CN203080168U - Constant humidity condensate water hierarchical flash evaporation and low-temperature sensible heat recovery slack heat-setting machine - Google Patents
Constant humidity condensate water hierarchical flash evaporation and low-temperature sensible heat recovery slack heat-setting machine Download PDFInfo
- Publication number
- CN203080168U CN203080168U CN2013200507661U CN201320050766U CN203080168U CN 203080168 U CN203080168 U CN 203080168U CN 2013200507661 U CN2013200507661 U CN 2013200507661U CN 201320050766 U CN201320050766 U CN 201320050766U CN 203080168 U CN203080168 U CN 203080168U
- Authority
- CN
- China
- Prior art keywords
- pressure
- heat exchanger
- stop valve
- valve
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model relates to a constant humidity condensate water hierarchical flash evaporation and low-temperature sensible heat recovery slack heat-setting machine. A heat exchanger comprises a high-pressure heat exchanger, a medium-pressure heat exchanger and a low-pressure heat exchanger, wherein the high-pressure heat exchanger, the medium-pressure heat exchanger and the low-pressure heat exchanger are sequentially overlaid from top to bottom. An inlet of the high-pressure heat exchanger is connected with a steam supply main pipe. An outlet of the high-pressure heat exchanger is connected into a medium-pressure flash tank through a high-pressure draining valve. A medium-pressure constant pressure overflow valve is arranged at the top of the medium-pressure heat exchanger. An outlet of the medium-pressure constant pressure overflow valve is connected into an inlet of the medium-pressure heat exchanger through a medium-pressure flash steam pipe. An outlet of the medium-pressure heat exchanger is connected into a low-pressure flash tank through a medium-pressure draining valve. A lower-pressure constant pressure overflow valve is arranged at the top of the lower-pressure flash tank. The low-pressure constant pressure overflow valve is connected into the low-pressure heat exchanger through a low-pressure flash steam pipe. An outlet of the lower-pressure heat exchanger is connected into a condensate pump through a lower-pressure draining valve. The outlet of the condensate pump is connected into a fresh air preheater. A preheating air outlet of the fresh air preheater is connected into an air supplement port of the slack heat-setting machine. The phenomenon that the heat-setting machine can take full advantage of waste heat of condensate water is achieved, and heat efficiency is high.
Description
Technical field
The utility model relates to a kind of relaxation heat setting machine, and particularly a kind of constant humidity, condensed water classification flash distillation and low temperature sensible heat reclaim the 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 a kind of constant humidity, condensed water classification flash distillation and low temperature sensible heat to reclaim the 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 constant humidity of the present utility model, condensed water classification flash distillation and low temperature sensible heat reclaim the 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 communicates with the inlet scoop of blower fan, also comprise new wind preheater, the below of described new wind preheater is provided with new wind inlet, and the top of new wind preheater is provided with pre-hot blast outlet; 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, during inserting by the high pressure drain valve, the outlet of described high pressure heat exchanger presses the condensing water inlet of flash tank, the middle top of flash tank of pressing is provided with middle compression set pressurized overflow valve, the outlet of middle compression set pressurized overflow valve inserts described middle inlet of pressing heat exchanger by middle pressure flash distillation steam pipe, middle condensing water inlet of pressing the outlet of heat exchanger by middle pressure drain valve access low pressure flash chamber, the top of low pressure flash chamber is provided with low pressure level pressure overflow valve, the outlet of low pressure level pressure overflow valve inserts the inlet of described low pressure heat exchanger by the low pressure flash steam pipe, the low pressure heat exchanger exit inserts the inlet of condensate pump by the low pressure drain valve, the condensed water delivery side of pump inserts described new wind preheater makes 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: there is the big temperature difference in the low pressure condensed water of (1) low pressure flash chamber and the discharging of low pressure heat exchanger with new wind, send into new wind preheater by condensate pump new wind is carried out preheating, 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, reduced the steam consumption of heat exchanger in the relaxation heat setting machine; (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, the high pressure condensed water is dredged out by the high pressure drain valve and is pressed in entering the flash tank flash distillation to press flash steam in becoming, during entering by middle pressure flash distillation steam pipe, middle pressure flash steam press heat exchanger to continue to become the middle condensed water of pressing behind the release latent heat, in press condensed water to dredge out to enter the low pressure flash chamber flash distillation and become low pressure flash vapour by middle pressure drain valve, low pressure flash vapour enters by the low pressure flash steam pipe becomes the low pressure condensed water after the low pressure heat exchanger discharges latent heat once more, the low pressure condensed water is sent into new wind preheater by condensate pump 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; (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 low pressure flash chamber in the condensed water warp that high pressure heat exchanger and middle pressure heat exchanger produce, the low pressure flash vapour that low pressure flash chamber produces enters the low pressure heat exchanger.(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, middle middle pressure and low pressure flash vapour of pressing flash tank and low pressure flash chamber to produce need not to rely on external user to use, relaxation heat setting machine self has promptly been realized the cascade utilization of flash distillation waste heat, has avoided the emptying waste of middle pressure and low pressure flash vapour.In like manner, when product arts demand middle pressure steam, the low pressure heat exchanger need not to use outer steam supply, and the low pressure flash vapour that low pressure flash chamber produces uses for the low pressure heat exchanger of relaxation heat setting machine self.When (6) using high steam, new wind is earlier through the high slightly low pressure condensation water preheat of excess 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 high slightly low pressure condensation water preheat of excess 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 high slightly low pressure condensation water preheat of excess 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.
