CN203096409U - Relaxation heat setting machine achieving gradient recycling of sensible heat of drained water, exhaust air and condensed water by stages - Google Patents
Relaxation heat setting machine achieving gradient recycling of sensible heat of drained water, exhaust air and condensed water by stages Download PDFInfo
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- CN203096409U CN203096409U CN 201320036522 CN201320036522U CN203096409U CN 203096409 U CN203096409 U CN 203096409U CN 201320036522 CN201320036522 CN 201320036522 CN 201320036522 U CN201320036522 U CN 201320036522U CN 203096409 U CN203096409 U CN 203096409U
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Abstract
The utility model relates to a relaxation heat setting machine achieving gradient recycling of sensible heat of drained water, exhausted air and condensed water by stages. The relaxation heat setting machine is characterized in that fresh air in a fresh air preheater enters an air supplement opening of the relaxation heat setting machine after flowing through an exhausted air preheating section, a low-pressure condensed water preheating section, a medium-pressure condensed water preheating section and a high-pressure condensed water preheating section in sequence and an exhaust pipe is connected into the exhausted air preheating section; a high-pressure drain pipe, a medium-pressure drain pipe and a low-pressure drain pipe, which can be switched, are connected on a main drain pipe of a heat exchanger in parallel; the outlet of a high-pressure drain valve is connected into the high-pressure condensed water preheating section via a first condensed water recycling pipe; the outlet of a medium-pressure drain valve is connected into the medium-pressure condensed water preheating section via a second condensed water recycling pipe; the outlet of a low-pressure drain valve is connected into the low-pressure condensed water preheating section via a third condensed water recycling pipe; the drained water of the high-pressure condensed water preheating section is also connected into the inlet of the medium-pressure condensed water preheating section; and the drained water of the medium-pressure condensed water preheating section is also connected into the inlet of the low-pressure condensed water preheating section. The setting machine can achieve full utilization of waste heat of exhausted air and condensed water and has high heat efficiency.
Description
Technical field
The utility model relates to a kind of relaxation heat setting machine, and particularly a kind of classification is hydrophobic, air draft and condensed water sensible heat step reuse relaxation heat setting machine.
Background technology
The relaxation heat setting machine is often used in the post processing of polyester staple fiber, the cabinets cavity of relaxation heat setting machine is provided with blower fan, heat exchanger and product is carried out the drying chamber of shaping and drying, the inlet scoop of blower fan communicates with wind-supplying mouth on the casing, the air outlet of blower fan is aimed at the heat exchanger of top, the air outlet of heat exchanger top enters drying chamber, the drying chamber below is provided with return air inlet and exhaust outlet, exhaust outlet leads to outside the casing by exhaust duct, hand control valve is installed on the exhaust duct, and return air inlet also communicates with the inlet scoop of blower fan.The new wind that enters in the casing from wind-supplying mouth mixes with return air after blower fan blows to heat exchanger, heat exchanger is heated becomes hot blast, hot blast enters drying chamber and product is finalized the design and dries, and a part of then wind enters exhaust outlet by air draft, and a part of wind is by the return air inlet reuse.High-pressure steam pipe, middle pressure steam pipe and low pressure steam pipe link to each other with main feed header by stop valve respectively, and main feed header links to each other with the inlet of heat exchanger, and the outlet conduit of heat exchanger is provided with drain valve.
The weak point of this relaxation heat setting machine is: (1) is according to the product difference, with steam pressure Three Estate is arranged, a drain valve but only is installed, drain valve can only be under some pressure operate as normal, when non-design pressure state, can not keep the required pressure reduction of operate as normal, or discharge capacity is not enough, or steam leakage is serious.(2) waste heat of condensed water that drain valve is arranged needs external user to be used, and when no suitable user, is drained waste inevitably.(3) pollutant that carries of return air very easily in the heat exchanger deposition, worsens heat exchange efficiency.(4) even the condensed water waste heat is flashed utilization, the condensate temperature of discharging still has 130 ℃～150 ℃, and the waste heat loss amount is big.(5) high temperature air draft waste heat does not utilize, and exhaust air rate is manually controlled, and discharge capacity randomness is big.
The utility model content
The purpose of this utility model is, overcome problems of the prior art, provide that a kind of classification is hydrophobic, air draft and condensed water sensible heat step reuse relaxation heat setting machine, no matter product uses high pressure, middle pressure or low-pressure steam, relaxation heat setting machine self all can realize waste heat step, make full use of.
