CN203080282U - Grade heat exchange draining and water-wind sensible heat gradient utilization return-air-free loosening heat setting machine - Google Patents
Grade heat exchange draining and water-wind sensible heat gradient utilization return-air-free loosening heat setting machine Download PDFInfo
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- CN203080282U CN203080282U CN 201320036427 CN201320036427U CN203080282U CN 203080282 U CN203080282 U CN 203080282U CN 201320036427 CN201320036427 CN 201320036427 CN 201320036427 U CN201320036427 U CN 201320036427U CN 203080282 U CN203080282 U CN 203080282U
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Abstract
The utility model relates to a grade heat exchange draining and water-wind sensible heat gradient utilization return-air-free loosening heat setting machine. An exhaust outlet is formed below a drying chamber and communicated with the outside of a tank body through an exhaust duct; an air supplementing port in the tank body is communicated with an exhaust inlet of a fan; an exhaust outlet of the fan faces a heat exchanger above; an air inlet above the heat exchanger extends into the drying chamber; an inlet of a high-pressure heat exchanger is connected with a main steam supply pipe, an outlet of the high-pressure heat exchanger is connected with an inlet of a medium-pressure heat exchanger through a high-pressure drain valve, an outlet of the medium-pressure heat exchanger is connected with an inlet of a low-pressure heat exchanger through a medium-pressure drain valve, an outlet of the low-pressure heat exchanger is connected with a condensate pump through a low-pressure drain valve, an outlet of the condensate pump is connected with a fresh air preheater, and a preheat air outlet of a fresh air preheater is connected with an air supplementing port of the loosening heat setting machine; and exhausted air and low-pressure condensed water of the loosening heat setting machine are connected with the fresh air preheater and exchange heat with fresh air. The setting machine can fully utilize waste heat of the exhausted air and the low-pressure condensed water and has high thermal efficiency.
Description
Technical field
The utility model relates to a kind of relaxation heat setting machine, and the hydrophobic and water wind sensible heat cascade utilization of particularly a kind of classification heat exchange does not have return air 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 the hydrophobic and water wind sensible heat cascade utilization of a kind of classification heat exchange not have return air 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, hydrophobic and the water wind sensible heat cascade utilization of a kind of classification heat exchange of the present utility model does not have return air 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 exhaust outlet, described exhaust outlet leads to outside the casing by exhaust duct, also comprise new wind preheater, the below of described new wind preheater is provided with new wind inlet, the top of new wind preheater is provided with pre-hot blast outlet, and the Lower Half that the exhaust duct of relaxation heat setting machine inserts new wind preheater makes air draft and new wind carry out indirect heat exchange; Described heat exchanger comprises stacked successively from top to bottom high pressure heat exchanger, middle heat exchanger and the low pressure heat exchanger of pressing, the inlet of described high pressure heat exchanger links to each other with main feed header, the outlet of described high pressure heat exchanger inserts the high pressure drain valve, the outlet of described high pressure drain valve inserts described middle inlet of pressing heat exchanger by the first condensed water reuse pipe, during inserting, the outlet of middle pressure heat exchanger presses drain valve, the outlet of middle pressure drain valve inserts the inlet of described low pressure heat exchanger by the second condensed water reuse pipe, the low pressure heat exchanger exit inserts the inlet of condensate pump by the low pressure drain valve, the first half that the condensed water delivery side of pump inserts described new wind preheater makes low pressure condensed water and new wind carry out indirect heat exchange, and the pre-hot blast outlet of described new wind preheater inserts the described wind-supplying mouth of relaxation heat setting machine.