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; Press the flash distillation steam pipe to be provided with the 6th stop valve in described, the outlet of described the 6th stop valve also links to each other with the described middle inlet of heat exchanger of pressing; Described low pressure flash steam 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 flash tank in the 8th stop valve and high pressure drain valve enter, during entering, middle middle pressure flash steam of pressing flash tank to produce presses heat exchanger, the middle condensed water of heat exchanger of pressing enters low pressure flash chamber through the tenth stop valve and middle pressure drain valve, and the low pressure flash vapour that low pressure flash chamber produces enters the low pressure heat exchanger.(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 low pressure flash chamber, middle condensed water of pressing heat exchanger to produce enters low pressure flash chamber through the tenth stop valve and middle pressure drain valve, and the low pressure flash vapour that low pressure flash chamber produces enters the low pressure heat exchanger.(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, 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, the condensation-water drain of described middle pressure flash tank bottom is equipped with presses the pressure of flash tank to regulate the preceding pressure automatic regulating valve of aperture automatically in the basis, the outlet of described preceding pressure automatic regulating valve inserts the inlet of described low pressure flash chamber.The preceding automatic aperture of regulating of the pressure height of pressing flash tank in the automatic regulating valve basis of pressing, flow between middle pressure flash tank and the low pressure flash chamber can be regulated by preceding pressure control valve, the middle pressure of flash tank of pressing is higher than when setting value, the preceding control valve opening of pressing increases, and the flow between middle pressure flash tank and the low pressure flash chamber increases; The middle pressure of flash tank of pressing is lower than when setting value, and preceding pressure control valve opening reduces, and the flow between middle pressure flash tank and the low pressure flash chamber reduces.
As preferred version of the present utility model, the condensation-water drain of described low pressure flash chamber bottom inserts the inlet of described condensate pump.
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 stop 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 stop valve before closing, and can change drain valve under the situation of breaks in production not.
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 that the utility model constant humidity, condensed water classification flash distillation and low temperature sensible heat reclaim the 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; S5. press the flash distillation steam pipe in; S6. low pressure flash steam pipe; 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. 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; Vk. air draft control valve; Vq. press automatic regulating valve before; Vd1. middle compression set pressurized overflow valve; Vd2. low pressure level pressure overflow valve; Vt1. high pressure drain valve; Vt2. press drain valve in; Vt3. low pressure drain valve; D1. press flash tank in; D2. low pressure flash chamber; 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 constant humidity, condensed water classification flash distillation and low temperature sensible heat reclaim the 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, 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 new wind preheater E4 makes condensed water and new wind carry out indirect heat exchange, and the below of new wind preheater E4 is provided with new wind inlet, and 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 condensed water of sending here from condensate pump P1 carries out preheating to new wind becomes preheating wind F2, and the sensible heat in the low pressure condensed water is recovered the back and discharges by cryogenic condensation water pipe W4, sends into the wind-supplying mouth of relaxation heat setting machine after new wind-warm syndrome degree is improved.The pre-hot blast F2 that enters from wind-supplying mouth and the return air F5 of drying chamber enter the inlet scoop of blower fan Fy jointly, 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, during inserting, the outlet of high pressure drain valve Vt1 presses the condensing water inlet of flash tank D1, the middle top of flash tank D1 of pressing is provided with middle compression set pressurized overflow valve Vd1, press the inlet of heat exchanger E2 during the outlet of middle compression set pressurized overflow valve Vd1 inserts by middle pressure flash distillation steam pipe S5, middle pressure flash distillation steam pipe S5 is provided with 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, middle condensing water inlet of pressing the outlet access low pressure flash chamber D2 of drain valve Vt2, the top of low pressure flash chamber D2 is provided with low pressure level pressure overflow valve Vd2, the outlet of low pressure level pressure overflow valve Vd2 is by the inlet of low pressure flash steam pipe S6 access low pressure heat exchanger E3, and low pressure flash steam pipe S6 is provided with 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.
