CN105150679A - Waste heat recovery ventilator - Google Patents
Waste heat recovery ventilator Download PDFInfo
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- CN105150679A CN105150679A CN201510729306.5A CN201510729306A CN105150679A CN 105150679 A CN105150679 A CN 105150679A CN 201510729306 A CN201510729306 A CN 201510729306A CN 105150679 A CN105150679 A CN 105150679A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a waste heat recovery ventilator. The side, close to a return air inlet, in a ventilator shell is provided with two heat exchangers in the vertical direction, a heat isolation air channel is arranged between the return air inlet face of the first heat exchanger and the return air inlet, a first isolation air channel and a second isolation air channel are arranged between the return air outlet face of the first heat exchanger and the return air inlet face of the second heat exchanger, and a third isolation air channel is arranged between the return air outlet face of the second heat exchanger and an air exhaust port. According to the waste heat recovery ventilator, the heat isolation air channel, the three isolation air channels and return air channels of the first heat exchanger and the second heat exchanger together form a sealed and isolated air exhaust channel in the ventilator shell, and explosion preventing and solvent corrosion resisting treatment and extra heat insulation treatment on the ventilator shell of the whole ventilator are avoided. The waste heat recovery ventilator can be used for performing heat recovery on waste gas of all drying boxes of a multi-color gravure printing machine or waste gas of a compound machine and supplying gas to all the drying boxes simultaneously.
Description
Technical field
The present invention relates to a kind of waste heat recovery ventilator, particularly relate to simple, the efficient waste heat recovery ventilator of structure.
Background technology
Waste heat refers in production process and can be produced and unemployed heat energy in equipment, chemical reaction equipment and production technology by various thermal power transfer equipment, use.A large amount of waste heat needing to recycle is there is at industrial circles such as textile printing and dyeing, plating processing, chemical pharmaceutical, printing oven dry, coal slime oven dry.If this part energy can be made full use of by recovery, will greatly reduce industrial energy loss.
Waste heat can be divided into solid-state carrier waste heat, liquid carrier waste heat and gaseous carrier waste heat by form.Wherein gaseous carrier heat recovery technology mainly contains: hot pipe technique, heat pump techniques, phase-change heat-exchanger, plate type heat exchanger, storage heater and waste heat boiler etc.Reclaimed by the residual heat resources to flue gas, the residual heat resources of dispersing steam and combustible waste gases, more heat can be obtained.
Such as, at printing drying field, along with the development of packaging industry in recent years, the use of the equipment such as intaglio press, compounding machine is more and more extensive.Flexible packaging printing industry equipment dry heat energy consumption, up to 60% ~ 80% of total energy consumption, accounts for about 3% ~ 5% of total printing cost, brings heavy cost pressure to each printing enterprise.If reclaimed waste heat by hot swapping, make the air of feeding dryer possess certain heat, will greatly improve the utilization rate of heat, reduce energy consumption, and save printing cost.For this reason, relevant enterprise have developed the various equipment for waste heat recovery, for improving heat recovery efficiency.Such as, printing drier disclosed in the Chinese utility model that Authorization Notice No. is CN203543342U, by the portion of printing machine and fresh air are carried out the temperature that heat exchange improves fresh air, send into printing machine inside after then being mixed with fresh air by all the other waste gas in the lump for recycling.In this printing drier, in order to better control the temperature of the air sending into dryer inside, also using the equipment such as compressor and temperature control is carried out to refrigerant, and making refrigerant and air carry out heat exchange.Above-mentioned printing drier, on the one hand waste gas is directly recycled, make the inflammable and explosive perishable gases such as gasoline in waste gas, ethyl acetate, ethyl acetate, toluene, dimethylbenzene again enter dryer inside, the gaseous environment of dryer inside is impacted, there is potential safety hazard; On the other hand, in this printing drier, also use complicated heat-exchange system and carry out heat exchange, this creates new energy consumption while recuperation of heat, have impact on the effect of energy-saving and emission-reduction.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides simple, the efficient waste heat recovery ventilator of a kind of structure.
