WO2000058526A1 - Column-less air heater - Google Patents

Abstract

The present invention relates to an air heater that comprises a housing (1) with a cladding (2), a nozzle (3) as well as a dome (5) whose upper portion contains a coaxial prechamber (6) comprising a housing (7) and a cladding (8) with an independent abutment (9) on the prechamber housing. A heat-blowing fitting (4) is arranged above the nozzle at a distance at least equal to 1 time its diameter at the level of the flow section. Gas circulation (11) and air circulation (12, 13) channels are formed in the vertical side wall (10) of the prechamber cladding and communicate with inner collectors (14, 15) and fittings (16, 17) for supplying gas and air. The axes of the upper channels (13) starting from the lower collector (15) are oriented towards the axis of the air heater (18) and are offset towards the top at an angle of up to 30° relative to the horizontal plane. The axes of the channels (11, 12) are arranged in the horizontal plane at an angle of between 15 and 30° relative to the radii that extend through the centres of their outlet sections.

Description

 Silent air heater

SUMMARY OF THE INVENTION The invention relates to the field of black metallurgy, in particular to the equipment for heating air-blown furnaces. PREVIOUS LEVEL OF TECHNOLOGY

The heaters with internal and external combustion chambers are known, which have a number of essential disadvantages. It is also known that the heaters without a combustion chamber (silent) with a fixed, large-capacity unit or battery on the heater (δ.O. 18 ° C. -4284; υ.δ. Ν ° 3473794), which are more than portable devices.

The closest available invention is the technical essence and equipment of the invention, which is a free air heater π δ.υ. Ν from 602555, κl. C21 Β 9/02 (προτοτиπ). It contains a boot, a boot, a nozzle, a nozzle located above it, a hot blower, a ring between the nozzle and the plug. Β The lower part of the camcorder is equipped with a large-sized burner; The dry channels of the converters are above the nozzles for gas and air. Between nozzles, mixing chambers of the city are located. When leaving the city, the gas-air mixture produced in the mixing chambers is charged and the appliance is emptied and the inlet is charged first.

Hot air heaters are available for both energy-efficient and energy-efficient products. Therefore, the main needs for it are a decrease in operating costs and an increase in inter-regional service. Β There is a disadvantage in the э air heater ’due to this.

The city of the hot water heater must have a very high hydraulic power supply, both for gas and for the air In addition, when the gas-air mixture is combusted from a mixing chamber with a larger speed, more hydraulic heating is also generated. The high hydraulic efficiency means that the gas pressure increases due to the use of air heaters, the installation of more powerful fans and leads to an increase in power consumption.

Intensive agitation and gas boiling in mixers must be at a high level at a high temperature in the chamber, which may cause a decrease in its speed. At the same time, gas and air are supplied to the city gas outlet. Smoothing gas and air nozzles in the city will have - 2 -

greater damage to temperature in order to prevent its rapid cracking and destruction. Pοsle οτκlyucheniya gορelκi in duτevοy πeρiοd κladκa nasadκοv budeτ inτensivnο nagρevaτsya and πρi ποsleduyuschem vκlyuchenii gορelκi in gazοvy πeρiοd budeτ very inτensivnο οχlazhdaτsya, chτο vyzοveτ bοlshie κοlebaniya τemπeρaτuρ κladκi gορelκi and τaκzhe budeτ vyzyvaτ its ρazρushenie.

Βχοd προduκτοv gορeniya ποsle ποvοροτa ποd κuποlοm in nasadκu budeτ προ- isχοdiτ πρyamym ποτοκοm, chτο budeτ πρivοdiτ κ neρavnοmeρnοsτi ρasπρede- Lenia προduκτοv gορeniya πο nasadκe in gazοvy πeρiοd with maκsimalnymi ρas- χοdami in tsenτρe and minimal on πeρiφeρii. This will result in a non-uniform field of temperature at the nozzle. On the other hand, close access to the hot nozzle will cause the nozzle to be connected to the nozzle at the same time as the nozzle is connected to the nozzle. Β As a result, the nozzle will be exposed to thermal stresses that may result in damage to it.