For solving above technical problem, a kind of classification of the present utility model is hydrophobic, air draft and condensed water sensible heat step reuse relaxation heat setting machine, the cabinets cavity of relaxation heat setting machine is provided with blower fan, heat exchanger reaches the drying chamber that product is carried out shaping and drying, the inlet scoop of described blower fan communicates with wind-supplying mouth on the casing, the air outlet of blower fan is aimed at the heat exchanger of top, the air outlet of described heat exchanger top enters described drying chamber, the drying chamber below is provided with return air inlet and exhaust outlet, described exhaust outlet leads to outside the casing by exhaust duct, described return air inlet also communicates with the inlet scoop of blower fan, also comprise new wind preheater, described new wind preheater comprises the air draft preheating section that carries out indirect heat exchange successively with new wind, low pressure condensation water preheat section, middle condensed water preheating section and the high pressure condensation water preheat section of pressing; New wind enters new wind preheater by the new wind inlet of air draft preheating section, the pre-hot blast outlet of air draft preheating section, low pressure condensation water preheat section, middle pressure condensed water preheating section and the high pressure condensation water preheat Duan Houcong high pressure condensation water preheat section of flowing through is successively flowed out, described pre-hot blast outlet inserts the described wind-supplying mouth of relaxation heat setting machine, and described exhaust duct inserts the air draft inlet of described air draft preheating section; Be connected in parallel to the high pressure drain pipe that can switch on total drain pipe of described heat exchanger, middle drain pipe and the low pressure drain pipe of pressing, described high pressure drain pipe, the middle pressure on drain pipe and the low pressure drain pipe is separately installed with the high pressure drain valve, middle drain valve and the low pressure drain valve of pressing, the outlet of described high pressure drain valve inserts the inlet of described high pressure condensation water preheat section by the first condensed water reuse pipe, press the outlet of drain valve to insert described middle inlet of pressing the condensed water preheating section by the second condensed water reuse pipe in described, the outlet of described low pressure drain valve inserts the inlet of described low pressure condensation water preheat section by the 3rd condensed water reuse pipe.
With respect to prior art, the utility model has been obtained following beneficial effect: (1) is when product arts demand high steam, to heat exchanger input high steam, high steam becomes the high pressure condensed water discharge latent heat in heat exchanger after, enter high pressure condensation water preheat section by the first condensed water reuse pipe after the high pressure condensed water is dredged out by the high pressure drain valve new wind is carried out fourth stage preheating, in high pressure condensation water preheat section, the high pressure condensed water discharges sensible heat to new wind; (2) when product arts demand middle pressure steam, to heat exchanger input middle pressure steam, middle pressure steam becomes the middle condensed water of pressing discharge latent heat in heat exchanger after, enter the middle condensed water preheating section of pressing by the second condensed water reuse pipe after middle pressure condensed water is dredged out by middle pressure drain valve new wind is carried out third level preheating, at middle pressure condensed water preheating section, middle pressure condensed water discharges sensible heat to new wind; (3) when product arts demand low-pressure steam, to heat exchanger input low-pressure steam, low-pressure steam becomes the low pressure condensed water discharge latent heat in heat exchanger after, enter low pressure condensation water preheat section by the 3rd condensed water reuse pipe after the low pressure condensed water is dredged out by the low pressure drain valve new wind is carried out second level preheating, in low pressure condensation water preheat section, the low pressure condensed water discharges sensible heat to new wind; (4) air draft of the relaxation heat setting machine air draft preheating section that inserts new wind preheater carries out first order preheating to new wind, and the waste heat in the air draft is recovered, and has reduced the thermal pollution and the heat loss of discharging, and new wind-warm syndrome degree is able to preliminary raising; New subsequently wind continues to be heated in low pressure condensation water preheat section, middle pressure condensed water preheating section and high pressure condensation water preheat section, is admitted in the relaxation heat setting machine after temperature improves step by step, has reduced the steam consumption of heat exchanger in the relaxation heat setting machine; The new wind that temperature is minimum is first through the lower air draft preheating of excess temperature, again by the high slightly low pressure condensation water preheat of temperature, then by the higher middle pressure condensed water preheating of temperature, then by the higher high pressure condensation water preheat of temperature; In this process, the temperature of new wind improves step by step, also is to increase gradually to the temperature of the medium of its heating, and the mode of this countercurrent flow has totally kept very high heat exchange efficiency.(5) the utility model need not to use flash tank, level pressure overflow valve and preceding pressure control valve, has reduced cost, has saved installing space, has reduced floor space, avoids too bulky complex of laxation shaping machine, is more conducive to arrange in factory building use.The pressure and temperature of saturated vapor and saturated condensed water is one to one, flash distillation utilizes waste heat just to reclaim condensed water in sensible heat under original pressure and the difference between the sensible heat under the flashing pressure, and flashing pressure is low more, the flash steam mobilization dynamic is low more, the flash steam utilization is difficult more, so be difficult to condensed water is reduced to below 100 ℃; Reclaiming the condensed water waste heat with flash distillation compares, the utility model can reclaim high pressure condensed water sensible heat, middle pressure condensed water sensible heat, low pressure condensed water sensible heat and air draft waste heat, the exhaust temperature of condensed water can be reduced to below 60 ℃, and the heat energy utilization rate is able to further raising.