In order to realize foregoing invention object, present invention uses following technical proposals:
A kind of waste heat recovery ventilator, the casing of described waste heat recovery ventilator comprises base, the framework be fixed on described base, and fixing multiple panels on said frame, wherein, upper left side plate offers air outlet, lower side offers fresh wind port, upper right side plate offers return air inlet, bottom right side plate offers exhaust outlet;
In the side of described casing internal near described return air inlet, vertically be provided with two heat exchangers, be respectively the first heat exchanger and the second heat exchanger, the cross aisle that described first heat exchanger and described second heat exchanger to have from upper left downward-extension to the right respectively and extend to left down from upper right;
Thermal insulation separation is provided with from air channel between the return air air intake surface and described return air inlet of described first heat exchanger, between the return air outlet air surface and the return air air intake surface of described second heat exchanger of described first heat exchanger, be provided with the first isolation air channel and the second isolation air channel, between the return air outlet air surface and described exhaust outlet of described second heat exchanger, be provided with the 3rd isolation air channel.
Wherein more preferably, described thermal insulation separation is leg-of-mutton air channel from air channel and three isolation Jun Shi cross sections, air channel;
Described isolation air channel comprises triangle body framework, the side at a right-angle side place of described triangle body framework is provided with rectangular slab, and being respectively arranged with triangular plate at two end faces, the described side at triangle body framework another one right-angle side place and the side at hypotenuse place form air intake surface and the outlet air surface in isolation air channel respectively;
Described thermal insulation separation refers to that from air channel the isolation air channel of insulation material is set up in the outside at described rectangular slab and described triangular plate.
Wherein more preferably, sealing heat insulating strip is provided with at described thermal insulation separation between air channel and the return air air intake surface of described first heat exchanger; Sealing heat insulating strip is provided with between described first isolation air channel and the return air outlet air surface of described first heat exchanger; Sealing heat insulating strip is provided with between described isolation air channel and the return air air intake surface of described second heat exchanger; Sealing heat insulating strip is provided with between described 3rd isolation air channel and the return air outlet air surface of described second heat exchanger.
Wherein more preferably, between described first isolation air channel and described second isolation air channel, be provided with two isolation airducts and sealing heat insulating strip, described sealing heat insulating strip is arranged between two isolation airducts.
Wherein more preferably, the bottom in described 3rd isolation air channel is provided with osculum.
Wherein more preferably, the middle level framework of described casing is also provided with middle level dividing plate, the left field of described casing internal is divided into the new wind space of the air-supply space on upper strata and lower floor by described middle level dividing plate.
Wherein more preferably, spiral heater is had at described new wind spatial placement;
The bottom of described second heat exchanger is provided with water-collecting tray, and the drainpipe of described water-collecting tray is connected to the water inlet of described spiral heater by pipeline.
Wherein more preferably, in described air-supply space, be provided with breeze fan, described breeze fan adopts without volute casing centrifugal blower fan, and the motor of described breeze fan is arranged on described casing outside.
Wherein more preferably, exhaust fan adopts external mode to be arranged on the outside of described casing, and described exhaust fan is band spiral case list air intake centrifugal blower fan; The air inlet of described exhaust fan is connected with described exhaust outlet with reducing airduct by exhaust blower airduct successively.
Wherein more preferably, fixing all panels are on said frame all two sides foamed boards.
