CN203096290U - Constant-humidity classified heat transfer dewatering relaxation heat setting machine achieving gradient utilization of sensible heat of condensate water - Google Patents
Constant-humidity classified heat transfer dewatering relaxation heat setting machine achieving gradient utilization of sensible heat of condensate water Download PDFInfo
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- CN203096290U CN203096290U CN 201320036525 CN201320036525U CN203096290U CN 203096290 U CN203096290 U CN 203096290U CN 201320036525 CN201320036525 CN 201320036525 CN 201320036525 U CN201320036525 U CN 201320036525U CN 203096290 U CN203096290 U CN 203096290U
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Abstract
The utility model relates to a constant-humidity classified heat transfer dewatering relaxation heat setting machine achieving gradient utilization of sensible heat of condensate water. An air return opening below a drying chamber and an air supply opening in a box body are both communicated with an exhaust opening of a fan, an air outlet of the fan faces a heat exchanger above the air outlet, an air outlet above the heat exchanger enters the drying chamber, an exhaust control valve controlled by a PLC is arranged on an exhaust duct of the drying chamber, a humidity sensor is arranged in the drying chamber, and the PLC adjusts the opening degree of the exhaust control valve according to humidity signals provided by the humidity sensor. The heat exchanger comprises a high-pressure heat exchanger, a middle-pressure heat exchanger and a low-pressure heat exchanger, wherein the high-pressure heat exchanger, the middle-pressure heat exchanger and the low-pressure heat exchanger are arranged in an overlapping mode from top to bottom in sequence, the inlet of the high-pressure heat exchanger is connected with a steam supply main pipe, the outlet of the high-pressure heat exchanger is connected into the inlet of the middle-pressure heat exchanger through a high-pressure draining valve, the outlet of the middle-pressure heat exchanger is connected into the inlet of the low-pressure heat exchanger through a middle-pressure draining valve, and the outlet of the low-pressure heat exchanger is connected into a condensate pump through a low-pressure draining valve. The constant-humidity classified heat transfer dewatering relaxation heat setting machine achieving gradient utilization of the sensible heat of the condensate water can achieve full utilization of the waste heat of the condensate water, and is high in heating efficiency.
Description
Technical field
The utility model relates to a kind of relaxation heat setting machine, the hydrophobic and condensed water sensible heat cascade utilization relaxation heat setting machine of particularly a kind of constant humidity type classification heat exchange.
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 a kind of constant humidity type classification heat exchange hydrophobic and condensed water sensible heat cascade utilization 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 condensed water sensible heat cascade utilization relaxation heat setting machine of a kind of constant humidity type classification heat exchange of the present utility model, 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, 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; Described heat exchanger comprises stacked successively from top to bottom high pressure heat exchanger, middle pressure heat exchanger and low pressure heat exchanger, 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, in press drain valve outlet insert the inlet of described low pressure heat exchanger by the second condensed water reuse pipe, the low pressure heat exchanger exit inserts condensate pump by the low pressure drain valve.
With respect to prior art, the utility model has been obtained following beneficial effect: the moisture of product constantly is evaporated in (1) 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, reduce the air draft heat loss again; (2) 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 pressure condensed water is with the assurance condensed water and mix the sufficient exchange heat of wind in the middle pressure drain valve control; 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 discharge in the low pressure heat exchanger becomes the low pressure condensed water behind the sensible heat and dredges out from the low pressure drain valve, and the flow that the low pressure drain valve is controlled the low pressure condensed water is with the assurance condensed water and mix the sufficient exchange heat of wind; (3) 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 discharge in the low pressure heat exchanger becomes the low pressure condensed water behind the sensible heat and dredges out from the low pressure drain valve, and the flow that the low pressure drain valve is controlled the low pressure condensed water is with the assurance condensed water and mix the sufficient exchange heat of wind.(4) 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, and 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.(5) 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 (6) using high steam, new wind is earlier 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 by the higher low pressure heat exchanger heating of temperature, then by temperature higher 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.(7) 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 ℃; Reclaim the condensed water waste heat with flash distillation and compare, middle heat exchanger recovery high pressure condensed water sensible heat, the low pressure heat exchanger of pressing of the present utility model pressed the condensed water sensible heat in reclaiming, and the exhaust temperature of condensed water can be reduced to below 100 ℃, 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.Switching by valve, no matter product arts demand high pressure, middle pressure or low-pressure steam, heat exchanger is 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 when using high pressure or middle pressure steam.