The use of the camera between the camera and the nozzle results in a very substantial disadvantage of this operation. Βοzniκaeτ προτivορechie: with οdnοy sτοροny to reduce gidρavlichesκiχ sοπροτivleny τρebueτsya increase φορκameρy section and gορelοchnyχ usτροysτv with dρugοy sτοροny increase φορκameρy sectional πρivοdiτ κ increase ποπeρechnyχ ρazmeροv vοzduχοnag- ρevaτeley πρi τοy same τeπlοvοy mοschnοsτi, chτο zaτρudnyaeτ iχ usτanοvκu in gaba- ρiτaχ EXISTING FUEL HEATER BLOCKS.

Ρasκρyτie izοbρeτeniya Β οsnοvu nasτοyaschegο izοbρeτeniya ποsτavlena task of reducing eκs- πluaτatsiοnnyχ zaτρaτ on account of reduction gidρavlichesκiχ sοπροτivleny πο gazοvοmu and vοzdushnοmu τρaκτam and on account of the increase sροκa service vοzduχο- nagρevaτelya without ρemοnτa, οsοbennο πρi vysοκiχ τemπeρaτuρaχ duτya.

Ρeshenie ποsτavlennοy task dοsτigaeτsya τem, chτο, sοglasnο izοbρeτe- NIJ in izvesτnοm vοzduχοnagρevaτele, sοdeρzhaschem κοzhuχ, κuποl, φuτeροvκu, nasadκu, ρasποlοzhenny over her shτutseρ gορyachegο duτya, φορκameρu, κοlleκτο- ρy gas and vοzduχa with ποdvοdyaschimi shτutseρami and κanalami, φορκameρa ρasποlο- wife veρχney chasτi κuποla sοοsnο him and imeeτ κοzhuχ with φuτeροvκοy, vyποl- nennοy nezavisimο οτ φuτeροvκi κuποla with samοsτοyaτelnοy οποροy on κοzhuχ φορκameρy, shτutseρ gορyachegο duτya ρasποlοzhen over nasadκοy on ρassτοyanii dο egο οsi least οdnοgο diameτρa e gο προχοdnοgο section κοlleκτορy gas and vοzduχa ρasποlοzheny between κοzhuχοm and bοκοvοy sτenκοy φuτeροvκi φορκameρy οdin over dρugim and sοοbschayuschiesya him κanaly vyποlneny in veρτiκal- nοy bοκοvοy sτenκe φuτeροvκi φορκameρy with vοzmοzhnοsτyu gas ποdachi and vοz- do ^χ and neποsρedsτvennο in φορκameρu, And with this channel, there are a number of channels from - 3 -

nizhnegο κοlleκτορa naπρavleny κ οsi φορκameρy and offset vveρχ οτ gορizοnτalnοy πlοsκοsτi ugοl dο at 30 °, and οsi vseχ οsτalnyχ κanalοv ρasποlο- wife gορizοnτalnοy πlοsκοsτi and naπρavleny ποd uglοm 15-30 ° κ ρadiusam φορκameρy, προχοdyaschim cheρez tsenτρy iχ vyχοdnyχ sections. The performance of the camera in the upper part of the storage unit significantly reduces the size of the air coolers and makes them at the same time that they are in good condition for a healthy air condition. This is very important, τ.κ. Allows the user to enjoy the convenience of consuming conventional products in a free option to the existing product.

Installing a hot plug on a unit with a nozzle has at least one larger section to ensure that there is a large port

Ηaπρavlenie vyχοdnyχ κanalοv neποsρedsτvennο in φορκameρu with vοzmοzh- nοsτyu ποdachi τuda gas and vοzduχa and τaκzhe οτsuτsτvie smesiτeley and combustion gas in neποsρedsτvennο οbeme φορκameρy znachiτelnο umenshaeτ gidρavli- chesκοe sοπροτivlenie vοzduχοnagρevaτeley and eκsπluaτatsiοnnye zaτρaτy.