With respect to prior art, the utility model has been obtained following beneficial effect: (1) drying chamber does not have return air and participates in circulation, has avoided the incrustation of return air entrainment heat exchanger surface in setting machine, has increased heat exchange efficiency, has prolonged the time between overhauls(TBO); (2) air draft of the relaxation heat setting machine Lower Half that inserts new wind preheater is carried out preliminary 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; (3) still there is the big temperature difference in the low pressure condensed water of low pressure heat exchanger discharging with the preliminary new wind of preheating, send into the first half of new wind preheater by condensate pump, the new wind of preliminary preheating is carried out preheating once more, sensible heat in the low pressure condensed water is recovered, send in the relaxation heat setting machine after new wind-warm syndrome degree is improved once more, reduced the steam consumption of heat exchanger in the relaxation heat setting machine; (4) traditional single heat exchanger is divided into stacked successively from top to bottom high pressure heat exchanger, middle pressure heat exchanger and low pressure heat exchanger; When product arts demand high steam, only need be to high pressure heat exchanger steam supply wherein, high steam becomes the high pressure condensed water discharge latent heat in high pressure heat exchanger after, press heat exchanger in entering after the high pressure condensed water is dredged out by the high pressure drain valve, in the flash distillation of middle pressure heat exchanger mesohigh condensed water owing to dilatation, condensed water pressure descends, condensation rapidly behind flash steam and the air heat exchange release latent heat, the condensed water of the condensed water that descends of flash distillation and pressure and time condensation does not continue to discharge in middle pressure heat exchanger and presses condensed water therefrom to press drain valve to dredge out in becoming behind the sensible heat, and the flow of pressing condensed water in the middle pressure drain valve control is to guarantee condensed water and the sufficient exchange heat of hot blast in advance; Middle pressure condensed water is dredged out by middle pressure drain valve and is entered the low pressure heat exchanger, in the low pressure heat exchanger, the flash distillation once more of middle pressure condensed water owing to dilatation, condensed water pressure further descends, condensation rapidly behind flash steam and the air heat exchange release latent heat, the condensed water of the condensed water that further descends of flash distillation and pressure and three condensations does not continue to become the low pressure condensed water behind the release sensible heat and dredges out from the low pressure drain valve in the low pressure heat exchanger, the flow of low pressure drain valve control low pressure condensed water is to guarantee condensed water and the pre-sufficient exchange heat of hot blast, the low pressure condensed water is sent into new wind preheater by condensate pump again and is continued to discharge sensible heat, the condensate temperature of the final discharging of relaxation heat setting machine is very low, and waste heat is fully reclaimed; (5) when the product arts demand uses middle pressure steam, high pressure heat exchanger and middle pressure heat exchanger all use the middle pressure steam of outer confession, press drain valve to enter the low pressure heat exchanger in the middle pressure condensed water warp that high pressure heat exchanger and middle pressure heat exchanger produce, in the low pressure heat exchanger, the flash distillation of middle pressure condensed water owing to dilatation, condensed water pressure descends, condensation rapidly behind the flash steam release latent heat, the condensed water of the condensed water that descends of flash distillation and pressure and time condensation does not continue to become the low pressure condensed water behind the release sensible heat and dredges out from the low pressure drain valve in the low pressure heat exchanger, the flow of low pressure drain valve control low pressure condensed water is to guarantee condensed water and the pre-sufficient exchange heat of hot blast, and the low pressure condensed water is sent into new wind preheater by condensate pump again and continued to discharge sensible heat.(6) when the product arts demand uses low-pressure steam, high pressure heat exchanger, middle pressure heat exchanger and low pressure heat exchanger all use the low-pressure steam of outer confession, the condensed water that high pressure heat exchanger, middle pressure heat exchanger and low pressure heat exchanger produce all enters condensate pump through the low pressure drain valve, sends into new wind preheater by condensate pump again and continues to discharge sensible heat.(7) when product arts demand high steam, middle heat exchanger and the low pressure heat exchanger of pressing need not to use outer steam supply, the middle pressure condensed water that high pressure condensed water that high pressure heat exchanger produces and middle pressure heat exchanger produce need not to rely on external user to use, relaxation heat setting machine self has promptly been realized the cascade utilization of condensed water waste heat, has avoided the discharging waste of condensed water waste heat.In like manner, when product arts demand middle pressure steam, the low pressure heat exchanger need not to use outer steam supply, the middle pressure condensed water that high pressure heat exchanger and middle pressure heat exchanger produce need not to rely on external user to use, relaxation heat setting machine self has promptly been realized making full use of of condensed water waste heat, has avoided the discharging waste of condensed water waste heat.When (8) using high steam, new wind is earlier 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 low pressure heat exchanger heating of temperature, then by the higher middle pressure heat exchanger heating of temperature, at last by the highest high pressure heat exchanger heating of temperature; When using middle pressure steam, new wind is earlier 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 low pressure heat exchanger heating of temperature, then by temperature higher middle pressure heat exchanger and high pressure heat exchanger heating; When using low-pressure steam, new wind is earlier 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 low pressure heat exchanger of temperature, middle pressure heat exchanger and high pressure heat exchanger heating; 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.(9) 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, press heat exchanger to reclaim in of the present utility model and press condensed water sensible heat, new wind preheater to reclaim low pressure condensed water sensible heat in high pressure condensed water sensible heat, the recovery of low pressure heat exchanger, the exhaust temperature of condensed water can be reduced to below 70 ℃, and the heat energy utilization rate is able to further raising.
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; Described main feed header directly links to each other with the inlet of described high pressure heat exchanger, links to each other, links to each other with the inlet of described low pressure heat exchanger by the 5th stop valve with the inlet of described middle pressure heat exchanger by the 4th stop valve; The described first condensed water reuse pipe is provided with the 6th stop valve, and the outlet of described the 6th stop valve also links to each other with the described middle inlet of heat exchanger of pressing; The described second condensed water reuse pipe is provided with the 7th stop valve, and the outlet of described the 7th stop valve also links to each other with the inlet of described low pressure heat exchanger; The outlet of described high pressure heat exchanger is provided with the 8th stop valve, and the rear of described the 8th stop valve is in series with described high pressure drain valve; Press the outlet of heat exchanger to be provided with the tenth stop valve in described, the rear of described the tenth stop valve is in series with the described middle drain valve of pressing; Cross-over connection has the 9th stop valve between the inlet of described the 8th stop valve and described the tenth stop valve, and cross-over connection has the 11 stop valve between the inlet of described the tenth stop valve and described low pressure drain valve.(1) when the product arts demand uses high steam, open first stop valve, the 6th stop valve, the 7th stop valve, the 8th stop valve and the tenth stop valve, close second stop valve, the 3rd stop valve, the 4th stop valve, the 5th stop valve, the 9th stop valve and the 11 stop valve simultaneously; What this moment, high pressure heat exchanger used is the high steam of outer confession, the condensed water of high pressure heat exchanger is pressed heat exchanger in the 8th stop valve and high pressure drain valve enter, the middle condensed water of heat exchanger of pressing enters the low pressure heat exchanger through the tenth stop valve and middle pressure drain valve, and the condensed water that the low pressure heat exchanger produces enters condensate pump through the low pressure drain valve.(2) when the product arts demand uses middle pressure steam, open second stop valve, the 4th stop valve, the 7th stop valve, the 9th stop valve and the tenth stop valve, close first stop valve simultaneously, the 3rd stop valve, the 5th stop valve, the 6th stop valve, the 8th stop valve and the 11 stop valve, this moment, high pressure heat exchanger and middle pressure heat exchanger all used the middle pressure steam of outer confession, the condensed water that high pressure heat exchanger produces is through the 9th stop valve, the tenth stop valve and middle pressure drain valve enter the low pressure heat exchanger, middle condensed water of pressing heat exchanger to produce enters the low pressure heat exchanger through the tenth stop valve and middle pressure drain valve, and the condensed water that the low pressure heat exchanger produces enters condensate pump through the low pressure drain valve.(3) when the product arts demand uses low-pressure steam, open the 3rd stop valve, the 4th stop valve, the 5th stop valve, the 9th stop valve and the 11 stop valve, close first stop valve simultaneously, second stop valve, the 6th stop valve, the 7th stop valve, the 8th stop valve and the tenth stop valve, this moment high pressure heat exchanger, middle low-pressure steam of pressing heat exchanger and low pressure heat exchanger all to use outer confession, the condensed water that high pressure heat exchanger produces is through the 9th stop valve, the 11 stop valve and low pressure drain valve enter condensate pump, middle condensed water of pressing heat exchanger to produce enters condensate pump through the 11 stop valve and low pressure drain valve, and the condensed water that the low pressure heat exchanger produces directly enters condensate pump through the low pressure drain valve.By the switching of valve, no matter product arts demand high pressure, middle pressure or low-pressure steam, heat exchanger are that gross area uses, drain valve is all in design conditions work, and relaxation heat setting machine self just can be realized the cascade utilization of condensed water waste heat.
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 and low pressure 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.Preceding stop valve and back stop valve normally are in opening, when drain valve appearance damage needs to change, stop valve and back stop valve before closing, open the bypass cutoff valve, can under the situation of breaks in production not, change drain valve, 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 does not have the schematic diagram of return air relaxation heat setting machine for the hydrophobic and water wind sensible heat cascade utilization of the utility model classification heat exchange.
Among the figure: the S1. high-pressure steam pipe; S2. middle pressure steam pipe; S3. low pressure steam pipe; S4. main feed header; E1. high pressure heat exchanger; E2. press heat exchanger in; E3. low pressure heat exchanger; E4. new wind preheater; W1. high pressure drain pipe; W2. press drain pipe in; W3. low pressure drain pipe; W4. the first condensed water reuse pipe; W5. the second condensed water reuse pipe; W6. cryogenic condensation water 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; V10. the tenth stop valve; V11. the 11 stop valve; Vt1. high pressure drain valve; Vt2. press drain valve in; Vt3. low pressure drain valve; P1. condensate pump; F1. new wind; F2. pre-hot blast; F4. hot blast; F6. air draft; Fy. blower fan.
The specific embodiment
As shown in Figure 1, hydrophobic and the water wind sensible heat cascade utilization of the utility model classification heat exchange does not have return air relaxation heat setting machine, the cabinets cavity of relaxation heat setting machine is provided with blower fan Fy, drying chamber and heat exchanger, casing is provided with new wind preheater E4 outward, the inlet scoop of blower fan Fy communicates with wind-supplying mouth on the casing, and the air outlet of blower fan Fy is aimed at the heat exchanger of top, and the air outlet of heat exchanger top enters drying chamber, the drying chamber below is provided with exhaust outlet, and exhaust outlet leads to outside the casing by exhaust duct.
The Lower Half that exhaust duct inserts new wind preheater E4 makes air draft F6 and new wind F1 carry out discharging behind the indirect heat exchange.The first half that the outlet of condensate pump P1 inserts new wind preheater E4 makes low pressure condensed water and new wind carry out further indirect heat exchange, the below of new wind preheater E4 is provided with new wind inlet, the top of new wind preheater E4 is provided with pre-hot blast outlet, and pre-hot blast outlet inserts the wind-supplying mouth of relaxation heat setting machine.The low pressure condensation water flow passage of the air draft runner of Lower Half and the first half is not connected among the new wind preheater E4, and the new distinguished and admirable road of the new distinguished and admirable road of Lower Half and the first half connects among the new wind preheater E4.
The air draft F6 of relaxation heat setting machine inserts the Lower Half of new wind preheater E4 new wind F1 is carried out preliminary preheating, and the waste heat among the air draft F6 is recovered, and new wind F1 temperature is able to preliminary raising; Then the low pressure condensed water of sending here from condensate pump P1 carries out preheating once more to new wind and makes it to become pre-hot blast F2, sensible heat in the low pressure condensed water is recovered the back and discharges by cryogenic condensation water pipe W6, sends into the wind-supplying mouth of relaxation heat setting machine after new wind-warm syndrome degree is improved once more.The pre-hot blast F2 that enters from wind-supplying mouth 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 the heat exchanger heating, and the humid air in the drying chamber is discharged by exhaust duct.
Heat exchanger comprises from top to bottom stacked successively high pressure heat exchanger E1, middle pressure heat exchanger E2 and low pressure heat exchanger E3.Pre-hot blast is blown out by blower fan Fy, and when the product arts demand used high steam, pre-hot blast was earlier through the higher low pressure heat exchanger E3 heating of excess temperature, then by the higher middle pressure heat exchanger E2 heating of temperature, at last by the highest high pressure heat exchanger E1 heating of temperature; When the product arts demand used middle pressure steam, pre-hot blast was earlier through the higher low pressure heat exchanger E3 heating of excess temperature, then by temperature higher middle pressure heat exchanger E2 and high pressure heat exchanger E1 heating.In this process, the temperature of air improves step by step, also is to increase gradually to the vapor (steam) temperature of its heating.
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.Main feed header S4 directly links to each other with the inlet of high pressure heat exchanger E1, links to each other with the inlet of middle pressure heat exchanger E2, links to each other with the inlet of low pressure heat exchanger E3 by the 5th stop valve V5 by the 4th stop valve V4.
Be in series with the 8th stop valve V8 and high pressure drain valve Vt1 successively on the high pressure drain pipe W1 of high pressure heat exchanger E1 outlet, press the inlet of heat exchanger E2 during the outlet of high pressure drain valve Vt1 inserts by the first condensed water reuse pipe W4 and the 6th stop valve V6.
Be in series with the tenth stop valve V10 and middle pressure drain valve Vt2 successively on the middle middle pressure drain pipe W2 that presses heat exchanger E2 to export, the outlet of middle pressure drain valve Vt2 inserts the inlet of low pressure heat exchanger E3 by the second condensed water reuse pipe W5 and the 7th stop valve V7.
The low pressure drain pipe W3 of low pressure heat exchanger E3 outlet is provided with low pressure drain valve Vt3, and the outlet of low pressure drain valve Vt3 inserts the inlet of condensate pump P1.Cross-over connection has the 9th stop valve V9 between the inlet of the 8th stop valve V8 and the tenth stop valve V10, and cross-over connection has the 11 stop valve V11 between the inlet of the tenth stop valve V10 and low pressure drain valve Vt3.
Stop valve and back stop valve before the front and back of high pressure drain valve Vt1, middle pressure drain valve Vt2 and low pressure drain valve Vt3 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.
When the product arts demand uses high steam, open the first stop valve V1, the 6th stop valve V6, the 7th stop valve V7, the 8th stop valve V8 and the tenth stop valve V10, close the second stop valve V2, the 3rd stop valve V3, the 4th stop valve V4, the 5th stop valve V5, the 9th stop valve V9 and the 11 stop valve V11 simultaneously; What this moment, high pressure heat exchanger E1 used is the high steam of outer confession, and the high pressure condensed water of high pressure heat exchanger E1 is dredged out through the 8th stop valve V8 and high pressure drain valve Vt1, again pressure heat exchanger E2 in the first condensed water reuse pipe W4 and the 6th stop valve V6 enter.In the flash distillation of middle pressure heat exchanger E2 mesohigh condensed water owing to dilatation, condensed water pressure descends, condensation rapidly behind flash steam and the air heat exchange release latent heat, the condensed water of the condensed water of flash distillation and pressure decline and time condensation does not become the middle condensed water of pressing continue to discharge sensible heat in middle pressure heat exchanger E2 after, the middle condensed water of pressing is dredged out through the tenth stop valve V10 and middle pressure drain valve Vt2, enter low pressure heat exchanger E3 through the second condensed water reuse pipe W5 and the 7th stop valve V7 again, the flow of pressing condensed water in the middle pressure drain valve Vt2 control is to guarantee condensed water and the pre-sufficient exchange heat of hot blast.In low pressure heat exchanger E3, the flash distillation once more of middle pressure condensed water owing to dilatation, condensed water pressure further descends, condensation rapidly behind flash steam and the air heat exchange release latent heat, the condensed water of the condensed water that further descends of flash distillation and pressure and three condensations does not continue to become the low pressure condensed water behind the release sensible heat and dredges out from low pressure drain valve Vt3 in low pressure heat exchanger E3, the flow of low pressure drain valve Vt3 control low pressure condensed water is to guarantee condensed water and the pre-sufficient exchange heat of hot blast, the low pressure condensed water is sent into new wind preheater E4 by condensate pump P1 and is continued to discharge sensible heat, the condensate temperature of the final discharging of relaxation heat setting machine is very low, and waste heat is fully reclaimed.
When the product arts demand uses middle pressure steam, open the second stop valve V2, the 4th stop valve V4, the 7th stop valve V7, the 9th stop valve V9 and the tenth stop valve V10, close the first stop valve V1, the 3rd stop valve V3, the 5th stop valve V5, the 6th stop valve V6, the 8th stop valve V8 and the 11 stop valve V11 simultaneously, this moment, high pressure heat exchanger E1 and middle pressure heat exchanger E2 all used the middle pressure steam of outer confession.The middle pressure condensed water that high pressure heat exchanger E1 produces is after the 9th stop valve V9 discharges, dredge out through the tenth stop valve V10 and middle pressure drain valve Vt2 jointly with the middle pressure condensed water that middle pressure heat exchanger E2 produces, the middle condensed water of pressing enters low pressure heat exchanger E3 through the second condensed water reuse pipe W5 and the 7th stop valve V7 again, in low pressure heat exchanger E3, the flash distillation of middle pressure condensed water owing to dilatation, condensed water pressure descends, condensation rapidly behind flash steam and the air heat exchange release latent heat, the condensed water of the condensed water that descends of flash distillation and pressure and time condensation does not continue to become the low pressure condensed water behind the release sensible heat and dredges out from low pressure drain valve Vt3 in low pressure heat exchanger E3, the flow of low pressure drain valve Vt3 control low pressure condensed water is to guarantee condensed water and the pre-sufficient exchange heat of hot blast, and the low pressure condensed water is sent into new wind preheater E4 by condensate pump P1 and continued to discharge sensible heat.
When the product arts demand uses low-pressure steam, open the 3rd stop valve V3, the 4th stop valve V4, the 5th stop valve V5, the 9th stop valve V9 and the 11 stop valve V11, close the first stop valve V1, the second stop valve V2, the 6th stop valve V6, the 7th stop valve V7, the 8th stop valve V8 and the tenth stop valve V10 simultaneously, high pressure heat exchanger E1, middle pressure heat exchanger E2 and low pressure heat exchanger E3 all use the low-pressure steam of outer confession at this moment.The low pressure condensed water that high pressure heat exchanger E1 produces is dredged out through the 9th stop valve V9, the 11 stop valve V11 and low pressure drain valve Vt3, middle low pressure condensed water of pressing heat exchanger E2 to produce is dredged out through the 11 stop valve V11 and low pressure drain valve Vt3, the low pressure condensed water that low pressure heat exchanger E3 produces is directly dredged out through low pressure drain valve Vt3, the low pressure condensed water is discharged by cryogenic condensation water pipe W6 after sending into new wind preheater E4 continuation release sensible heat by condensate pump P1.
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 (3)
1. the hydrophobic and water wind sensible heat cascade utilization of a classification heat exchange does not have return air 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 exhaust outlet, described exhaust outlet leads to outside the casing by exhaust duct, it is characterized in that: also comprise new wind preheater, the below of described new wind preheater is provided with new wind inlet, the top of new wind preheater is provided with pre-hot blast outlet, and the Lower Half that the exhaust duct of relaxation heat setting machine inserts new wind preheater makes air draft and new wind carry out indirect heat exchange; Described heat exchanger comprises stacked successively from top to bottom high pressure heat exchanger, middle heat exchanger and the low pressure heat exchanger of pressing, the inlet of described high pressure heat exchanger links to each other with main feed header, the outlet of described high pressure heat exchanger inserts the high pressure drain valve, the outlet of described high pressure drain valve inserts described middle inlet of pressing heat exchanger by the first condensed water reuse pipe, during inserting, the outlet of middle pressure heat exchanger presses drain valve, the outlet of middle pressure drain valve inserts the inlet of described low pressure heat exchanger by the second condensed water reuse pipe, the low pressure heat exchanger exit inserts the inlet of condensate pump by the low pressure drain valve, the first half that the condensed water delivery side of pump inserts described new wind preheater makes low pressure condensed water and new wind carry out indirect heat exchange, and the pre-hot blast outlet of described new wind preheater inserts the described wind-supplying mouth of relaxation heat setting machine.
2. the hydrophobic and water wind sensible heat cascade utilization of classification heat exchange according to claim 1 does not have return air relaxation heat setting machine, and 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; Described main feed header directly links to each other with the inlet of described high pressure heat exchanger, links to each other, links to each other with the inlet of described low pressure heat exchanger by the 5th stop valve with the inlet of described middle pressure heat exchanger by the 4th stop valve; The described first condensed water reuse pipe is provided with the 6th stop valve, and the outlet of described the 6th stop valve also links to each other with the described middle inlet of heat exchanger of pressing; The described second condensed water reuse pipe is provided with the 7th stop valve, and the outlet of described the 7th stop valve also links to each other with the inlet of described low pressure heat exchanger; The outlet of described high pressure heat exchanger is provided with the 8th stop valve, and the rear of described the 8th stop valve is in series with described high pressure drain valve; Press the outlet of heat exchanger to be provided with the tenth stop valve in described, the rear of described the tenth stop valve is in series with the described middle drain valve of pressing; Cross-over connection has the 9th stop valve between the inlet of described the 8th stop valve and described the tenth stop valve, and cross-over connection has the 11 stop valve between the inlet of described the tenth stop valve and described low pressure drain valve.
3. the hydrophobic and water wind sensible heat cascade utilization of classification heat exchange according to claim 1 and 2 does not have return air relaxation heat setting machine, 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 and low pressure 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 201320036427 CN203080282U (en) | 2013-01-22 | 2013-01-22 | Grade heat exchange draining and water-wind sensible heat gradient utilization return-air-free loosening heat setting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036427 CN203080282U (en) | 2013-01-22 | 2013-01-22 | Grade heat exchange draining and water-wind sensible heat gradient utilization return-air-free loosening heat setting machine |
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| Publication Number | Publication Date |
|---|---|
| CN203080282U true CN203080282U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036427 Withdrawn - After Issue CN203080282U (en) | 2013-01-22 | 2013-01-22 | Grade heat exchange draining and water-wind sensible heat gradient utilization return-air-free loosening heat setting machine |
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| Country | Link |
|---|---|
| CN (1) | CN203080282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074718A (en) * | 2013-01-22 | 2013-05-01 | 亿恒节能科技江苏有限公司 | Relaxation heat setting machine with graded heat-exchange water drainage without air return and water-air sensible-heat gradient utilization |
| CN104088110A (en) * | 2014-07-18 | 2014-10-08 | 苏州市宏达集团有限公司 | Steam setting machine |
-
2013
- 2013-01-22 CN CN 201320036427 patent/CN203080282U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074718A (en) * | 2013-01-22 | 2013-05-01 | 亿恒节能科技江苏有限公司 | Relaxation heat setting machine with graded heat-exchange water drainage without air return and water-air sensible-heat gradient utilization |
| CN103074718B (en) * | 2013-01-22 | 2015-05-20 | 亿恒节能科技江苏有限公司 | Relaxation heat setting machine with graded heat-exchange water drainage without air return and water-air sensible-heat gradient utilization |
| CN104088110A (en) * | 2014-07-18 | 2014-10-08 | 苏州市宏达集团有限公司 | Steam setting machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20150520 |
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| RGAV | Abandon patent right to avoid regrant |