Waste heat recovery ventilator provided by the present invention, by being provided with insulation channel isolation and three channel isolations therein, make itself and the first heat exchanger form the air exhaust passage of seal isolation together with the return air channel of the second heat exchanger, thus avoid explosion-proof, solvent resistant corrosion treatmentCorrosion Science and extra isothermal holding are carried out to the casing of complete machine.In addition, by the new wind interval setting dish pipe heater at air-supply passage, and the high-temperature water of condensation after Steam Heating in residual neat recovering system is passed into this spiral heater, make new wind through spiral heater after preheating, the used heat of discharging with printing equipment again carries out heat exchange, at utmost can improve the temperature of new wind, be directly used in printing drier and use, realize maximum energy-saving effect.This waste heat recovery ventilator has higher heat recovery rate, and the equivalent waste gas that can be used for 80-120 DEG C carries out recuperation of heat.Therefore, above-mentioned waste heat recovery ventilator, can be used for carrying out recuperation of heat to all drying bakers of multicolor intaglio press or the waste gas of compounding machine, and can carry out air feed to all drying bakers simultaneously.
Accompanying drawing explanation
Fig. 1 is the perspective view of waste heat recovery ventilator provided by the invention;
Fig. 2 is the perspective view at another visual angle of waste heat recovery ventilator provided by the invention;
Fig. 3 is the internal structure schematic diagram of waste heat recovery ventilator provided by the invention;
Fig. 4 is the heat exchange principle schematic diagram of the ventilator of waste heat recovery shown in Fig. 3;
Fig. 5 is the signal of the ventilator internal solvent district of waste heat recovery shown in Fig. 3 and high-temperature region;
Fig. 6 is in the ventilator of waste heat recovery shown in Fig. 3, is arranged at the structural representation of the insulation channel isolation in air exhaust passage;
Fig. 6 A is the A portion enlarged diagram of the channel isolation of insulation shown in Fig. 6;
Fig. 6 B is the B portion enlarged diagram of the channel isolation of insulation shown in Fig. 6;
Fig. 6 C is the C portion enlarged diagram of the channel isolation of insulation shown in Fig. 6;
Fig. 7 is in the ventilator of waste heat recovery shown in Fig. 3, is arranged at structural representation and the close-up schematic view of two channel isolations in air exhaust passage;
Fig. 8 is the heat transfer effect schematic diagram of the ventilator of waste heat recovery shown in Fig. 3.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technology contents of the present invention is described in further detail.
The casing of waste heat recovery ventilator provided by the invention comprises base 1, is fixed on the framework on base 1 and is fixed on the multiple panels on framework, and all panels adopt the two sides foamed board for being incubated.Framework is made up of multiple brace summer, and framework is fixed with top board 2, header board, rear plate, upper left side plate 8, lower side 9, upper right side plate 4 and bottom right side plate 5, thus forms an enclosed housing.Wherein, upper left side plate 8 offers air outlet 40, lower side 9 offers fresh wind port, upper right side plate 4 offers return air inlet 11, bottom right side plate 5 offers exhaust outlet.
Fig. 1 and Fig. 2 is the perspective view of the waste heat recovery ventilator after removing header board respectively; Fig. 3 is the internal structure schematic diagram of waste heat recovery ventilator, and Fig. 4 is the heat exchange principle schematic diagram of waste heat recovery ventilator.Be as the criterion with the orientation shown in Fig. 3 below and the structure of this waste heat recovery ventilator is described.
Composition graphs 1 to Fig. 4 is known, in the right positions of the casing internal of waste heat recovery ventilator, vertically be provided with two heat exchangers, be respectively the first heat exchanger 12 and the second heat exchanger 13, first heat exchanger 12 and the second heat exchanger 13 are plate-fin distributary heat exchangers, and adopt the horizontal mode of rhombus to arrange at casing internal, its short transverse extends along the fore-and-aft direction of casing, the cross aisle that the first heat exchanger 12 and the second heat exchanger 13 to have from upper left downward-extension to the right respectively and extend to left down from upper right.The corner angle staff of the first heat exchanger 12 is connected on top support beam, a left comer alignment left side extends on a certain vertical brace summer 10 of casing internal, the right extension of right corner alignment is also connected to the middle part of upper right side plate 4, and footing alignment downward-extension is also connected on middle level framework 20; The footing line of the first heat exchanger 12 and the corner angle staff of the second heat exchanger 13 are separately fixed at the both sides up and down of middle level framework 20 same position, between the footing line and the corner angle staff of the second heat exchanger 13 of the first heat exchanger 12, be provided with sealing heat insulating strip; The left extension of left comer alignment of the second heat exchanger 13 is also connected on the same vertical brace summer 10 of casing internal with the left comer line of the first heat exchanger 12, and the right extension of right corner alignment is also connected to the middle part of bottom right side plate 5, and footing alignment downward-extension is connected on base 1.Thus the new wind functional area in left side and the heat exchange area on right side is formed in the inside of casing.