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 is the schematic diagram of the hydrophobic and condensed water sensible heat cascade utilization relaxation heat setting machine of the utility model constant humidity type 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; 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; 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; Vk. air draft control valve; Vt1. high pressure drain valve; Vt2. press drain valve in; Vt3. low pressure drain valve; P1. condensate pump; F1. new wind; 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, hydrophobic and the condensed water sensible heat cascade utilization relaxation heat setting machine of the utility model constant humidity type classification heat exchange, the cabinets cavity of relaxation heat setting machine is provided with blower fan Fy, drying chamber and heat exchanger, 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 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, 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 outlet of condensate pump P1 inserts condensation water recovery system.
The return air F5 that new wind F1 enters wind-supplying mouth and drying chamber is mixed into and mixes wind F3, mixing wind F3 enters the inlet scoop of blower fan Fy, the wind that blower fan Fy blows out becomes hot blast F4 and enters drying chamber after the heat exchanger heating, humid air part in the drying chamber is discharged by exhaust duct as air draft, and another part participates in circulation as return air F5.
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.Mix wind F3 and blow out, when the product arts demand uses high steam, mix wind F3, 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 earlier through the higher low pressure heat exchanger E3 heating of excess temperature by blower fan Fy; When the product arts demand uses middle pressure steam, mix wind F3 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 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 to mix the sufficient exchange heat of wind.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 discharge in low pressure heat exchanger E3 becomes the low pressure condensed water behind the sensible heat and dredges out from low pressure drain valve Vt3, and the flow that low pressure drain valve Vt3 controls the low pressure condensed water is with the assurance condensed water and mix the sufficient exchange heat of wind.
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 discharge in low pressure heat exchanger E3 becomes the low pressure condensed water behind the sensible heat and dredges out from low pressure drain valve Vt3, and the flow that low pressure drain valve Vt3 controls the low pressure condensed water is with the assurance condensed water and mix the sufficient exchange heat of wind.
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, and the low pressure condensed water that low pressure heat exchanger E3 produces is directly dredged out through low pressure drain valve Vt3.
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. hydrophobic and condensed water sensible heat cascade utilization relaxation heat setting machine of constant humidity type classification heat exchange, 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: 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; Described heat exchanger comprises stacked successively from top to bottom high pressure heat exchanger, middle pressure heat exchanger and low pressure heat exchanger, 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, in press drain valve outlet insert the inlet of described low pressure heat exchanger by the second condensed water reuse pipe, the low pressure heat exchanger exit inserts condensate pump by the low pressure drain valve.
2. the hydrophobic and condensed water sensible heat cascade utilization relaxation heat setting machine of constant humidity type classification heat exchange according to claim 1, 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 condensed water sensible heat cascade utilization relaxation heat setting machine of constant humidity type classification heat exchange according to claim 1 and 2, 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 201320036525 CN203096290U (en) | 2013-01-22 | 2013-01-22 | Constant-humidity classified heat transfer dewatering relaxation heat setting machine achieving gradient utilization of sensible heat of condensate water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036525 CN203096290U (en) | 2013-01-22 | 2013-01-22 | Constant-humidity classified heat transfer dewatering relaxation heat setting machine achieving gradient utilization of sensible heat of condensate water |
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| Publication Number | Publication Date |
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| CN203096290U true CN203096290U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036525 Expired - Lifetime CN203096290U (en) | 2013-01-22 | 2013-01-22 | Constant-humidity classified heat transfer dewatering relaxation heat setting machine achieving gradient utilization of sensible heat of condensate water |
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| CN (1) | CN203096290U (en) |
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Address after: 650041 Yunnan city of Kunming Province Spring City Road No. 219 Building Room 903 Eastern Investment Patentee after: Yunnan Energy Investment Co.,Ltd. Address before: 650106, No. two, No. A3-505-1, Yunnan Science Park, Kunming hi tech Zone, Yunnan hi tech Zone, Yunnan Overseas Students Pioneer Park Patentee before: Yunnan Nengtou Uonone Technology Co.,Ltd. |
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