heat transfer element.
2, the heat transfer element of the utility model is arranged radially along rotor compartment；I.e. each piece element all turns with rotor compartment Sub- rotation direction is vertical.So in air preheater operation process, when hot-air blowing, the hot wind of each sweeping head blowout can be along diameter To scattering, the dust between heat transfer element is purged；Hot wind radially scatters, and can just purge the heat transfer element between two sweeping heads Dust, each point between such heat transfer element can be purged to, and purging effect is more preferable, and even if the diluter arrangement of sweeping head Also it can reach good effect, save cost.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the heat transfer element set-up mode schematic diagram (looking up) of the utility model.
Fig. 2 is sectional schematic diagram at the A-A of Fig. 1.
Fig. 3 is the heat transfer element set-up mode schematic diagram (looking up) of the prior art.
Fig. 4 is sectional schematic diagram at the B-B of Fig. 3.
Fig. 5 is the structural schematic diagram of the utility model.
Fig. 6 is the rotor compartment of the utility model and the relation schematic diagram of storehouse lattice (storehouse lattice only partially expose).
In figure: 1 being rotor compartment, 11 be storehouse lattice, 12 be heat transfer element, 2 be Cryogenic air inlet end, 3 be high temperature air Outlet side, 4 be high-temperature flue gas inlet end, 5 be low-temperature flue gas outlet side, 6 be purge system, 60 be purge system, 61 to take wind Pipe, 62 be booster fan, 63 be air supply tube, 64 be electric guard board door, 65 be temperature sensor, 66 be pressure gauge, 67 be electronic Adjusting valve, 68 be solenoid valve, 69 be pressure sensor.
Specific embodiment
The utility model is described in further detail presently in connection with drawings and examples, these attached drawings are simplified Schematic diagram only illustrates the basic structure of the utility model in a schematic way, therefore it only shows structure related with the utility model At.
As shown in figures 1 to 6, a kind of novel rotary type air preheater, by rotor compartment 1, Cryogenic air inlet end 2, high temperature air Outlet side 3, high-temperature flue gas inlet end 4, low-temperature flue gas outlet side 5 and purge system 6 form.
Rotor compartment 1 is cylindrical, is divided into several fan-shaped storehouse lattice 11, heat transfer element 12 is arranged in storehouse lattice 11；Heat transfer Element 12 is arranged radially along rotor compartment 1；I.e. each piece element 12 is all vertical with 1 rotor rotation direction of rotor compartment.So In air preheater operation process, when hot-air blowing, the hot wind that each sweeping head 60 is blown out can radially scatter, purging heat transfer member Dust between part 12；Hot wind radially scatters, and can just purge 12 dust of heat transfer element between two sweeping heads 60, passes in this way Each point between thermal element 12 can be purged to.(referring to Fig. 1-4, wherein arrow is equal in Fig. 1 and Fig. 3 compared with the prior art For direction of rotation, certain point of the axis of rotation on the vertical line of direction of rotation), this setting purging effect is more preferable, and even if purging First 60 diluter arrangement can also reach good effect, save cost.The material of heat transfer element 12 is to examine to step on steel plate or ward off Porcelain steel plate.
Purge system 6 includes taking air hose 61, booster fan 62, air supply tube 63；Take 61 one end of air hose and high temperature air outlet End 3 is connected, and the other end is connected with booster fan 62；It takes air hose 61 to be disposed as arc at each turning, reduces pipeline To the resistance of high temperature air.Take air hose 61 that electric guard board door 64 is set at high temperature air outlet side 3, for opening and being closed Air hose 61 is taken, control high temperature air enters purge system 6.It takes and temperature sensor 65 and pressure gauge 66 is set on air hose 61, be used for The temperature and pressure of the high temperature air for entering purge system 6 are monitored.It takes and electronic adjusting valve 67 is set on air hose 61, be used for Air quantity is adjusted according to purging situation.
Air supply tube 63 is arranged three, and every air supply tube 63 is closed at one end, and the other end is independently connected with booster fan 62 It connects；Every air supply tube 63 is respectively provided with several sweeping heads 60, and sweeping head 60 is set at Cryogenic air inlet end 2, sweeping head 60 It is consistent with Cryogenic air airintake direction to purge direction, can more easily remove tamper or dust between heat transfer element 12.Often The region of heat transfer element 12 corresponding to the sweeping head 60 of root air supply tube 63 is all different.Every air supply tube 63 is respectively provided with independent Solenoid valve 68 and pressure sensor 69 use solenoid valve 68 to cooperate pressure sensor 69 can be with separately adjustable each The hot-blast pressure of road air supply tube 63.The independent air supply tube 63 of multichannel is set, and independent solenoid valve 68, pressure is cooperated to pass Sensor 69 according to specific air preheater blocking position and serious conditions can select that sending for corresponding 12 region of heat transfer element can be purged Air hose 63, and the pressure that air supply tube 63 purges hot wind is adjusted respectively.As: the pressure of purging hot wind is improved if blocking is serious, instead Then reduce pressure；If only blocked in a certain region, it is only necessary to open the air supply tube 63 that can purge the region, make Purge operations are more flexible, and it is inadequate both to have avoided partial region purging effort, cause cleaning effect bad；Also avoid part area The unnecessary excessive purging in domain, not only saves energy, and reduces prolonged high-temperature blowing and generate injury to heat transfer element 12.
Present apparatus operation logic: high-temperature flue gas (360 DEG C or so) enters from high-temperature flue gas inlet end 4, will be hot by heat exchange Amount is transferred on heat transfer element 12, while cooling to 130 DEG C, is discharged from low-temperature flue gas outlet side 5；The rotation of 1 rotor of rotor compartment, It drives heat transfer element 12 to rotate, the heat transfer element 12 for absorbing amount of heat is gone into air side；25 DEG C of Cryogenic air is from low It after warm air inlet end 2 enters, and absorbs the heat transfer element 12 of amount of heat and conducts heat, reduce the temperature of heat transfer element 12 Air themperature is increased to 320 DEG C while spending, and is discharged from high temperature air outlet side 3, separately with used for other purposes.
Purge system 6 is sent by taking air hose 61 that part high temperature air is introduced system as hot wind (320 DEG C) are purged to adding After pressure fan 62 pressurizes to hot wind, it is sent to air supply tube 63, is finally blown out from sweeping head 60, to the heat transfer element 12 of rotor compartment 1 It is purged, is taken away after the ammonium hydrogen sulfate Quick-gasifying of viscosity can be made with air, remove tamper or dust.
It is above enlightenment according to the desirable embodiment of the utility model, through the above description, related personnel is complete Various changes and amendments can be carried out in the range of without departing from this item utility model technical idea.This item utility model Technical scope be not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.

Claims (8)

1. a kind of novel rotary type air preheater, it is characterised in that: by rotor compartment, Cryogenic air inlet end, high temperature air outlet End, high-temperature flue gas inlet end, low-temperature flue gas outlet side and purge system composition；The rotor compartment is cylindrical, is divided into Several sector storehouses lattice, the storehouse lattice are interior to be arranged heat transfer element；The heat transfer element is arranged radially along rotor compartment；The purging System includes taking air hose, booster fan, air supply tube；It is described that air hose one end is taken to be connected with high temperature air outlet side, the other end and Booster fan is connected；The air supply tube is arranged at least two, and every air supply tube is independently connected with booster fan, and Independent solenoid valve is set；The air supply tube is respectively provided with several sweeping heads；The sweeping head is set to Cryogenic air air inlet At end.
2. novel rotary type air preheater according to claim 1, it is characterised in that: be respectively provided on the every air supply tube solely Vertical pressure sensor.
3. novel rotary type air preheater according to claim 1, it is characterised in that: the material of the heat transfer element is to examine to step on Steel plate or enamelled pressed steel.
4. novel rotary type air preheater according to claim 1, it is characterised in that: the purging direction of the sweeping head and low Warm air airintake direction is consistent.
5. novel rotary type air preheater according to claim 1 to 4, it is characterised in that: electricity is arranged in described take on air hose Dynamic adjusting valve.
6. novel rotary type air preheater according to claim 1 to 4, it is characterised in that: temperature is arranged in described take on air hose Spend sensor.
7. novel rotary type air preheater according to claim 6, it is characterised in that: pressure gauge is arranged in described take on air hose.
8. novel rotary type air preheater according to claim 1 to 4, it is characterised in that: electricity is arranged in described take on air hose Dynamic baffle door.
CN201822239748.3U 2018-12-29 2018-12-29 A kind of novel rotary type air preheater Active CN209512079U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822239748.3U CN209512079U (en) 2018-12-29 2018-12-29 A kind of novel rotary type air preheater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822239748.3U CN209512079U (en) 2018-12-29 2018-12-29 A kind of novel rotary type air preheater

Publications (1)

Publication Number Publication Date
CN209512079U true CN209512079U (en) 2019-10-18

Family

ID=68198237

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822239748.3U Active CN209512079U (en) 2018-12-29 2018-12-29 A kind of novel rotary type air preheater

Country Status (1)

Country Link
CN (1) CN209512079U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210915

Address after: 215513 building 4, No. 2, Jianye Road, high tech Industrial Park, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province

Patentee after: Suzhou meiyubang Environmental Technology Co.,Ltd.

Address before: 215316 No. 2599, Huanqing Road, high tech Zone, Kunshan City, Suzhou City, Jiangsu Province

Patentee before: KUNSHAN MULTI BEAUTY ET Co.,Ltd.

TR01 Transfer of patent right