Also be provided with thermal insulation separation from air channel 14 and three isolation air channels at casing internal, thermal insulation separation is leg-of-mutton air channel from air channel 14 and three isolation Jun Shi cross sections, air channel, for controlling the flow direction of return air.It is triangle body framework that isolation air channel comprises cross section, the side at a right-angle side place of triangle body framework is provided with rectangular slab, and being respectively arranged with triangular plate at two end faces, the side at triangle body framework another one right-angle side place and the side at hypotenuse place form air intake surface and the outlet air surface in isolation air channel respectively.Thermal insulation separation refers to that from air channel 14 the isolation air channel of insulation material is set up in the outside at rectangular slab and triangular plate.Between the return air air intake surface that thermal insulation separation is arranged on the first heat exchanger 12 from air channel 14 and the return air inlet 11 of casing, first isolation air channel 15 and the second isolation air channel 18 are arranged between the return air outlet air surface of the first heat exchanger 12 and the return air air intake surface of the second heat exchanger 13, be connected with 17 by isolation airduct 16 and form seal channel, between the return air outlet air surface that the 3rd isolation air channel 19 is arranged on the second heat exchanger 13 and the exhaust outlet of casing between first isolation air channel 15 and the second isolation air channel 18.Thermal insulation separation defines at casing internal one extends seal isolation air exhaust passage from return air inlet 11 to exhaust outlet from from the return air channel of isolation air channel, 14, three, air channel, the first heat exchanger 12 inside together with the return air channel of the second heat exchanger 13 inside.Other spaces isolation of whole air exhaust passage and casing internal.
In this waste heat recovery ventilator, exhaust fan 22 adopts external mode to be arranged on the outside of casing.Exhaust fan 22 can adopt band spiral case list air intake centrifugal blower fan, thus meets its solvent resistant and explosion-proof requirement; Its air inlet is connected with the exhaust outlet of casing with reducing airduct 21 by exhaust blower airduct 23 successively, and wherein, reducing airduct 21 and exhaust blower airduct 23 all have solvent-proof performance.
In order to ensure the normal use of reducing airduct 21, be also provided with auxiliary frame on the right side of casing, for fixing reducing airduct 21.Concrete one end of reducing airduct 21 is fixed on exhaust outlet as shown in figures 1 and 3, and the other end is fixed on the auxiliary frame on right side by groined type framework 3.In addition, auxiliary frame is also provided with panel 6, thus forms the enclosure space of a protection reducing airduct 21.
The middle level framework 20 of casing internal is also provided with middle level dividing plate, middle level dividing plate extends to the brace summer 10 of casing internal to the right from the position between upper left side plate 8 and lower side 9, also namely extend to the position between the first isolation air channel 15 and the second isolation air channel 18, thus the left field of casing internal is divided into the new wind space of the air-supply space on upper strata and lower floor.The new wind passage of new wind space, the new wind passage of the second heat exchanger 13 inside, space between the new wind outlet air surface of the second heat exchanger 13 and the new wind inlet air face of the first heat exchanger 12, the first heat exchanger 12 inside and air-supply space together form the air-supply passage that casing internal extends from fresh wind port to air outlet 40.In order to improve the air quality of new wind, near fresh wind port, be provided with new wind filter 30.