The condensation-water drain of middle pressure flash tank D1 bottom is equipped with presses the pressure of flash tank D1 to regulate the preceding pressure automatic regulating valve Vq of aperture automatically in the basis, the outlet of preceding pressure automatic regulating valve Vq inserts the inlet of low pressure flash chamber D2.The preceding automatic aperture of regulating of the pressure height of pressing flash tank D1 in the automatic regulating valve Vq basis of pressing, flow between middle flash tank D1 of pressure and the low pressure flash chamber D2 can be regulated by preceding pressure control valve, the middle pressure of flash tank D1 of pressing is higher than when setting value, the preceding control valve opening of pressing increases, and the flow between middle pressure flash tank D1 and the low pressure flash chamber D2 increases; The middle pressure of flash tank D1 of pressing is lower than when setting value, and preceding pressure control valve opening reduces, and the flow between middle pressure flash tank D1 and the low pressure flash chamber D2 reduces.The condensation-water drain of low pressure flash chamber D2 bottom inserts the inlet of condensate pump P1.
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 stop 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, the condensed water of high pressure heat exchanger E1 is pressed flash tank D1 in the 8th stop valve V8 and high pressure drain valve Vt1 enter, during entering, middle middle pressure flash steam of pressing flash tank D1 to produce presses heat exchanger E2, the middle condensed water of heat exchanger E2 of pressing enters low pressure flash chamber D2 through the tenth stop valve V10 and middle pressure drain valve Vt2, and the low pressure flash vapour that low pressure flash chamber D2 produces enters low pressure heat exchanger E3.
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 simultaneously, 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, this moment, high pressure heat exchanger E1 and middle pressure heat exchanger E2 all used the middle pressure steam of outer confession, the condensed water that high pressure heat exchanger E1 produces is through the 9th stop valve V9, the tenth stop valve V10 and middle pressure drain valve Vt2 enter low pressure flash chamber D2, middle condensed water of pressing heat exchanger E2 to produce enters low pressure flash chamber D2 through the tenth stop valve V10 and middle pressure drain valve Vt2, and the low pressure flash vapour that low pressure flash chamber D2 produces enters low pressure heat exchanger E3.
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 simultaneously, 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, this moment high pressure heat exchanger E1, middle low-pressure steam of pressing heat exchanger E2 and low pressure heat exchanger E3 all to use outer confession, the condensed water that high pressure heat exchanger E1 produces is through the 9th stop valve V9, the 11 stop valve V11 and low pressure drain valve Vt3 enter condensate pump P1, middle condensed water of pressing heat exchanger E2 to produce enters condensate pump P1 through the 11 stop valve V11 and low pressure drain valve Vt3, and the condensed water that low pressure heat exchanger E3 produces directly enters condensate pump P1 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 (6)
1. constant humidity, condensed water classification flash distillation and low temperature sensible heat reclaim the 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, the below of described new wind preheater is provided with new wind inlet, and the top of new wind preheater is provided with pre-hot blast outlet; 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, during inserting by the high pressure drain valve, the outlet of described high pressure heat exchanger presses the condensing water inlet of flash tank, the middle top of flash tank of pressing is provided with middle compression set pressurized overflow valve, the outlet of middle compression set pressurized overflow valve inserts described middle inlet of pressing heat exchanger by middle pressure flash distillation steam pipe, middle condensing water inlet of pressing the outlet of heat exchanger by middle pressure drain valve access low pressure flash chamber, the top of low pressure flash chamber is provided with low pressure level pressure overflow valve, the outlet of low pressure level pressure overflow valve inserts the inlet of described low pressure heat exchanger by the low pressure flash steam pipe, the low pressure heat exchanger exit inserts the inlet of condensate pump by the low pressure drain valve, the condensed water delivery side of pump inserts described new wind preheater makes 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. constant humidity according to claim 1, condensed water classification flash distillation and low temperature sensible heat reclaim the 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; Press the flash distillation steam pipe to be provided with the 6th stop valve in described, the outlet of described the 6th stop valve also links to each other with the described middle inlet of heat exchanger of pressing; Described low pressure flash steam 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. constant humidity according to claim 1, condensed water classification flash distillation and low temperature sensible heat reclaim the relaxation heat setting machine, 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.
4. constant humidity according to claim 1, condensed water classification flash distillation and low temperature sensible heat reclaim the relaxation heat setting machine, it is characterized in that: the condensation-water drain of described middle pressure flash tank bottom is equipped with presses the pressure of flash tank to regulate the preceding pressure automatic regulating valve of aperture automatically in the basis, the outlet of described preceding pressure automatic regulating valve inserts the inlet of described low pressure flash chamber.
5. constant humidity according to claim 1, condensed water classification flash distillation and low temperature sensible heat reclaim the relaxation heat setting machine, and it is characterized in that: the condensation-water drain of described low pressure flash chamber bottom inserts the inlet of described condensate pump.