As preferred version of the present utility model, the outlet of described high pressure condensation water preheat section is provided with the 4th drain valve, and the outlet of described the 4th drain valve inserts described middle inlet of pressing the condensed water preheating section by the 4th condensed water reuse pipe; Press the outlet of condensed water preheating section to be provided with the 5th drain valve in described, the outlet of described the 5th drain valve inserts the inlet of described low pressure condensation water preheat section by the 5th condensed water reuse pipe; The outlet of described low pressure condensation water preheat section is provided with the 6th drain valve, and the outlet of described the 6th drain valve inserts condensate pump by the 6th condensate pipe.(1) when product arts demand high steam, to heat exchanger input high steam, high steam becomes the high pressure condensed water discharge latent heat in heat exchanger after, enter high pressure condensation water preheat section by the first condensed water reuse pipe after the high pressure condensed water is dredged out by the high pressure drain valve new wind is carried out fourth stage preheating, in high pressure condensation water preheat section, pressure was declined to become the middle condensed water of pressing after the high pressure condensed water discharged sensible heat to new wind; Should middlely press condensed water to dredge out by the 4th drain valve, press the condensed water preheating section that new wind is carried out third level preheating in entering by the 4th condensed water reuse pipe then, at middle pressure condensed water preheating section, pressure was declined to become the low pressure condensed water after middle pressure condensed water discharged sensible heat to new wind, this low pressure condensed water is dredged out by the 5th drain valve, enter low pressure condensation water preheat section by the 5th condensed water reuse pipe then new wind is carried out second level preheating, the first order preheating of new wind is undertaken by air draft; Relaxation heat setting machine self just can be realized the cascade utilization of air draft and condensed water waste heat.(2) when product arts demand middle pressure steam, to heat exchanger input middle pressure steam, middle pressure steam becomes the middle condensed water of pressing discharge latent heat in heat exchanger after, enter the middle condensed water preheating section of pressing by the second condensed water reuse pipe after middle pressure condensed water is dredged out by middle pressure drain valve new wind is carried out third level preheating, at middle pressure condensed water preheating section, pressure was declined to become the low pressure condensed water after middle pressure condensed water discharged sensible heat to new wind, this low pressure condensed water is dredged out by the 5th drain valve, enter low pressure condensation water preheat section by the 5th condensed water reuse pipe then new wind is carried out second level preheating, the first order preheating of new wind is undertaken by air draft; Relaxation heat setting machine self just can be realized the cascade utilization of air draft and condensed water waste heat.(3) when product arts demand low-pressure steam, to heat exchanger input low-pressure steam, low-pressure steam becomes the low pressure condensed water discharge latent heat in heat exchanger after, enter low pressure condensation water preheat section by the 3rd condensed water reuse pipe after the low pressure condensed water is dredged out by the low pressure drain valve new wind is carried out second level preheating, the first order preheating of new wind is undertaken by air draft; Relaxation heat setting machine self just can be realized the cascade utilization of air draft and condensed water waste heat.
As preferred version of the present utility model, high-pressure steam pipe, middle pressure steam pipe and low pressure steam pipe link to each other with main feed header by first stop valve, second stop valve and the 3rd stop valve respectively, and described main feed header links to each other with the inlet of described heat exchanger; Described high pressure drain pipe is provided with the 4th stop valve, and the rear of described the 4th stop valve is in series with described high pressure drain valve; Press drain pipe to be provided with the 6th stop valve in described, the rear of described the 6th stop valve is in series with the described middle drain valve of pressing; Cross-over connection has the 5th stop valve between the inlet of described the 4th stop valve and described the 6th stop valve, and cross-over connection has the 7th stop valve between the inlet of described the 6th stop valve and described low pressure drain valve; On described the 4th condensed water reuse pipe the 8th stop valve is installed, on described the 5th condensed water reuse pipe the 9th stop valve is installed.(1) when the product arts demand uses high steam, opens first stop valve, the 4th stop valve, the 8th stop valve and the 9th stop valve, close second stop valve, the 3rd stop valve, the 5th stop valve, the 6th stop valve and the 7th stop valve simultaneously; What this moment, heat exchanger used is the high steam of outer confession, the high pressure condensed water that heat exchanger produces is dredged out through the 4th stop valve and high pressure drain valve, the high pressure condensation water preheat section that enters new wind preheater through the first condensed water reuse pipe is carried out fourth stage preheating to new wind, in high pressure condensation water preheat section, the full flashing of high pressure condensed water owing to dilatation, condensed water pressure descends, condensation rapidly behind flash steam and the new air heat-exchange release latent heat, the condensed water that descends of flash distillation and pressure and full flashing vapour condensed water do not continue to discharge in high pressure condensation water preheat section and dredge out from the 4th drain valve after pressing condensed water in becoming behind the sensible heat, and the flow of pressing condensed water in the control of the 4th drain valve is to guarantee in the high pressure condensation water preheat section condensed water and the new sufficient exchange heat of wind; Enter the middle condensed water preheating section of pressing by the 4th condensed water reuse pipe after middle pressure condensed water is dredged out by the 4th drain valve