As shown in Figure 3, in order to improve initial temperature when new wind and return air heat exchange, spiral heater 32 is also provided with in new wind space, the water inlet of spiral heater 32 is connected by the drainpipe of pipeline with two water-collecting trays be arranged on bottom the second heat exchanger 13, thus the high-temperature water of condensation after Steam Heating in residual neat recovering system is passed into this spiral heater, make new wind through spiral heater 32 after preheating, the used heat of discharging with printing equipment again carries out heat exchange, at utmost can improve the temperature of new wind, be directly used in printing drier to use, realize maximum energy-saving effect.
In this waste heat recovery ventilator, in order to collect the condensed water that in heat exchanging process, air exhaust passage produces, the bottom in the 3rd isolation air channel 19 is also provided with osculum, thus condensed water is flow in the water-collecting tray be arranged on chassis base from osculum, and enter spiral heater 32 from the right side drainpipe shown in Fig. 3.The bottom corresponding to the second heat exchanger 13 in new wind space is also provided with water-collecting tray, for collecting the condensed water in air-supply passage, and is sent in spiral heater 32 by the drainpipe in left side in Fig. 3 by condensed water.
In this waste heat recovery ventilator, breeze fan 37 is arranged in air-supply space, and breeze fan 37 adopts without volute casing centrifugal blower fan, by the motor of breeze fan 37 is arranged on casing outside, can meet resistant to elevated temperatures demand.
As shown in Figure 4, return air inlet 11 enters the return air of air exhaust passage after the first heat exchanger 12 and the second heat exchanger 13 carry out twice heat exchange with new wind, discharges from exhaust outlet through exhaust fan 22.And new wind enters from fresh wind port, and heat through water coil pipe heater 32, then successively after the second heat exchanger 13 and the first heat exchanger 12 exchange with return air heat, under the effect of breeze fan 37, be admitted to printing drier inside.
As can be seen from Figure 5, be the high-temperature gas of temperature between 80 ~ 120 DEG C due to return air and comprise multi-solvents in return air, at the casing internal of waste heat recovery ventilator, define the high-temperature region (region see on dotted line in Fig. 5) concentrating on top and the solvent district comprising whole air exhaust passage (regions see in Fig. 5 between two solid lines).Wherein, the region between the first heat exchanger 12 and return air inlet 11 is high-temperature region and solvent district simultaneously, and therefore, the thermal insulation separation being arranged on this position needs to meet the performance of insulation, explosion-proof and solvent resistant corrosion simultaneously from air channel 14; And the position at other three isolation places, air channel, because the return air temperature after the first heat exchanger 12 heat exchange is lower than 80 DEG C, therefore three isolation air channels only need to meet common insulation demand ensureing corrosion resistant while.
Specifically, in this waste heat recovery ventilator, use following measure to meet the insulation of machine, explosion-proof and anti-solvent corrosion demand.This waste heat recovery ventilator adopts double-decker, and the panel be wherein arranged on Casing frame adopts two-sided foamed board, for reaching basic insulation demand; And be provided with thermal insulation separation in unit inside from air channel 14 and three isolation air channels, for forming the air exhaust passage of seal isolation with the first heat exchanger 12 and the second heat exchanger 13, for the solvent-laden return air of management and control bag, reach the object of solvent resistant corrosion; Thus avoid anti-corrosion treatment is carried out to the panel of whole unit.In addition, based on the temperature entering return air inlet higher (generally higher than 80 DEG C), between return air inlet and the first heat exchanger, the thermal insulation separation of isolation air channel+high temperature resistant industrial heat preservation cotton structure is employed from air channel 14.Because the return air temperature after first time heat exchange is lower than 80 DEG C, heat-preservation cotton can be omitted arrange in the endothecium structure in isolation air channel 15,18 and 19.Based on above-mentioned process, this waste heat recovery ventilator can meet the requirement of insulation, the corrosion of explosion-proof and solvent resistant.
Below in conjunction with the structure shown in Fig. 6 to Fig. 6 C, the structure of thermal insulation separation from air channel 14 in this waste heat recovery ventilator and the set-up mode at casing internal thereof are introduced.Wherein, heat exchanger 12 is arranged on the brace summer 100 of framework by movement slideway 120, is provided with collet 103 and sealing heat insulating strip 105 between movement slideway 120 and brace summer 100.The panel 102 of casing adopts two-sided foamed board.Isolation air channel fixed support 142 is arranged on movement slideway 120, and thermal insulation separation is arranged between the first heat exchanger 12 and return air inlet 11 from air channel 14 by isolation air channel fixed support 142.It is leg-of-mutton isolation air channel that thermal insulation separation forms cross section from air channel 14 by epipleural, front side board and back side panel, and the outside of its all side plate 141 is provided with heat-preservation cotton 140.Further, at thermal insulation separation from being provided with sealing heat insulating strip 105 between air channel 14 and return air inlet 11, thus ensure that return air cannot enter thermal insulation separation from the region 108 outside air channel 14.At thermal insulation separation from arranging sealing heat insulating strip 105 between air channel 14 and the first heat exchanger 12 return air air intake surface, at thermal insulation separation from arranging sealing heat insulating strip 105 between air channel 14 and return air inlet 11.
When mounted, first the first heat exchanger 12 is arranged on casing internal by movement slideway 120, then thermal insulation separation is arranged between the first heat exchanger 12 and return air inlet 11 from air channel 14 by isolation air channel fixed support 142, and at thermal insulation separation from arranging sealing heat insulating strip 105 between air channel 14 and return air inlet 11, at thermal insulation separation from arranging sealing heat insulating strip 105 between air channel 14 and the first heat exchanger 12.The installation process in the installation process of the second heat exchanger 13 and the 3rd isolation air channel 19 is similar with it, describes in detail no longer one by one at this.
Below by Fig. 7, the first isolation air channel 15 and second in this waste heat recovery ventilator is isolated the structure in air channel 18 and is introduced in the installation process of casing internal.First isolation air channel 15 and the second isolation air channel 18 only comprise the isolation air channel be made up of multiple side plate, for controlling the flow direction of return air, do not arrange heat-preservation cotton in the outside of side plate.Right part in the figure 7 shows the first isolation air channel 15 with the form of enlarged drawing and arranges structure between the first heat exchanger 12 and middle level framework 20 by the first isolation air channel fixed support 150.Second isolation air channel 18 is identical with the first isolation air channel 15, is arranged between middle level framework 20 and the return air air intake surface of the second heat exchanger 13 equally by isolation air channel fixed support.Between the first isolation air channel 15 and the second isolation air channel 18, be also provided with isolation airduct 16 and isolation airduct 17, and be provided with sealing heat insulating strip 105 between isolation airduct 16 and isolation airduct 17.
In existing waste heat recovery ventilator, in order to ensure the heat exchanger effectiveness of movement and meet insulation, explosion-proof and solvent resistant corrosion requirement, generally need to carry out isothermal holding, technological processing for explosion protection feature and corrosion-resistance treatment to whole casing.At waste heat recovery ventilator provided by the invention, by arranging thermal insulation separation at casing internal from air channel and isolation air channel, under the prerequisite ensureing whole device security, the heat recovery rate of return air can be improved, avoid and expensive special isothermal holding and corrosion-resistance treatment are carried out to whole casing.
In this waste heat recovery ventilator, by thermal insulation separation from air channel 14, three isolation air channels, the return air channel of the first heat exchanger 12 and the return air channels of the second heat exchanger 13, airtight air exhaust passage is constituted at casing internal, and, by arranging heat-preservation cotton at thermal insulation separation in air channel 14, isothermal holding being carried out to the high-temperature gas entering return air inlet, making whole machine have higher heat recovery rate.As shown in Figure 8, in this waste heat recovery ventilator, the return air of temperature between 80-120 DEG C can be reduced to less than 70 DEG C in temperature after the first heat exchanger 12 and the second heat exchanger 13, and after temperature heats by spiral heater lower than the new wind of 40 DEG C, with the initial temperature lower than 70 DEG C after the second heat exchanger 13 and the first heat exchanger 12, final temperature of supplying gas can close to 100 DEG C.
In addition, in air-supply passage, by setting dish pipe heater, the new wind entering new wind passage is heated in advance, the air exchanged with return air heat can be made to have higher initial temperature, thus ensure that the heat exchanger effectiveness of twice heat exchange, and ensure that the wind pushing temperature of the new wind sending into printing drier.In this waste heat recovery ventilator, by the high-temperature water of condensation after Steam Heating in residual neat recovering system is passed into this spiral heater, make new wind through spiral heater after preheating, the used heat of discharging with printing equipment again carries out heat exchange, at utmost can improve the temperature of new wind, be directly used in printing drier to use, realize maximum energy-saving effect.
As shown in Figure 8, in order to ensure that new wind has suitable wind pushing temperature, in this waste heat recovery ventilator, also temperature sensor is provided with respectively near fresh wind port, return air inlet, exhaust outlet and air outlet, and, the temperature sensor for detecting the initial temperature of the new wind starting heat exchange is provided with, for monitoring the operation conditions of entire machine in actual moving process between spiral heater and the second heat exchanger.In this waste heat recovery ventilator, near the first heat exchanger 12, second heat exchanger 13, spiral heater and new wind filter, be also provided with pressure difference switch respectively, for carrying out monitor and forecast to the blast ruuning situation of waste heat recovery ventilator.Wherein, the pressure difference switch be arranged near the first heat exchanger 12 and the second heat exchanger 13 is respectively used to monitor the blast in air exhaust passage and air-supply passage.
Above the principle of the structure of waste heat recovery ventilator provided by the invention, heat exchange principle and explosion-proof, insulation thereof and solvent resistant corrosion is introduced.From the above, the new wind of normal temperature can be heated to 100 DEG C by this waste heat recovery ventilator, and what make it directly meet printing drier uses gas demand, and, this waste heat recovery ventilator has higher heat recovery rate, and the equivalent waste gas that can be used for 80-120 DEG C carries out recuperation of heat.Therefore, above-mentioned waste heat recovery ventilator, can be used for carrying out recuperation of heat to all drying bakers of multicolor intaglio press or the waste gas of compounding machine, and can carry out air feed to all drying bakers simultaneously.
Above waste heat recovery ventilator provided by the present invention is described in detail.To those skilled in the art, to any apparent change that it does under the prerequisite not deviating from connotation of the present invention, all the protection domain of patent right of the present invention will be belonged to.
Claims (10)
1. a waste heat recovery ventilator, is characterized in that:
The casing of described waste heat recovery ventilator comprises base, the framework be fixed on described base, and fixing multiple panels on said frame, wherein, upper left side plate offers air outlet, lower side offers fresh wind port, upper right side plate offers return air inlet, bottom right side plate offers exhaust outlet;
In the side of described casing internal near described return air inlet, vertically be provided with two heat exchangers, be respectively the first heat exchanger and the second heat exchanger, the cross aisle that described first heat exchanger and described second heat exchanger to have from upper left downward-extension to the right respectively and extend to left down from upper right;
Thermal insulation separation is provided with from air channel between the return air air intake surface and described return air inlet of described first heat exchanger, between the return air outlet air surface and the return air air intake surface of described second heat exchanger of described first heat exchanger, be provided with the first isolation air channel and the second isolation air channel, between the return air outlet air surface and described exhaust outlet of described second heat exchanger, be provided with the 3rd isolation air channel.
2. waste heat recovery ventilator as claimed in claim 1, is characterized in that:
Described thermal insulation separation is leg-of-mutton air channel from air channel and three isolation Jun Shi cross sections, air channel;
Described isolation air channel comprises triangle body framework, the side at a right-angle side place of described triangle body framework is provided with rectangular slab, and at two end faces, triangular plate being set respectively, the described side at triangle body framework another one right-angle side place and the side at hypotenuse place form air intake surface and the outlet air surface in isolation air channel respectively;
Described thermal insulation separation refers to that from air channel the isolation air channel of insulation material is set up in the outside at described rectangular slab and described triangular plate.
3. waste heat recovery ventilator as claimed in claim 1, is characterized in that:
Sealing heat insulating strip is provided with between air channel and the return air air intake surface of described first heat exchanger at described thermal insulation separation; Sealing heat insulating strip is provided with between described first isolation air channel and the return air outlet air surface of described first heat exchanger; Sealing heat insulating strip is provided with between described isolation air channel and the return air air intake surface of described second heat exchanger; Sealing heat insulating strip is provided with between described 3rd isolation air channel and the return air outlet air surface of described second heat exchanger.
4. waste heat recovery ventilator as claimed in claim 1, is characterized in that:
Between described first isolation air channel and described second isolation air channel, be provided with two isolation airducts and sealing heat insulating strip, described sealing heat insulating strip is arranged between two isolation airducts.
5. waste heat recovery ventilator as claimed in claim 1, is characterized in that:
The bottom in described 3rd isolation air channel is provided with osculum.
6. waste heat recovery ventilator as claimed in claim 1, is characterized in that:
The middle level framework of described casing is also provided with middle level dividing plate, and the left field of described casing internal is divided into the new wind space of the air-supply space on upper strata and lower floor by described middle level dividing plate.
7. waste heat recovery ventilator as claimed in claim 6, is characterized in that:
Spiral heater is had at described new wind spatial placement;
The bottom of described second heat exchanger is provided with water-collecting tray, and the drainpipe of described water-collecting tray is connected to the water inlet of described spiral heater by pipeline.
8. waste heat recovery ventilator as claimed in claim 6, is characterized in that:
In described air-supply space, be provided with breeze fan, described breeze fan adopts without volute casing centrifugal blower fan, and the motor of described breeze fan is arranged on described casing outside.
9. waste heat recovery ventilator as claimed in claim 1, is characterized in that:
Exhaust fan adopts external mode to be arranged on the outside of described casing, and described exhaust fan is band spiral case list air intake centrifugal blower fan; The air inlet of described exhaust fan is connected with described exhaust outlet with reducing airduct by exhaust blower airduct successively.
10. waste heat recovery ventilator as claimed in claim 1, is characterized in that:
Fixing all panels are on said frame all two sides foamed boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729306.5A CN105150679B (en) | 2015-10-30 | 2015-10-30 | Machine waste heat recovery |
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| CN201510729306.5A CN105150679B (en) | 2015-10-30 | 2015-10-30 | Machine waste heat recovery |
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| CN105150679A true CN105150679A (en) | 2015-12-16 |
| CN105150679B CN105150679B (en) | 2018-05-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856834A (en) * | 2016-06-03 | 2016-08-17 | 江阴市汇通包装机械有限公司 | Printing machine drying device |
| CN105856833A (en) * | 2016-05-31 | 2016-08-17 | 江阴市汇通包装机械有限公司 | Double-inlet double-outlet air supply device |
| CN106524775A (en) * | 2016-12-27 | 2017-03-22 | 江苏宜达新材料科技股份有限公司 | Heat recovery unit for glass melting furnace |
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| CN105856834A (en) * | 2016-06-03 | 2016-08-17 | 江阴市汇通包装机械有限公司 | Printing machine drying device |
| CN106524775A (en) * | 2016-12-27 | 2017-03-22 | 江苏宜达新材料科技股份有限公司 | Heat recovery unit for glass melting furnace |
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|---|---|
| CN105150679B (en) | 2018-05-08 |
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