6. reclaim the relaxation heat setting machine according to each described constant humidity, condensed water classification flash distillation and low temperature sensible heat in the claim 1 to 5, 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 stop 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 |
|---|---|---|---|
| CN2013200507661U CN203080168U (en) | 2013-01-30 | 2013-01-30 | Constant humidity condensate water hierarchical flash evaporation and low-temperature sensible heat recovery slack heat-setting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200507661U CN203080168U (en) | 2013-01-30 | 2013-01-30 | Constant humidity condensate water hierarchical flash evaporation and low-temperature sensible heat recovery slack heat-setting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203080168U true CN203080168U (en) | 2013-07-24 |
Family
ID=48826026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200507661U Expired - Lifetime CN203080168U (en) | 2013-01-30 | 2013-01-30 | Constant humidity condensate water hierarchical flash evaporation and low-temperature sensible heat recovery slack heat-setting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203080168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507924A (en) * | 2022-02-21 | 2022-05-17 | 恒天重工股份有限公司 | Steam recycling method for post-processing of synthetic fibers |
-
2013
- 2013-01-30 CN CN2013200507661U patent/CN203080168U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507924A (en) * | 2022-02-21 | 2022-05-17 | 恒天重工股份有限公司 | Steam recycling method for post-processing of synthetic fibers |
| CN114507924B (en) * | 2022-02-21 | 2023-03-03 | 恒天重工股份有限公司 | Steam recycling method for post-processing of synthetic fibers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102410755B (en) | Multi-effect flash evaporation system for utilizing condensed water waste heat in air-heating coil group | |
| CN105889897B (en) | A kind of thermal power plant residual heat integrative recycling system and method | |
| CN203080169U (en) | Condensate water classifying flash waste heat recovery slack heat forming machine | |
| CN103060989B (en) | Constant-humidity relaxation heat setting machine adopting grading heat exchange and water drain and achieving water-air sensible heat gradient utilization | |
| CN103088509B (en) | Constant humidity type classification heat exchange dewatering and water sensible heat multistage utilization relaxation heat setting machine | |
| CN203080168U (en) | Constant humidity condensate water hierarchical flash evaporation and low-temperature sensible heat recovery slack heat-setting machine | |
| CN203096291U (en) | Hierarchical heat exchanging water draining and water-air sensible heat gradient utilization constant humidity type relaxation heat setting machine | |
| CN203080282U (en) | Grade heat exchange draining and water-wind sensible heat gradient utilization return-air-free loosening heat setting machine | |
| CN203080167U (en) | Constant humidity slack heat forming machine for condensate water latent heat and sensible heat and air exhaust waste heat recovery | |
| CN204165372U (en) | Combined steam decompression cycles multilevel drying system | |
| CN203128763U (en) | Return-air-free condensate-water grading flash and exhaust air waste heat recovery flabby heat-setting machine | |
| CN203174268U (en) | Return-air-free relaxation heat-setting machine for flash and sensible heat of condensate water and waste heat recovery of exhaust air | |
| CN203096294U (en) | Hierarchical heat exchanging water draining and water sensible heat multistage utilization constant humidity type relaxation heat setting machine | |
| CN207871570U (en) | A kind of device of rapidly pre-warming MVR vapo(u)rization systems | |
| CN202898899U (en) | Non-condensation steam control system used for paper machine drying cylinder | |
| CN203096293U (en) | Hierarchical heat exchanging water draining and water-air sensible heat multistage utilization constant humidity type relaxation heat setting machine | |
| CN203080170U (en) | Constant humidity condensate water hierarchical flash evaporation and air exhausting waste heat recovery slack heat-setting machine | |
| CN103088590B (en) | Non-air return, condensing water flash vaporization and sensitive heat and air exhaust waste heat recovery laxation thermoforming machine | |
| CN203174269U (en) | Constant humidity and condensate water grading flash evaporation waste heat recovery slack heat-setting machine | |
| CN103088508B (en) | Constant humidity type classification heat exchange dewatering and water-wind sensible heat multistage utilization relaxation heat setting machine | |
| CN203096292U (en) | Hierarchical heat exchanging water draining and discharged air waste heat utilization non-return-air relaxation heat setting machine | |
| CN203096410U (en) | Relaxation heat setting machine achieving gradient recycling of sensible heat of drained water and condensed water by stages | |
| CN203096409U (en) | Relaxation heat setting machine achieving gradient recycling of sensible heat of drained water, exhaust air and condensed water by stages | |
| CN103060990B (en) | Constant-humidity relaxation heat setting machine for condensate water flashing and sensible heat and exhaust afterheat recovering | |
| CN203128762U (en) | Loose heat-setting machine capable of achieving classified heat exchange, dewatering and condensate water sensible heat gradient utilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |