CN106382746A - Fuel gas mold temperature controller - Google Patents

Abstract

The invention discloses a fuel gas mold temperature controller. The fuel gas mold temperature controller comprises a rack and a heat conduction oil furnace. A smoke heat recoverer is arranged on the rack which is above the heat conduction oil furnace. One end of the smoke heat recoverer is connected with a smoke chamber and a smoke guiding-in chamber in a sealed mode, and a smoke reversing chamber is arranged at the other end of the smoke heat recoverer in a sealed mode. A plurality of thread smoke tubes are arranged in the smoke heat recoverer in parallel. An oil-gas separation tank and an oil overflowing tank are arranged on the rack which is above the heat conduction oil furnace. The oil-gas separation tank is located below the oil overflowing tank. The oil-gas separation tank is communicated with a coiled tube through an oil outlet tube, the oil outlet tube is arranged on one side of the oil-gas separation tank, a separation tank oil outlet tube is arranged on the other side of the oil-gas separation tank, and the oil-gas separation tank is communicated with the oil overflowing tank. The rack is further provided with an oil temperature control device. The fuel gas mold temperature controller has the benefits that the smoke heat conversion efficiency is good, oil-gas separation is sufficient and thorough, and the oil temperature control is stable and high in precision.

Description

Combustion gas die heater

Technical field

The present invention relates to a kind of combustion gas die heater, the more particularly, to improvement to this combustion gas die heater structure.

Background technology

, as a kind of equipment changing by heat energy to heating equipment offer energy, it is in the industrial production for die heater It is used widely.Die heater is reduce the high-temperature flue-gas discharged from its combustor, makes up to discharge standard, lead to It is often to import high-temperature flue gas flue gas heat can be carried out absorb in the heat recoverer recycling；And by by gas molten in deep fat Body is discharged from fluid, it is to avoid molten gas the fluid in pipeline is formed with unbalanced pressure, produce pressure oscillation, cause fuel-displaced Pressure instability, deep fat flow velocity is unbalance, leads to the temperature of the equipment of being heated fluctuation, so that the job stability of the equipment of being heated is deteriorated Phenomenon, is both provided with gs-oil separator on fuselage；

In addition it is to ensure that conduction oil can be heated to heating equipment with stationary temperature, then the temperature fluctuation of conduction oil just must control In rational scope, it is also requisite for this reliable and stable system that conduction oil oil temperature is controlled.Pin To above-mentioned main points, existing machine is all provided with corresponding device or system, but because the reason technology or other side its Practical effect is unsatisfactory, traces it to its cause, and one is radiating tube used in high-temperature flue gas heat recoverer used on existing machine For the common steel tube of inner wall smooth, then flue gas does not substantially have flow resistance in Bottomhole pressure, and flue gas is relatively fast in velocity in pipes, makes One-tenth flue gas is too short with the heat exchanger time of heated medium, and heat exchange is insufficient, still has amount of heat with flue gas together in flue gas It is discharged to air, heat recycles assimilation effect not good, after flue gas long-time flowing in pipe, flue dust is inevitably in pipe Cylindrical dirty layer is produced on sub- inwall, this cylindrical dirty layer can be formed inside it in pipe expanded by heating or cooling meat The homogeneous state of stress, adhesive force on tube wall for the cylindrical dirty layer is just relatively strong, is difficult voluntarily to peel off, the radiating of such radiating tube Performance is just affected, thickening in particular with dirty layer, and thermal diffusivity also can become worse and worse, and this also just directly results in The flue-gas temperature discharged eventually is too high, and the high-temperature flue gas not reached in emission request, and existing high-temperature flue gas heat recoverer import Case and low-temperature flue gas are discharged case and are respectively arranged at heated medium case two ends, then flue gas imports case by high-temperature flue gas and imports after radiating tube Just directly discharge case from low-temperature flue gas to discharge, flue gas radiating stroke is suitable with radiating length of tube, and the radiating time is shorter, is unfavorable for cigarette The abundant exchange of gas heat, in addition in heated medium case, importing the medium in case by medium ingress pipe is by medium discharge duct It is expelled directly out, be so in itself heat exchanger time and between radiating tube of heated medium in heated medium case also just relatively Short, heated medium is difficult to be raised to expected temperature value, and this will impact to the normal work of follow-up hot application apparatus；Two are On gs-oil separator used on existing fuselage, the crossed axis angle between its oil inlet pipe axis and flowline axis and tank body central axis is equal Be set to hang down angle, deep fat by oil inlet pipe enter tank body in when, overpressure effect under, its be only capable of with oil inlet pipe mouth of pipe phase Correspond to and form eddy flow on the liquid layer of tank body central axis, be also correspondingly such at flowline, so in oil-feed Just lack on liquid layer between pipe and flowline can make fluid carry out circling round wash away wash away power, this be just unfavorable in deep fat molten Gas forms bubble, also may refrain from the spilling of gas, and formation is overflow, and gas is not thorough, and fuel-displaced oil pressure still can produce certain fluctuation, Correspondingly be heated equipment temperature also can follow fluctuation it is difficult to make the equipment of being heated reach stable working condition；Three is existing machine On device, Oil-temperature control system used is all made up of relay and catalyst, and not only complex structure, wiring are numerous for this control system Lock, and control response speed is slow, control accuracy is low, is difficult to Oil-temperature control in expected range.

Content of the invention

For the deficiencies in the prior art, the technical problem to be solved is to provide a kind of flue gas hot-cast socket effect Good, Oil-gas Separation is fully thorough, the high combustion gas die heater of Oil-temperature control lasting accuracy.

For solving above-mentioned technical problem, the combustion gas die heater of the present invention includes frame, is fixedly installed on the heat conduction in frame Oil oven, in the combustor of described heat-conducting oil furnace, set coil pipe is formed with least inner coil pipe is successively nested together by outer coil pipe, should Outer coil pipe mutually concatenates with each layer inner coil pipe；It is provided with flue gas heat recoverer on methods, rack, this flue gas heat on this heat-conducting oil furnace The connected sealing in withdrawer one end arranges smoke evacuation room and flue gas imports room, and the sealing of this flue gas heat recoverer other end is provided with cigarette Gas commutation room, be arranged in parallel in this flue gas heat recoverer some threaded flues, is provided with spiral shell in this threaded flue endoporus Rotation projection, in this flue gas heat recoverer threadingly smoke pipe axially-spaced be staggeredly equipped with front diaphragm and rear water conservancy diversion every Plate；Catch pot and oil spilling tank are provided with methods, rack on this heat-conducting oil furnace, this catch pot is in below oil spilling tank, should Catch pot leads to setting by flowline and coil pipe, and this flowline is arranged at catch pot side, in catch pot Opposite side is provided with knockout drum flowline, and this flowline axis and catch pot axis crossed axis angle α are 80O～90O, and this separates Tank flowline axis and catch pot axis crossed axis angle β are 80O～90O, and this catch pot is interlinked with oil spilling tank；In machine Oil-temperature control device is additionally provided with frame.

After said structure, due to coil pipe being set to the inner coil pipe that is nested and outer coil pipe, and by inner coil pipe and outer Coil pipe phase concatenate, then the length of coil pipe is increased, then the conduction oil under nominal flow rate flow through coil pipe time just relatively elongated, Conduction oil just can obtain sufficient heat time heating time, and the oil temperature of conduction oil just can obtain and be rapidly heated, and this guarantees to work speed The heat supply of the heating equipment that degree is fast, heat consumption is big, has the heat-conducting oil heating time that can extend, the fast advantage of oil temperature raising speed.Again Due to arranging smoke evacuation room and flue gas importing room in flue gas heat recoverer one end, and cigarette is set in the flue gas heat recoverer other end Gas commutate room, then in flue gas heat recoverer set radiating tube just divide into be connected with room of discharging fume and with flue gas importing room be connected Two parts, and this two parts radiating tube is communicated consecutive and is integrated by flue gas room of commutating, and the radiating to flue gas just becomes as by phase String two pipes carry out, the radiating stroke of flue gas is increased, that is, extend flue gas heat exchanger time it is ensured that flue gas with Sufficient heat exchange can be carried out in case between heated medium, also ensure that the flue gas of final discharge can meet hot driving standard simultaneously, Have that heat exchanger time is long, radiating fully, the good advantage of effect；And make radiating tube with threaded flue, and this threaded flue endoporus In be provided with spiral projection, so compare the light pipe of inner wall smooth, on the one hand its heat transfer area increase 1.7-1.8 times, pipe oneself The heat dispersion of body greatly enhances, and another aspect spiral projection also can produce certain damping to inner tube smoke, has delayed flue gas By the time of pipe, hot-cast socket between flue gas and heated medium is made to become more abundant, another aspect accumulates in spiral projection Its stress direction of crock different, when pipe expands and shrinks, crock under the different stress of the direction just can from Row comes off, and having the advantages that can self cleaning tube wall dirty；And before being provided with flue gas heat recoverer diaphragm and after Diaphragm, and by this front diaphragm and the rear diaphragm threadingly axially staggered interval setting of smoke pipe, so in Jie that is heated In matter case, it is the formation of the medium runner being separated by front diaphragm and rear diaphragm, heated medium flows in this runner When its flowing stroke increased, also just extend flowing time in case for the heated medium it is ensured that heated medium can fully Inhale flue gas heat obtain expected from temperature rise value, equally have that heat exchanger time is long, radiating fully, the good advantage of effect.Due also to By being respectively provided with flowline and knockout drum flowline in Oil-gas Separation tank both sides, and flowline position is set below Knockout drum flowline position, then can be whirled up washing away the guarantee providing in structure for fluid in tank, and pass through will be fuel-displaced Pipe axis and catch pot axis crossed axis angle α are set to 80O～90O, then when deep fat enters catch pot by flowline, just Helical flow can be produced along inner tank wall at an angle, so be on liquid layer between flowline and knockout drum flowline Fluid is just stirred under input pressure effect, and generation is washed away and washed away, and the gas in fluid also just can be produced gas Bubble simultaneously fully overflows, and tank inner fluid can be made to produce flowing and wash away, excessive gas is fully thorough, and advantage rational in infrastructure, equally will divide It is set to 80O～90O from tank flowline axis with catch pot axis crossed axis angle β, also can make the flowline being connected with oil pump In oil suction produce with oil inlet pipe as to oily stirring effect, further enhancing flowing in tank for the fluid and wash away, acceleration The formation of hot bubble in oil it is ensured that in fluid gas abundant spilling.Again due to Oil-temperature control dress being provided with frame Put, higher control accuracy by Oil-temperature control in set point, and can be kept by this oil-temperature control device.

A kind of preferred implementation of the present invention is that described oil-temperature control device includes temperature conditioning unit, with temperature conditioning unit electricity The oil temperature sensor connecting, described temperature conditioning unit is electrically connected on the input terminal of PLC, and the lead-out terminal of this PLC electrically connects The coil of small fire electromagnetic valve and the coil of big fire electromagnetic valve, this small fire electromagnetic valve and big fire electromagnetic valve are connected in parallel in combustion gas master Between valve and combustion gas ingress pipe, this combustion gas ingress pipe leads to and is arranged on burner, this burner leads to and arranges steam and erect Runner and ignition controller and fire defector switch, this fire defector switch is electrically connected with ignition controller, and this combustion gas imports It is provided with baroswitch, this steam erects and is provided with blast switch on runner, and this baroswitch and blast switch all electrically connect on pipe In control circuit；Described small fire electromagnetism valve air gate is connected in series small fire needle-valve, this small fire needle-valve and combustion gas ingress pipe phase Lead to；Described big fire electromagnetism valve air gate is connected in series gas flow valve, and this gas flow valve is communicated with combustion gas ingress pipe Even；Described gas flow valve valve is in transmission connection with valve positioner by connecting rod, and this valve positioner passes through in control system Electrical equipment controlled by PLC；Described oil temperature sensor is two, and this two oil temperature sensors are respectively fuel-displaced oil temperature sensor With oil-feed oil temperature sensor.By arrangement above, combustion gas can be divided into two-way after combustion gas main valve and import combustion gas ingress pipe and enter And enter in burner, make small fire electromagnetic valve and big fire electromagnetic valve equal by control system when thus may be implemented in initial heating Open, allow combustion gas enter combustor with maximum stream flow and conduction oil is quickly heated up to set temperature value, and relief big fire electromagnetic valve This road air inlet is cut off in work, and small fire electromagnetic valve work state is constant, is protected by small fire electromagnetic valve when oil temperature reaches setting temperature Hold heating, to reach, conduction oil is incubated and is delayed with the time of conduction oil temperature drop, this just directly slow down effectively The fluctuation of oil temperature, and when heat conduction oil temperature is down to setting lowest temperature, then weight first opens recovery two-way confession to big fire electromagnetic valve again Gas, makes oil temperature quick-recovery to desired temperature, thus efficiently avoid the continuity of oil temperature fluctuation, can have structure and closing soon again Reason, the stable advantage of Oil-temperature control；By oil temperature sensor can gather oil temperature signal and by it be converted into analog electrical signal import Temperature control module, this analog electrical signal can be converted into after digital signal sending to PLC by temperature control module, and PLC is further through being attached thereto Digital to analog converter this digital signal is converted into the signal of telecommunication, be can achieve to electric device related in control circuit by this signal of telecommunication The control of contact, it is achieved thereby that the control to big fire electromagnetic valve and small fire electromagnetic valve coil, has fast response time, controls essence Spend high advantage；Then enough air can be introduced by arranging steam on the burner and erecting runner into burner it is ensured that combustion gas Can be fully burned, and baroswitch is arranged on combustion gas ingress pipe, erect in steam and on runner, blast switch is set, and should Baroswitch and blast switch are electrically connected in control circuit, then achieve and can allow in the case that combustion gas and air are both turned on Lighter is lighted a fire it is ensured that the timing lighted a fire, and the setting of fire defector switch then can be opened to igniting after igniting success Close circuit and disconnected the service life it is ensured that ignition switch in good time.

Gas flow in small fire branch road can be adjusted by small fire needle-valve, be also achieved that in deep fat holding stage Gas flow can be adjusted according to the actual caloric receptivity of deep fat, so that the two is substantially mated；Big fire can be propped up by gas flow valve Gas flow in road is controlled, and passes through valve positioner, can achieve in conjunction with plc and gas flow valve is automatically adjusted, Have easy to control, the high advantage of automated procedures；Can be respectively to going out by fuel-displaced oil temperature sensor and oil-feed oil temperature sensor Temperature in oil pipe and knockout drum flowline carries out signals collecting.

Another preferred implementation of the present invention is that pitch P of described coil pipe is P=with the relation of pipe diameter d 2.2d；Described coil pipe is two, and this coaxial crisscross parallel of two coil pipes is arranged；Set helical protrusion in described threaded flue endoporus The helical angle stretched is between 8 degree to 30 degree；Described front diaphragm and rear diaphragm are at least respectively one piece.Coil pitch is arranged For pipe diameter d 2.2 times, then ensure that and easily with staggered inserted mode coaxial parallel-connection, two coil pipes can be set to one Rise, be so the formation of double end coil pipe in structure, and two oil inlet pipes being arranged in parallel are accessed a total oil inlet pipe, will The flowline that two are arranged in parallel accesses a total flowline, then the conduction oil being imported by total oil inlet pipe is just by coupled Two branch's oil inlet pipes be directed respectively into each in connected coil pipe, and oil-out by with the flowline being each connected conflux into Total flowline, is formed for two by the conduction oil that total oil inlet pipe imports in the process and branches into each corresponding coil pipe Interior acquisition is heated, and this just makes the heating of convection current oil become more abundant, and conduction oil temperature rise just becomes more rapid, more ensure that Supply to the equipment heat that is heated；The helical angle of spiral projection is arranged in 8 degree to 30 degree angular ranges and both can guarantee that flue gas Preferable work flow resistance can be obtained in pipe, strengthen the heat exchange effect of flue gas and heated medium, in turn ensure that to spiral projection The manufacturability being processed.Front diaphragm and how much reality according to flue gas heat recoverers of rear diaphragm setting block number Depending on length.

Brief description

With reference to the accompanying drawings and detailed description the combustion gas die heater of the present invention is described further.

Fig. 1 is a kind of structural representation of specific embodiment of combustion gas die heater of the present invention；

Fig. 2 is the left view of Fig. 1；

Fig. 3 is the axonometric chart of single coil；

Fig. 4 is the axonometric chart after two coil pipe association settings；

Fig. 5 is the axonometric chart of threaded flue；

The axonometric chart of Tu6Shi flue gas heat recoverer partly cut-away；

Fig. 7 is the axonometric chart of front diaphragm or rear diaphragm shown in Fig. 1 and Fig. 6；

Fig. 8 is the structural representation of Oil-gas Separation part shown in Fig. 1；

Fig. 9 is the structural representation of oil-temperature control device shown in Fig. 1.

In figure, 1- flue gas heat recoverer, diaphragm after 1.1-, 1.2 threaded flues, 1.2.1- spiral projection, 1.3- Diaphragm afterwards, 1.4- smoke evacuation room, 1.5- flue gas imports room, 1.6- flue gas commutation room, 1.7- air intlet, and 2- steam flows over Road, 3- steam erects runner, and 4- combustion gas is responsible for, 5- heat-conducting oil furnace, 5.1- thermal insulation layer, 5.2- furnace shell, 5.3- spacer block one, 5.4- outer disk Pipe, 5.5- inner coil pipe, 5.6- smokejack, 5.7- flowline, 5.8- oil inlet pipe, 5.9- spacer block two, 5.10- sight glass, 6- frame, 7- catch pot, 8- oil spilling tank, 9- oil spill pipe, 10- long-pending oil case, 11- fuel outlet valve, 12- exhaustor, 13- pressure air, 14- Combustor, 15- overflows trachea, 16- knockout drum flowline, 17- burner, 18- oil-temperature control device, 18.1- combustion gas main valve, 18.2- small fire electromagnetic valve, 18.3- small fire needle-valve, 18.4- gas flow valve, 18.5- fire defector switchs, 18.6-PLC, 18.7- ignition controller, 18.8- combustion gas air gauge, the fuel-displaced oil temperature sensor of 18.9-, 18.10- oil-feed oil temperature sensor, 18.11- oil-feed oil gauge, the fuel-displaced oil gauge of 18.12-, 18.13- temperature control module, 18.14- valve positioner, 18.15- combustion gas Ingress pipe, 18.16- blast switch, 18.17- baroswitch, 18.18- big fire electromagnetic valve, 18.19- wire.

In figure shows the flow direction of hot-air with single tail filled arrows line of zone circle；

In figure shows the flow direction of conduction oil with single tail hollow arrow line；

In figure shows the flow direction of combustion gas with three tail hollow arrow lines；

In figure shows the flow direction of flue gas with single tail filled arrows line.

Specific embodiment

In combustion gas die heater shown in Fig. 1 and Fig. 2, frame 6 fixedly mounts heat-conducting oil furnace 5, this heat-conducting oil furnace 5 In combustor 14, coil pipe is set, is separated with spacer block 1 between this coil pipe and stove inwall, pitch P of this coil pipe is pipe diameter d 2.2 times, this coil pipe by the outer coil pipe 5.4 being coaxially disposed and inner coil pipe 5.5 concatenation form（See Fig. 3）, this outer coil pipe 5.4 and interior Separated with spacer block 1 between coil pipe 5.5, this coil pipe is two, two coil pipe coaxial lines are interlaced with each other is connected in parallel for this（See figure 4）, two oil inlet pipes 5.8 of this two coil pipes are in parallel to access a total oil inlet pipe, and this total oil inlet pipe is installed with oil-feed oil Temperature sensor 18.10 and oil-feed oil gauge 18.11, two flowlines 5.7 of two coil pipes are in parallel to access a total flowline, On this total flowline, fuel-displaced oil temperature sensor 18.9 and fuel-displaced oil gauge 18.12 are installed, this fuel-displaced oil temperature sensor 18.9 It is electrically connected on temperature control module 18.13 input terminal by wire 18.19 with oil-feed oil temperature sensor 18.10, this temperature control module 18.13 lead-out terminal is electrically connected with PLC18.6 input terminal by wire 18.19.Furnace shell 5.2 inwall of this heat-conducting oil furnace 5 It is provided with thermal insulation layer 5.1, in this furnace shell 5.2 inner chamber, be provided with high temp. flue 5.11, this high temp. flue 5.11 bottom Led to combustor 14 by exhaust opening 5.6, sight glass 5.10 is provided with furnace shell 5.2.Total flowline 5.7 its expose stove The elongated end of shell 5.2 leads to the side being arranged at catch pot 7（See Fig. 8), lead to setting in the opposite side of catch pot 7 Knockout drum flowline 16, this flowline 5.7 position is less than knockout drum flowline 16, this flowline 5.7 axis and Oil-gas Separation Tank 7 axis crossed axis angle α is between 80O～90O, is 85O, this knockout drum flowline 16 axis and catch pot 7 in the present embodiment Axis crossed axis angle β is between 80O～90O, is 85O in the present embodiment, and the outside even equipment of being heated is serially connected with knockout drum flowline 16 On pipeline and between total oil inlet pipe 5.8, catch pot 7 top is provided with the excessive trachea 15 communicating with tank inner chamber, Oil spilling tank 8 is provided with methods, rack 6 on catch pot 7, this oil spilling tank 8 top is provided with exhaustor 12, excessive trachea 15 is outside Elongated end is connected to oil spilling tank 8 bottom and is led to oil spilling tank 8 inner chamber, is additionally provided with oil spill pipe 9 in oil spilling tank 8 bottom, and this overflows Oil pipe 9 top B passes through oil spilling tank 8 bottom and extends in oil spilling tank 8 inner chamber, and this oil spill pipe 9 top B exceeds in oil spilling tank 8 Heart plane A, this oil spill pipe 9 bottom is connected in long-pending oil case 10, and this long-pending oil case 10 bottom is provided with fuel outlet valve 11.In this heat-conducting oil furnace Flue gas heat recoverer 1 is provided with methods, rack 6 on 5（See Fig. 6）, this flue gas heat recoverer 1 one end be connected sealing arrange Smoke evacuation room 1.4 and flue gas import room 1.5, and the sealing of this flue gas heat recoverer 1 other end is provided with flue gas commutation room 1.6, this cigarette Be arranged in parallel in gas heat recoverer 1 some threaded flues 1.2, is provided with spiral projection in this threaded flue 1.2 endoporus 1.2.1（See Fig. 5）, the helical angle of this spiral projection 1.2.1 is arranged between 8 degree to 30 degree, along spiral shell in this flue gas heat recoverer 1 Stricture of vagina smoke pipe 1.2 is axially-spaced to be staggeredly equipped with two pieces of front diaphragms 1,3 and rear diaphragm 1.1（See Fig. 7）, this flue gas heat Amount withdrawer 1 bottom is provided with the opening leading to steam crossing current road 2, this steam crossing current road 2 leads to and is connected to the perpendicular stream of steam The one end in road 3, the other end that steam erects runner 3 leads to and is arranged on burner 17, and this steam erects and is provided with blast on runner 3 and opens Close 18.16；Oil-temperature control device 18 is additionally provided with frame 6（See Fig. 9）, in combustion gas main valve in this oil-temperature control device 18 Combustion gas air gauge 18.8 is installed on 18.1, combustion gas main valve 18.1 outlet side is arranged in parallel small fire electromagnetic valve 18.2 and big thermoelectricity Magnet valve 18.18, the coil of the coil of this small fire electromagnetic valve 18.1 and big fire electromagnetic valve 18.18 is electric with the lead-out terminal of PLC18.6 Connect, this small fire electromagnetic valve 18.2 is connected in series small fire needle-valve 18.3, this big fire electromagnetic valve 18.18 is connected in series and fires Throughput valve 18.4, the valve of this gas flow valve 18.4 is in transmission connection with valve positioner 18.14 by connecting rod, this valve control Device 18.14 processed is controlled by PLC18.6 by the electrical equipment in control system, this small fire needle-valve 18.3 and gas flow valve 18.4 outlet side imports in combustion gas ingress pipe 18.15, this combustion gas ingress pipe 18.15 is provided with baroswitch 18.17, this combustion Gas ingress pipe 18.15 leads to and is arranged on burner 17, and this burner 17 and combustor 14 lead to, and this burner 17 also sets up There are fire defector switch 18.5 and ignition controller 18.7, this fire defector switch 18.5 and ignition controller 18.7 electrically connect, Baroswitch 18.17 mutually concatenates in control circuit with blast switch 18.16 and is lighted a fire as ignition controller 18.7 Interlock switch.Implement through above, by the change of flue gas heat recoverer 1 structure, then set scattered in flue gas heat recoverer 1 Heat pipe just be divide into and is connected with room 1.4 of discharging fume and imports, with flue gas, two parts that room 1.5 is connected, and this two parts radiating tube passes through Flue gas commutation room 1.6 communicates consecutive and is integrated, and the radiating to flue gas just becomes as being carried out by two pipes mutually gone here and there, the radiating row of flue gas Journey is increased, that is, extends the heat exchanger time of flue gas it is ensured that can carry out between heated medium in flue gas and case sufficiently Heat exchange, also ensure that the flue gas of final discharge can meet hot driving standard simultaneously, and it is long to reach heat exchanger time, radiating fully, The good enforcement purpose of heat exchange effect, and make set spiral shell in radiating tube, and threaded flue 1.2 endoporus with threaded flue 1.2 Rotation projection 1.2.1 compares the light pipe of inner wall smooth, and on the one hand its heat transfer area increases 1.7-1.8 times, the thermal diffusivity of pipe itself Can greatly enhance, another aspect spiral projection 1.2.1 also can produce certain damping to inner tube smoke, delay flue gas to pass through pipe The time of son, hot-cast socket between flue gas and heated medium is made to become more abundant, another aspect accumulates on spiral projection 1.2.1 Its stress direction of crock is different, and when pipe expands and shrinks, crock just can be voluntarily under the different stress of the direction Come off, the effect of self cleaning tube wall dirty can be reached, and front diaphragm 1.3 and rear water conservancy diversion in flue gas heat recoverer 1 Heated medium in case can be interlocked and separate, define by front diaphragm 1.3 and rear diaphragm 1.1 by the setting of dividing plate 1.1 The medium runner separating, when heated medium flows in this runner, its flowing stroke is increased, and also just extends heated medium Flowing time in case, it is ensured that heated medium can fully inhale temperature rise value expected from flue gas heat acquisition, equally reaches heat friendship Change that the time is long, radiating fully, the good enforcement purpose of effect.By being respectively provided with flowline 5.7 in catch pot 7 tank body both sides With knockout drum flowline 16, then can be whirled up washing away the guarantee providing in structure in tank for fluid, and flowline 5.7 axle Line and catch pot 7 axis crossed axis angle α are set to 80O～90O, then when deep fat enters catch pot 7 by flowline 5.7, Helical flow will be produced along inner tank wall at an angle, so be between flowline 5.7 and knockout drum flowline 16 Fluid on liquid layer is just stirred under input pressure effect, and generation is washed away and washed away, and the gas in fluid also just can obtain To produce bubble and fully to overflow, reach and so that the generation flowing of tank inner fluid is washed away, Oil-gas Separation is fully thorough, and rational in infrastructure Enforcement purpose, equally knockout drum flowline 16 axis and catch pot 7 axis crossed axis angle β are set to 80O～90O, Can make with oil pump be connected flowline produces in oil suction and oil inlet pipe as to oily stirring effect, further enhancing fluid Flowing in tank is washed away, accelerate the formation of hot bubble in oil it is ensured that in fluid gas abundant spilling.Oil-temperature control fills Put 18 utilization, then allow combustion gas that two-way can be divided into after combustion gas main valve 18.1 to import combustion gas ingress pipe 18.17 and enter burner In 17, when thus may be implemented in initial heating, make small fire electromagnetic valve 18.2 and big fire electromagnetic valve 18.18 equal by control system Open, allow combustion gas enter combustor 14 with maximum stream flow and conduction oil is quickly heated up to set temperature value, and relief big fire electromagnetism This road air inlet is cut off in valve 18.18 work, and small fire electromagnetic valve 18.2 working condition is constant, that is, when oil temperature reaches setting temperature by little Thermoelectricity magnet valve 18.2 keeps heating, and to reach, conduction oil is incubated and is delayed with the time of conduction oil temperature drop, and this is just straight Connect the fluctuation that effectively slow down oil temperature, and when heat conduction oil temperature is down to setting lowest temperature, then big fire electromagnetic valve 18.18 is again Heavy first unlatching recovers two-way supply, makes oil temperature and the fast quick-recovery of energy is to desired temperature, thus efficiently avoid oil temperature fluctuation Continuity, reached rational in infrastructure, Oil-temperature control is stable, and the high enforcement purpose of control accuracy.Oil temperature sensing in the process Device can 18.9,18.10 collection oil temperature signals and by it be converted into analog electrical signal import temperature control module 18.13, temperature control module This analog electrical signal can be converted into after digital signal sending to PLC18.14 by 18.13, and PLC18. 14 is further through being attached thereto This digital signal is converted into the signal of telecommunication by digital to analog converter, be can achieve by this signal of telecommunication and electric device related in control circuit is touched The control of point, it is achieved thereby that the control to big fire electromagnetic valve 18.18 and small fire electromagnetic valve 18.2 coil, and pass through baroswitch 18.17 and blast switch 18.16 then achieve and only could allow ignition controller in the case that combustion gas and air are both turned on 18.7 are lighted a fire it is ensured that the timing lighted a fire, and the setting of fire defector switch 18.5 then can be after igniting success, to igniting On-off circuit is disconnected the service life it is ensured that ignition switch immediately；And by fuel-displaced oil gauge 18.12 and oil-feed oil pressure Table 18.11 can show the oil pressure value in flowline and oil inlet pipe respectively, facilitates the control to oil pressure in pipe.In figure is with zone circle Single tail filled arrows line show the flow direction of hot-air；Show the flow direction of conduction oil with single tail hollow arrow line；With three tails Hollow arrow line shows the flow direction of combustion gas；In figure shows the flow direction of flue gas with single tail filled arrows line.

Above-mentioned some preferred implementations only listing combustion gas die heater of the present invention, but it is not limited to this.Do not disobeying In the case of back of the body its general principles, also can make some conversion and improve.For example, to oil inlet pipe axis and catch pot axis Angle set by crossed axis angle α is not only limited to 85O, alternatively 80O, or the unspecified angle between 80O～90O；Equally to fuel-displaced The setting of tube angulation is also such, and so on.As long as any structure made on the basis of the present invention is close, functional similarity More this is accordingly to be regarded as falling into protection scope of the present invention.

Claims (10)

1. a kind of combustion gas die heater, including frame（6）, it is fixedly installed on frame（6）On heat-conducting oil furnace（5）It is characterised in that： Described heat-conducting oil furnace（5）Combustor（14）In set coil pipe by outer coil pipe（5.4）At least inner coil pipe together（5.5）Successively Nesting forms, this outer coil pipe（5.4）With each layer inner coil pipe（5.5）Mutually concatenate；This heat-conducting oil furnace（5）It is provided with cigarette on upper methods, rack Gas heat recoverer（1）, this flue gas heat recoverer（1）The connected sealing in one end arranges smoke evacuation room（1.4）Import room with flue gas （1.5）, this flue gas heat recoverer（1）Other end sealing is provided with flue gas commutation room（1.6）, this flue gas heat recoverer（1） Inside be arranged in parallel some threaded flues（1.2）, this threaded flue（1.2）It is provided with spiral projection in endoporus（1.2.1）, should Flue gas heat recoverer（1）Inside threadingly smoke pipe（2）Axially-spaced it is staggeredly equipped with front diaphragm（3）With rear diaphragm （1）；This heat-conducting oil furnace（5）It is provided with catch pot on upper methods, rack（7）With oil spilling tank（8）, this catch pot（7）It is in Oil spilling tank（8）Lower section, this catch pot（7）By flowline（5.7）Lead to setting with coil pipe, this flowline（5.7）Setting In catch pot（7）Side, in catch pot（7）Opposite side is provided with knockout drum flowline（16）, this flowline（5.7） Axis and catch pot（7）Axis crossed axis angle α is 80O～90O, this knockout drum flowline（16）Axis and catch pot （7）Axis crossed axis angle β is 80O～90O, this catch pot（16）With oil spilling tank（8）Interlink；In frame（6）On also set up There is oil-temperature control device（18）.

2. combustion gas die heater according to claim 1 it is characterised in that:Described oil-temperature control device（18）Including temperature control Unit, the oil temperature sensor electrically connecting with temperature conditioning unit, described temperature conditioning unit is electrically connected to PLC（18.6）Input terminal on, This PLC（18.6）Lead-out terminal on electrically connect small fire electromagnetic valve（18.2）Coil and big fire electromagnetic valve（18.18）Line Circle, this small fire electromagnetic valve（18.2）With big fire electromagnetic valve（18.18）It is connected in parallel in combustion gas main valve（18.1）With combustion gas ingress pipe （18.15）Between, this combustion gas ingress pipe（18.15）Lead to and be arranged at burner（17）On, this burner（17）On lead to setting Steam and erect runner（3）And ignition controller（18.7）With fire defector switch（18.5）, this fire defector switch（18.5） With ignition controller（18.7）Electrical connection, this combustion gas ingress pipe（18.15）On be provided with baroswitch（18.17）, this steam erect Runner（3）On be provided with blast switch（18.16）, this baroswitch（18.17）And blast switch（18.16）It is electrically connected to control In circuit processed.

3. combustion gas die heater according to claim 1 it is characterised in that:Pitch P of described coil pipe and the pass of pipe diameter d It is for P=2.2d.

4. the combustion gas die heater according to claim 1 or 3 it is characterised in that:Described coil pipe is two, and this two coil pipes are same Shaft staggered it is arranged in parallel.

5. combustion gas die heater according to claim 1 it is characterised in that:Described threaded flue（1.2）Set in endoporus Spiral projection（1.2.1）Helical angle between 8 degree to 30 degree.

6. combustion gas die heater according to claim 1 it is characterised in that:Described front diaphragm（1.3）With rear water conservancy diversion every Plate（1.1）At least respectively it is one piece.

7. combustion gas die heater according to claim 2 it is characterised in that:Described small fire electromagnetic valve（18.2）Gas outlet is gone here and there Connection is connected to small fire needle-valve（18.3）, this small fire needle-valve（18.3）With combustion gas ingress pipe（18.15）Interlink.

8. combustion gas die heater according to claim 2 it is characterised in that:Described big fire electromagnetic valve（18.18）Gas outlet is gone here and there Connection is connected to be connected in series gas flow valve（18.4）, this gas flow valve（18.4）With combustion gas ingress pipe（18.15）Communicate Even.

9. combustion gas die heater according to claim 2 it is characterised in that:Described gas flow valve（18.4）Valve passes through Connecting rod and valve positioner（18.14）It is in transmission connection, this valve positioner（18.14）It is subject to by the electrical equipment in control system PLC（18.6）Control.

10. combustion gas die heater according to claim 2 it is characterised in that:Described oil temperature sensor is two, this two Oil temperature sensor is respectively fuel-displaced oil temperature sensor（18.9）With oil-feed oil temperature sensor（18.10）.