new wind is carried out third level preheating, in middle pressure condensed water preheating section, the secondary flash distillation of middle pressure condensed water owing to dilatation, condensed water pressure descends for the second time, condensation rapidly behind secondary flash steam and the new air heat-exchange release latent heat, the condensed water that descends for the second time of flash distillation and pressure and secondary flash steam condensed water do not continue to discharge in middle pressure condensed water preheating section becomes the low pressure condensed water behind the sensible heat and dredges out from the 5th drain valve, and the flow of the 5th drain valve control low pressure condensed water is to press condensed water and the new sufficient exchange heat of wind in the condensed water preheating section in guaranteeing; Enter low pressure condensation water preheat section by the 5th condensed water reuse pipe after the low pressure condensed water is dredged out by the 5th drain valve new wind is carried out second level preheating, in low pressure condensation water preheat section, three flash distillations of low pressure condensed water owing to dilatation, condensed water pressure descends for the third time, three flash steams and new air heat-exchange discharge condensation rapidly behind the latent heat, the condensed water that descends for the third time of flash distillation and pressure and three flash steam condensed waters do not continue to discharge in low pressure condensation water preheat section becomes cryogenic condensation water behind the sensible heat and dredges out from the 6th drain valve, the flow of the 6th drain valve control cryogenic condensation water is to guarantee condensed water and the new sufficient exchange heat of wind in the low pressure condensation water preheat section, and cryogenic condensation water inserts condensate pump by the 6th condensate pipe; The first order preheating of new wind is undertaken by air draft; Relaxation heat setting machine self just can be realized the cascade utilization of air draft and condensed water waste heat.(2) when the product arts demand uses middle pressure steam, open second stop valve, the 5th stop valve, the 6th stop valve and the 9th stop valve, close first stop valve, the 3rd stop valve, the 4th stop valve, the 7th stop valve and the 8th stop valve simultaneously; What this moment, heat exchanger used is the middle pressure steam of outer confession, the middle pressure condensed water that heat exchanger produces is through the 5th stop valve, the 6th stop valve and middle pressure drain valve are dredged out, the middle pressure condensed water preheating section that enters new wind preheater through the second condensed water reuse pipe carries out third level preheating to new wind, in middle pressure condensed water preheating section, the full flashing of middle pressure condensed water owing to dilatation, condensed water pressure descends, condensation rapidly behind full flashing vapour and the new air heat-exchange release latent heat, the condensed water that descends of flash distillation and pressure and full flashing vapour condensed water do not continue to discharge in middle pressure condensed water preheating section becomes the low pressure condensed water behind the sensible heat and dredges out from the 5th drain valve, and the flow of the 5th drain valve control low pressure condensed water is to press in the condensed water preheating section condensed water and the new sufficient exchange heat of wind in guaranteeing; Enter low pressure condensation water preheat section by the 5th condensed water reuse pipe after the low pressure condensed water is dredged out by the 5th drain valve new wind is carried out second level preheating, in low pressure condensation water preheat section, the secondary flash distillation of low pressure condensed water owing to dilatation, condensed water pressure descends for the second time, condensation rapidly behind secondary flash steam and the new air heat-exchange release latent heat, the condensed water that descends for the second time of flash distillation and pressure and secondary flash steam condensed water do not continue to discharge in low pressure condensation water preheat section becomes cryogenic condensation water behind the sensible heat and dredges out from the 6th drain valve, the flow of the 6th drain valve control cryogenic condensation water is to guarantee condensed water and the new sufficient exchange heat of wind in the low pressure condensation water preheat section, and cryogenic condensation water inserts condensate pump by the 6th condensate pipe; The first order preheating of new wind is undertaken by air draft; Relaxation heat setting machine self just can be realized the cascade utilization of air draft and condensed water waste heat.(3) when the product arts demand uses low-pressure steam, open the 3rd stop valve, the 5th stop valve and the 7th stop valve, close first stop valve, second stop valve, the 4th stop valve, the 6th stop valve, the 8th stop valve and the 9th stop valve simultaneously; What this moment, heat exchanger used is the low-pressure steam of outer confession, the low pressure condensed water that heat exchanger produces is through the 5th stop valve, the 7th stop valve and low pressure drain valve are dredged out, the low pressure condensation water preheat section that enters new wind preheater through the 3rd condensed water reuse pipe is carried out second level preheating to new wind, in low pressure condensation water preheat section, the flash distillation of low pressure condensed water owing to dilatation, condensed water pressure descends, condensation rapidly behind flash steam and the new air heat-exchange release latent heat, the condensed water that descends of flash distillation and pressure and flash steam condensed water do not continue to become cryogenic condensation water behind the release sensible heat and dredge out from the 6th drain valve in low pressure condensation water preheat section, the flow of the 6th drain valve control cryogenic condensation water is to guarantee condensed water and the new sufficient exchange heat of wind in the low pressure condensation water preheat section, and cryogenic condensation water inserts condensate pump by the 6th condensate pipe; The first order preheating of new wind is undertaken by air draft; Relaxation heat setting machine self just can be realized the cascade utilization of air draft and condensed water waste heat.
As preferred version of the present utility model, the air draft control valve that is controlled by the PLC controller is installed on the exhaust duct of described relaxation heat setting machine, described drying chamber is equipped with humidity sensor, the holding wire of described humidity sensor inserts described PLC controller, the aperture that the moisture signal that described PLC controller provides according to described humidity sensor is regulated the air draft control valve.The moisture of product constantly is evaporated in the drying chamber, drying chamber relative humidity constantly raises, too high humidity will hinder the continuation evaporation of moisture on the product, must humid air be discharged outside the casing by means of air draft, the aperture of air draft control valve is too big then too much with the heat of air draft loss, the aperture of air draft control valve is too little, then the humidity in the drying chamber does not reach requirement, the humidity of the drying chamber that is provided by humidity sensor by the PLC controller is adjusted the aperture of air draft control valve, can realize accurate control, both guarantee product quality, reduced the air draft heat loss again.
As preferred version of the present utility model, stop valve and back stop valve before the front and back of described high pressure drain valve, middle pressure drain valve, low pressure drain valve, the 4th drain valve, the 5th drain valve and the 6th drain valve are in series with respectively are parallel with the bypass cutoff valve between the outlet of the inlet of described preceding stop valve and back stop valve.Before stop valve and back stop valve normally be in opening, when drain valve occur to damage need was changed, stop valve and back stop valve were opened the bypass cutoff valve before closing, and can change drain valve under the situation of breaks in production not; When heat exchanger uses the condensed water heat exchange, also can be by the aperture control flow of stop valve before regulating and back stop valve.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, accompanying drawing only provides reference and explanation usefulness, and is non-in order to restriction the utility model.
Fig. 1 is that the utility model classification is hydrophobic, the schematic diagram of air draft and condensed water sensible heat step reuse relaxation heat setting machine.
Among the figure: the S1. high-pressure steam pipe; S2. middle pressure steam pipe; S3. low pressure steam pipe; S4. main feed header; E1. heat exchanger; E2. new wind preheater; W0. total drain pipe; W1. high pressure drain pipe; W2. press drain pipe in; W3. low pressure drain pipe; R1. the first condensed water reuse pipe; R2. the second condensed water reuse pipe; R3. the 3rd condensed water reuse pipe; R4. the 4th condensed water reuse pipe; R5. the 5th condensed water reuse pipe; R6. the 6th condensate pipe; V1. first stop valve; V2. second stop valve; V3. the 3rd stop valve; V4. the 4th stop valve; V5. the 5th stop valve; V6. the 6th stop valve; V7. the 7th stop valve; V8. the 8th stop valve; V9. the 9th stop valve; Vk. air draft control valve; Vt1. high pressure drain valve; Vt2. press drain valve in; Vt3. low pressure drain valve; Vt4. the 4th drain valve; Vt5. the 5th drain valve; Vt6. the 6th drain valve; P1. condensate pump; F1. new wind; F2. pre-hot blast; F3. mix wind; F4. hot blast; F5. return air; F6. air draft; Fy. blower fan; H1. humidity sensor.
The specific embodiment
As shown in Figure 1, the utility model classification is hydrophobic, air draft and condensed water sensible heat step reuse relaxation heat setting machine, the cabinets cavity of relaxation heat setting machine is provided with blower fan Fy, heat exchanger E1 and product is carried out the drying chamber of shaping and drying, the inlet scoop of blower fan Fy communicates with wind-supplying mouth on the casing, the air outlet of blower fan Fy is aimed at the heat exchanger E1 of top, the air outlet of heat exchanger E1 top enters drying chamber, the drying chamber below is provided with return air inlet and exhaust outlet, exhaust outlet leads to outside the casing by exhaust duct, and return air inlet also communicates with the inlet scoop of blower fan Fy.
The air draft control valve Vk that is controlled by the PLC controller is installed on the exhaust duct of relaxation heat setting machine, drying chamber is equipped with humidity sensor H1, the holding wire of humidity sensor H1 inserts the PLC controller, the aperture that the moisture signal that the PLC controller provides according to humidity sensor H1 is regulated air draft control valve Vk.
The relaxation heat setting machine is provided with new wind preheater E2 outward, and new wind preheater E2 comprises air draft preheating section, low pressure condensation water preheat section, middle pressure condensed water preheating section and the high pressure condensation water preheat section of carrying out indirect heat exchange successively with new wind F1; New wind F1 enters new wind preheater E2 by the new wind inlet of air draft preheating section, the pre-hot blast outlet of air draft preheating section, low pressure condensation water preheat section, middle pressure condensed water preheating section and the high pressure condensation water preheat Duan Houcong high pressure condensation water preheat section of flowing through is successively flowed out, pre-hot blast outlet inserts the wind-supplying mouth of relaxation heat setting machine, and exhaust duct inserts the air draft inlet of air draft preheating section.
High-pressure steam pipe S1, middle pressure steam pipe S2 link to each other with main feed header S4 with the 3rd stop valve V3 by the first stop valve V1, the second stop valve V2 respectively with low pressure steam pipe S3, and main feed header S4 links to each other with the inlet of heat exchanger E1.Be connected in parallel to high pressure drain pipe W1, middle pressure drain pipe W2 and low pressure drain pipe W3 on total drain pipe W0 of heat exchanger E1, high pressure drain pipe W1 is provided with the 4th stop valve V4, and the rear of the 4th stop valve V4 is in series with high pressure drain valve Vt1; The middle drain pipe W2 that presses is provided with the 6th stop valve V6, presses drain valve Vt2 during the rear of the 6th stop valve V6 is in series with; Cross-over connection has the 5th stop valve V5 between the inlet of the 4th stop valve V4 and the 6th stop valve V6, and cross-over connection has the 7th stop valve V7 between the inlet of the 6th stop valve V6 and low pressure drain valve Vt3.
The outlet of high pressure drain valve Vt1 inserts the inlet of high pressure condensation water preheat section by the first condensed water reuse pipe R1, middle outlet of pressing drain valve Vt2 is by pressing the inlet of condensed water preheating section in the second condensed water reuse pipe R2 access, the inlet that the 3rd condensed water reuse pipe R3 inserts low pressure condensation water preheat section is passed through in the outlet of low pressure drain valve Vt3.
The outlet of high pressure condensation water preheat section is provided with the 4th drain valve Vt4, presses the inlet of condensed water preheating section during the outlet of the 4th drain valve Vt4 inserts by the 4th condensed water reuse pipe R4, on the 4th condensed water reuse pipe R4 the 8th stop valve V8 is installed.The outlet of middle pressure condensed water preheating section is provided with the 5th drain valve Vt5, and the outlet of the 5th drain valve Vt5 is equipped with the 9th stop valve V9 by the inlet that the 5th condensed water reuse pipe R5 inserts low pressure condensation water preheat section on the 5th condensed water reuse pipe R5; The outlet of low pressure condensation water preheat section is provided with the 6th drain valve Vt6, and the outlet of the 6th drain valve Vt6 inserts condensate pump P1 by the 6th condensate pipe R6.
Stop valve and back stop valve before the front and back of high pressure drain valve Vt1, middle pressure drain valve Vt2, low pressure drain valve Vt3, the 4th drain valve Vt4, the 5th drain valve Vt5 and the 6th drain valve Vt6 are in series with respectively are parallel with the bypass cutoff valve between the outlet of the inlet of preceding stop valve and back stop valve.Before stop valve and back stop valve normally be in opening, when drain valve occur to damage need was changed, stop valve and back stop valve were opened the bypass cutoff valve before closing, and can change drain valve under the situation of breaks in production not; When heat transmission equipment uses the condensed water heat exchange, also can be by the aperture control flow of stop valve before regulating and back stop valve.
The moisture of product constantly is evaporated in the drying chamber, and drying chamber relative humidity constantly raises, and a humid air part is discharged by exhaust duct as air draft F6, and another part participates in circulation as return air F5.The air draft preheating section that air draft F6 enters new wind preheater E2 carries out first order preheating to new wind F1, and the waste heat in the air draft is recovered, and new wind-warm syndrome degree is able to preliminary raising; New subsequently wind continues to be heated in low pressure condensation water preheat section, middle pressure condensed water preheating section and the high pressure condensation water preheat section of new wind preheater E2, after improving step by step, temperature becomes the wind-supplying mouth that pre-hot blast F2 is admitted to the relaxation heat setting machine, become after the return air F5 of pre-hot blast F2 and drying chamber mixes and mix wind F3, mixing wind F3 enters the inlet scoop of blower fan Fy, and the wind that blower fan Fy blows out becomes hot blast F4 and enters drying chamber after heat exchanger E1 heating.
When the product arts demand uses high steam, open the first stop valve V1, the 4th stop valve V4, the 8th stop valve V8 and the 9th stop valve V9, close the second stop valve V2, the 3rd stop valve V3, the 5th stop valve V5, the 6th stop valve V6 and the 7th stop valve V7 simultaneously; What this moment, heat exchanger E1 used is the high steam of outer confession, the high pressure condensed water that heat exchanger E1 produces is dredged out through the 4th stop valve V4 and high pressure drain valve Vt1, the high pressure condensation water preheat section that enters new wind preheater E2 through the first condensed water reuse pipe R1 is carried out fourth stage preheating to new wind, in high pressure condensation water preheat section, pressure was declined to become the middle condensed water of pressing after the high pressure condensed water discharged sensible heat to new wind; Should middlely press condensed water to dredge out by the 4th drain valve Vt4, in entering, the 4th condensed water reuse pipe R4 and the 8th stop valve V8 press the condensed water preheating section that new wind is carried out third level preheating then, at middle pressure condensed water preheating section, pressure was declined to become the low pressure condensed water after middle pressure condensed water discharged sensible heat to new wind, this low pressure condensed water is dredged out by the 5th drain valve Vt5, enter low pressure condensation water preheat section through the 5th condensed water reuse pipe R5 and the 9th stop valve V9 then new wind is carried out second level preheating, in low pressure condensation water preheat section, pressure descended after the low pressure condensed water discharged sensible heat to new wind, after dredging out from the 6th drain valve Vt6, P1 sends into condensation water recovery system by condensate pump, and the first order preheating of new wind F1 is undertaken by air draft.
When the product arts demand uses middle pressure steam, open the second stop valve V2, the 5th stop valve V5, the 6th stop valve V6 and the 9th stop valve V9, close the first stop valve V1, the 3rd stop valve V3, the 4th stop valve V4, the 7th stop valve V7 and the 8th stop valve V8 simultaneously; What this moment, heat exchanger E1 used is the middle pressure steam of outer confession, the middle pressure condensed water that heat exchanger E1 produces is dredged out through the 5th stop valve V5, the 6th stop valve V6 and middle pressure drain valve Vt2, the middle pressure condensed water preheating section that enters new wind preheater E2 through the second condensed water reuse pipe R2 carries out third level preheating to new wind, at middle pressure condensed water preheating section, pressure was declined to become the low pressure condensed water after middle pressure condensed water discharged sensible heat to new wind; This low pressure condensed water is dredged out by the 5th drain valve Vt5, enter low pressure condensation water preheat section through the 5th condensed water reuse pipe R5 and the 9th stop valve V9 then new wind is carried out second level preheating, in low pressure condensation water preheat section, pressure descended after the low pressure condensed water discharged sensible heat to new wind, after dredging out from the 6th drain valve Vt6, P1 sends into condensation water recovery system by condensate pump, and the first order preheating of new wind is undertaken by air draft.
When the product arts demand uses low-pressure steam, open the 3rd stop valve V3, the 5th stop valve V5 and the 7th stop valve V7, close the first stop valve V1, the second stop valve V2, the 4th stop valve V4, the 6th stop valve V6, the 8th stop valve V8 and the 9th stop valve V9 simultaneously; What this moment, heat exchanger E1 used is the low-pressure steam of outer confession, the low pressure condensed water that heat exchanger E1 produces is dredged out through the 5th stop valve V5, the 7th stop valve V7 and low pressure drain valve Vt3, the low pressure condensation water preheat section that enters new wind preheater E2 through the 3rd condensed water reuse pipe R3 is carried out second level preheating to new wind, in low pressure condensation water preheat section, pressure descended after the low pressure condensed water discharged sensible heat to new wind, after dredging out from the 6th drain valve Vt6, P1 sends into condensation water recovery system by condensate pump, and the first order preheating of new wind is undertaken by air draft; Relaxation heat setting machine self just can be realized the cascade utilization of air draft and condensed water waste heat.
The above only is the preferable possible embodiments of the utility model, and is non-so limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (5)
1. a classification is hydrophobic, air draft and condensed water sensible heat step reuse relaxation heat setting machine, the cabinets cavity of relaxation heat setting machine is provided with blower fan, heat exchanger reaches the drying chamber that product is carried out shaping and drying, the inlet scoop of described blower fan communicates with wind-supplying mouth on the casing, the air outlet of blower fan is aimed at the heat exchanger of top, the air outlet of described heat exchanger top enters described drying chamber, the drying chamber below is provided with return air inlet and exhaust outlet, described exhaust outlet leads to outside the casing by exhaust duct, described return air inlet also communicates with the inlet scoop of blower fan, it is characterized in that: also comprise new wind preheater, described new wind preheater comprises the air draft preheating section that carries out indirect heat exchange successively with new wind, low pressure condensation water preheat section, middle condensed water preheating section and the high pressure condensation water preheat section of pressing; New wind enters new wind preheater by the new wind inlet of air draft preheating section, the pre-hot blast outlet of air draft preheating section, low pressure condensation water preheat section, middle pressure condensed water preheating section and the high pressure condensation water preheat Duan Houcong high pressure condensation water preheat section of flowing through is successively flowed out, described pre-hot blast outlet inserts the described wind-supplying mouth of relaxation heat setting machine, and described exhaust duct inserts the air draft inlet of described air draft preheating section; Be connected in parallel to the high pressure drain pipe that can switch on total drain pipe of described heat exchanger, middle drain pipe and the low pressure drain pipe of pressing, described high pressure drain pipe, the middle pressure on drain pipe and the low pressure drain pipe is separately installed with the high pressure drain valve, middle drain valve and the low pressure drain valve of pressing, the outlet of described high pressure drain valve inserts the inlet of described high pressure condensation water preheat section by the first condensed water reuse pipe, press the outlet of drain valve to insert described middle inlet of pressing the condensed water preheating section by the second condensed water reuse pipe in described, the outlet of described low pressure drain valve inserts the inlet of described low pressure condensation water preheat section by the 3rd condensed water reuse pipe.
2. classification according to claim 1 is hydrophobic, air draft and condensed water sensible heat step reuse relaxation heat setting machine, it is characterized in that: the outlet of described high pressure condensation water preheat section is provided with the 4th drain valve, and the outlet of described the 4th drain valve inserts described middle inlet of pressing the condensed water preheating section by the 4th condensed water reuse pipe; Press the outlet of condensed water preheating section to be provided with the 5th drain valve in described, the outlet of described the 5th drain valve inserts the inlet of described low pressure condensation water preheat section by the 5th condensed water reuse pipe; The outlet of described low pressure condensation water preheat section is provided with the 6th drain valve, and the outlet of described the 6th drain valve inserts condensate pump by the 6th condensate pipe.
3. classification according to claim 1 is hydrophobic, air draft and condensed water sensible heat step reuse relaxation heat setting machine, it is characterized in that: high-pressure steam pipe, middle pressure steam pipe and low pressure steam pipe link to each other with main feed header by first stop valve, second stop valve and the 3rd stop valve respectively, and described main feed header links to each other with the inlet of described heat exchanger; Described high pressure drain pipe is provided with the 4th stop valve, and the rear of described the 4th stop valve is in series with described high pressure drain valve; Press drain pipe to be provided with the 6th stop valve in described, the rear of described the 6th stop valve is in series with the described middle drain valve of pressing; Cross-over connection has the 5th stop valve between the inlet of described the 4th stop valve and described the 6th stop valve, and cross-over connection has the 7th stop valve between the inlet of described the 6th stop valve and described low pressure drain valve; On described the 4th condensed water reuse pipe the 8th stop valve is installed, on described the 5th condensed water reuse pipe the 9th stop valve is installed.
4., air draft hydrophobic and condensed water sensible heat step reuse relaxation heat setting machine according to each described classification in the claim 1 to 3, it is characterized in that: the air draft control valve that is controlled by the PLC controller is installed on the exhaust duct of described relaxation heat setting machine, described drying chamber is equipped with humidity sensor, the holding wire of described humidity sensor inserts described PLC controller, the aperture that the moisture signal that described PLC controller provides according to described humidity sensor is regulated the air draft control valve.
5., air draft hydrophobic and condensed water sensible heat step reuse relaxation heat setting machine according to each described classification in the claim 1 to 3, it is characterized in that: stop valve and back stop valve before the front and back of described high pressure drain valve, middle pressure drain valve, low pressure drain valve, the 4th drain valve, the 5th drain valve and the 6th drain valve are in series with respectively are parallel with the bypass cutoff valve between the outlet of the inlet of described preceding stop valve and back stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036522 CN203096409U (en) | 2013-01-22 | 2013-01-22 | Relaxation heat setting machine achieving gradient recycling of sensible heat of drained water, exhaust air and condensed water by stages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036522 CN203096409U (en) | 2013-01-22 | 2013-01-22 | Relaxation heat setting machine achieving gradient recycling of sensible heat of drained water, exhaust air and condensed water by stages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096409U true CN203096409U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036522 Withdrawn - After Issue CN203096409U (en) | 2013-01-22 | 2013-01-22 | Relaxation heat setting machine achieving gradient recycling of sensible heat of drained water, exhaust air and condensed water by stages |
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| CN (1) | CN203096409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088506A (en) * | 2013-01-22 | 2013-05-08 | 亿恒节能科技江苏有限公司 | Classification dewatering and air exhaust and condensate water sensible heat gradient utilization relaxation heat setting machine |
-
2013
- 2013-01-22 CN CN 201320036522 patent/CN203096409U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088506A (en) * | 2013-01-22 | 2013-05-08 | 亿恒节能科技江苏有限公司 | Classification dewatering and air exhaust and condensate water sensible heat gradient utilization relaxation heat setting machine |
| CN103088506B (en) * | 2013-01-22 | 2015-08-19 | 亿恒节能科技江苏有限公司 | Classification is hydrophobic, air draft and condensed water sensible heat cascade utilization loosening heat setting machine |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130731 Effective date of abandoning: 20150819 |
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