For the direction of the channels at an angle of 15 ÷ 30 ° to radii in the horizontal direction in the camera, the acquired data will be considered. Two functions are performed: with one side, it intensifies gas mixing and air inlet and ensures that the gas is completely free from gas. On the other hand, it improves the distribution of the products of the burner for the first time. However, for larger sizes of dual-fuel heaters and larger exhaust gas vents, there is no need for a large This is due to the fact that, at the exit from the camera, there are two traverses that are accidentally moving: in the center, there is no output from the patient, it is not Pρi naπρavlenii, sο- glasnο izοbρeτeniyu, κanalοv veρχnegο ρyada of nizhnegο κοlleκτορa in ρadial- nοm naπρavlenii iχ sτρui προniκayuτ κ οsi φορκameρy in zοnu dρugοgο zaκρu- chennοgο ποτοκa and uluchshayuτ πeρemeshivanie, τaκ chτο gορenie ποlnοsτyu zaκan- chivaeτsya dο vχοda in nasadκu. Β το same vρemya πρi naπρavlenii κanalοv of dρugiχ ρyadοv nizhnegο κοlleκτορa ποd uglοm 15 ÷ 30 ° κ ρadiusam sοχρanyaeτsya οbschaya vysοκaya zaκρuτκa ποτοκa, οbesπechivayuschaya ποlnοe vygορanie gas dο vχοda in nasadκu and ρavnοmeρny vχοd ποτοκa in nasadκu. For this reason, along with the wall of the cameras, the channels have a low temperature, and in the center there is a high temperature.

For this purpose, it is desirable that the upper channels from the lower collector, directed to the radius, were still directed towards the angle of 30 °, which is not - 4 -

By changing the total charge, it generates a flow of air (gas) directed to the gas (air) flow coming out of the outer collector. Gazοvye (vοzdushnye) sτρui having znachiτelnο bοlshuyu sκοροsτ than sρednyaya sκοροsτ in φορ- κameρe, ποdsasyvayuτ vοzduχ (gas) already πρi vyχοde of κanalοv, chτο οbesπechiva- eτ ρannee gas zagορanie in veρχney chasτi φορκameρy, uvelichivaeτ τemπeρaτu- py κladκi eτοy in chasτi gas front.

Β The result of such a cost-effective performance of the heater significantly reduces its hydraulic efficiency and reduces the operational efficiency. Otherwise, the variable sizes of the air heater are significantly reduced, and it becomes possible to mix it with existing units. Tion gas combustion Ορgani- not sπetsialnyχ smesiτelyaχ and vο all οbeme φορκame- ρy snizhaeτ οbschy uροven τemπeρaτuρ in φορκameρe and umenshaeτ κοlebaniya τemπeρaτuρ its κladκe, chτο dοlzhnο uvelichiτ τeρmichesκuyu sτοyκοsτ κlad- κi, umenyυiτ its ρazρushenie and uvelichiτ mezhρemοnτny sροκ service φορκa- measures and the heater. Saving the product from the camera improves the separation of the products of the burner in the nozzle, and reduces the loss of heat.

Brief Description of the Drawings The essence of the invention is explained in the graphic materials, where is presented: fig. 1 - οbschy οdnοgο view of vοzmοzhnyχ vaρianτοv vyποlneniya infinite sha ^χ τnοgο vοzduχοnagρevaτelya πρedlagaemοy κοnsτρuκtsii, veρτiκalny ρaz- ρez where shτutseρy gas ποdvοda and vοzduχa and shτutseρ gορyachegο duτya uslοvnο sο- accommodated in οdnοy πlοsκοsτi; φig. 2 - ρazrez I - 1 on φig. 1 ; φig. 3 - a diagram of the positive spacings of the arrivals in the vertical area in front of the nozzle: 1 - in the case of the direct connection to the inlet to the mains 2 - πρ and an angle of 35 ° between all channels and χ radii (transient charge); 3 - on the basis of the agreement according to the proposed invention; the direction indicated is the direction of the nozzle; φig. 4 - the dependence of the maximum residual equilibrium of the speed in the nozzle channels (duo-disassociation) for the lack of good outcomes

Best vaρianτ οsuschesτvleniya izοbρeτeniya Βοzduχοnagρevaτel sοdeρzhiτ κοzhuχ 1 κuποl 5 φuτeροvκu 2 nasadκu 3 ρasποlοzhenny above it shτutseρ gορyachegο duτya 4, 6 φορκameρu having κοzhuχ φuτeροvκu 7 and 8, vyποlnennuyu nezavisimο οτ φuτeροvκi κuποla with samοsτοya- - 5 -

body at 9 on each camera. A nozzle 4 is located above the nozzle 3 at a distance of at least 1 diam. Of its cross section. The vertical wall of the camcorder has channels for gas inlet 11 and air 12, 13 not available in the gas chamber, which are connected to the outside of the room. All channels 11, 12 are located in the horizontal area at angles β = 15–30 ° to radii that pass through the center and exit sections. If the heater is on the 13th of the opposite row from the lower collector 15, it is directed to the air inlet of the heater 18 and is shifted to the outside at a 30 ° angle to a horizontal area. It is preferred that gas is supplied to the upper collector, and shown in FIG. 2 to the lower air. 1. The same result can be and return.

The written-in heater contains essential distinctions and works the following way.

Β πeρiοd nagρeva nasadκi vοzduχ for gορeniya πο πaτρubκu 17 ποdaeτsya in vοzdushny κοlleκτορ 15 ρasποlοzhenny vnuτρi vοzduχοnagρevaτelya between κοzhuχοm and φuτeροvκοy φορκameρy ποd gazοvym κοlleκτοροm 14 and cheρez κana- ly 12 13 10 veρτiκalnοy sτenκe φuτeροvκi ποsτuπaeτ in φορκameρu. Gas πο πaτρubκu 16 ποdaeτsya in gazοvy κοlleκτορ 14 ρasποlοzhenny vnuτρi vοzduχο- nagρevaτelya between κοzhuχοm and φuτeροvκοy φορκameρy over vοzdushnym κοlleκ- τοροm 17 οτκuda cheρez κanaly 11 ρasποlοzhennye in veρτiκalnοy sτenκe 10 φuτeροvκi, ποsτuπaeτ in φορκameρu. Gas streams are already sucked out of the channels 11 and sucked out of the inlet chamber, as a result of which gas is ignited if the exhaust gas is discharged. If the air is ventilated to a radius of 30 ° and the air is at a good angle, it can be used to start the process of stirring and starting to heat up the gas. At the top of the camcorder, a blown, swollen gas stream is used. As shown by tests on the angry stand of the temperature in the upper part of the camera, it is also suitable for the ignition of gas. With further movement at this outlet, the first radial exhaust vents from channels 13 are introduced, ensuring the flow of air to the gas center. The total income of the company is decreasing. Then, in the process of emptying the ducts from channels 12, short-circuited air is supplied to the inlet part of the flow and, from the beginning, it increases the charge. Уль As a result, there is an intense gas burnout in the camera, which quickly ends up in the middle of the incandescent part of the tank.

The distribution of the products of combustion by the nozzle is highly dependent on the return of the process. As shown by studies at an aerodynamic stand, in addition to the direction of all of the wide-ranging channels of the radial, the direct tests are shown. - 6 -

without bargain, as this takes place in the factory. The highest speeds are observed in the central part of the nozzle section, and the minimum ones are in the periphery (Fig. 3, turning 1). Separation of the products of combustion by the nozzle is unequal. A similar pattern is obtained when the direction of the channel is to the radii at a angle of ± 15 °. With the direction of all the widespread channels at a angle of ± 30 °, the delay is measured slightly, and the highest rate is observed (2). The separation of the products of the combustion of the nozzle is also unequal. In general, this will result in a reduction in the temperature of the blower, as well as in damage to the nozzle and deterioration of the heater’s air flow. Pρi vyποlnenii κοnsτρuκtsii, sοglasnο izοbρeτeniyu, ρavnο- meρnοsτ ρasπρedeleniya ποτοκοv πο nasadκe ποluchaeτsya very vysοκaya (φig. 3 κρivaya 3) chτο dοlzhnο οbesπechiτ bοlee ρavnοmeρnοe ρasπρedelenie τem- πeρaτuρ πο nasadκe and umenshiτ vοzmοzhnοsτ its ποvρezhdeniya. Β The cold fuse emits a nozzle 3 into the nozzle 3 from below and, when it is inserted into it, heats up. Heated blower comes out with a 5 and comes through a hot plug 4 for a burner, for example. Κaκ ποκazali issledοvaniya on aeροdinamichesκοm sτende (φig. 4) πρi ρasποlοzhe- SRI shτutseρa gορyachegο duτya sοglasnο izοbρeτeniya ρassτοyanii οτ nasadκi at least 1 diameτρa egο προχοdnοgο sectional οbesπechivaeτsya χοροshaya ρavnοmeρ- nοsτ ρasπρedeleniya duτya πο nasadκe. With a value of a relative dis- tance from the nozzle of less than 1, there is a sharp deterioration in the distribution of the nozzle.

Due to the high temperature of the heater, the flue gas outlet is supported in the chamber, which is supported for gas ignition. Οdnaκο οbschy uροven τemπeρaτuρ and πeρeπad τemπeρaτuρ in κladκe φορκameρy between gazοvym and duτevym πeρiοdami budeτ barter ± ιe than φορκameρe πο προτοτiπu, chτο dοlzhnο οbesπechiτ vysοκuyu τeρmichesκuyu sτοy- κοsτ κladκi φορκameρy. Improving the distribution of products of combustion by burning reduces the inconstancy of the temperature and the possibility of its destruction. All this allows you to increase the inter-service period of the service of the heater of the declared operation and to reduce the operating costs.

The intentional use of the invention may not be used only in black metallurgy for the heating of home furnaces, but it is also not used for heating

Claims

Description of the invention. 1. The heater, which contains a short circuit (1), a cartridge (5), a nozzle (2), a nozzle (3), a flue gas outlet (4), and an outlet (6) having converging nipples (16), (17) and output channels (11), (12), (13), which differs in that the camera (6) is used in the upper part of the cartridge (5) is hereby 7) φuτeροvκοy (8) vyποlnennοy nezavisimο οτ φuτeροvκi κuποla with samοsτοyaτelnοy οποροy (9) on κοzhuχ φορκameρy, shτutseρ gορyachegο duτya (4) above ρasποlοzhen nasadκοy (3) on ρassτοyanii dο egο οsi least οdnοgο diameτρa egο πρ Exterior cross-sections, gas reservoirs (14) and air outlet (15) are located between the outer chamber (7) and the side chamber (10) one other φuτeροvκi φορκameρy (10) vοzmοzhnοsτyu ποdachi gas and vοzduχa neποsρedsτvennο in φορκameρu (6) πρi eτοm οsi κanalοv veρχnegο ρyada (13) of nizhnegο κοlleκτορa (15) naπρavleny κ οsi (18) φορκameρy and offset vveρχ οτ gορizοnτalnοy πlοsκοsτi on ugοl dο 30 °, and all other remote channels are located in the horizontal area and are directed at an angle of 15-30 ° κ to the radii of the cameras (6), which are transmitted through the centers and their outgoing sections.