CN103697458A - Condensate recycling process and equipment - Google Patents
Condensate recycling process and equipment Download PDFInfo
- Publication number
- CN103697458A CN103697458A CN201310727378.7A CN201310727378A CN103697458A CN 103697458 A CN103697458 A CN 103697458A CN 201310727378 A CN201310727378 A CN 201310727378A CN 103697458 A CN103697458 A CN 103697458A
- Authority
- CN
- China
- Prior art keywords
- water
- pipeline
- tank
- flash
- condensed water
- 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.)
- Granted
Links
- 238000004064 recycling Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000009833 condensation Methods 0.000 claims description 41
- 230000005494 condensation Effects 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract 2
- 230000008020 evaporation Effects 0.000 abstract 2
- 238000011084 recovery Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000005770 birds nest Nutrition 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 235000005765 wild carrot Nutrition 0.000 description 1
Images
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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to condensate recycling process and equipment. Gas-liquid-separated high-temperature condensate is fed into a flash evaporation tank through a pipeline and forms flash steam and condensate (100 DEG C) in the flash evaporation tank under low pressure, the condensate is cooled and discharged for being reused, and the flash steam enters the next procedure; the flash steam enters a vacuum concentration tank through a pipeline, the flash steam is subjected vacuum concentration to generate waste steam and condensate, and the waste steam and the condensate enters the next procedures; the waste steam in the concentration tank is discharged into an air cooler through a pipeline and is subjected to air cooling to form water, and the water is discharged into a water collecting tank through a pipeline; the condensate in the concentration tank is discharged into a condensate recycling machine through a pipeline, and the condensate is fed back into a boiler through the condensate recycling machine. Compared with the prior art, the condensate recycling process and equipment is high in condensate recycling efficiency and good in effect, energy and water resources are saved greatly, production cost is lowered, and the like.
Description
technical fieldthe present invention relates to a kind of recovery process and equipment of condensed water.
background technologyin fields such as feed processing, textile printings, boiler frequency of utilization is more, the steam that boiler produces is supplied with the equipment such as precooker and drying machine through the heat exchange meeting condensation a large amount of condensed water (temperature is at 120-130 ℃) that gets off by pipeline, traditional approach is that condensed water is directly discharged through steam trap, this just causes the serious energy and the waste of water resource, for reducing these wastes, manufacturing enterprise takes the unified collection of these high-temperature condensation waters, then through condensation water reclaiming machine, return boiler or other use heat place, realize operation cycle.Manufacturing enterprise takes open type water collect tank to realize the recovery of condensed water substantially at present, when utilizing open type water collect tank to collect high-temperature condensation water, due to condensed water enter water collect tank after pressure reduce suddenly, in water collect tank, can produce a large amount of secondary flash steams, residue condensate temperature is greatly about 100 ℃ of left and right, and existing condensation water reclaiming machine reclaims water temperature 70 ℃ of left and right, for preventing transportation water pump cavitation and causing Pollution of Boiler, flash steam need to be dissipated or is blended into cold water could reclaim, this not only makes flash steam be wasted, and organic efficiency is low, during heat radiation, there will be air to enter in recovery channel, after injection boiler, can increase the fouling of boiler, reduce the service life of boiler.
summary of the inventionthe object of the present invention is to provide a kind of flash steam reuse producing can effectively realize high-temperature condensation water and reclaim time, condensed water organic efficiency is high, effective, greatly save the energy and water resource, reduce production costs, by the Processes and apparatus of the condensed water recycling of the value of environmental protection of condensed water and the strong combination of economic worth.
A kind of condensed water recovery process that the present invention proposes, its indirect steam that is mainly steam supply precooker that boiler is produced and the drying machine condensed water that condensation is got off after heat exchange (120-130 ℃) produce carries out reuse, and technique is as follows:
(1) vapor-liquid separation
High-temperature condensation water is squeezed in flash tank by pipeline, and high-temperature condensation water is depression formation flash steam and condensed water (100 ℃) in flash tank, after condensed water cooling, discharges and utilizes, and flash steam enters next procedure;
(2) Vacuum Concentration
Flash steam enters vacuum concentration pot through pipeline, and flash steam produces exhaust steam and condensed water through Vacuum Concentration, and Vacuum Concentration temperature is 60～80 ℃, and vacuum is-0.095～-0.085MPa, and exhaust steam and condensed water enter respectively next procedure;
(3) vapour-liquid reclaims
A) exhaust steam in concentration tank enters in air cooler by pipeline, through vacuum cooled, form water, chilling temperature is 35～45 ℃, vacuum is-0.095～-0.085MPa, water is entered in water collect tank and is collected by pipeline, for making exhaust steam vacuum effectiveness better, preferably water collect tank is communicated with the vavuum pump that plays raising air cooler vacuum effectiveness;
B) condensed water in concentration tank (75～85 ℃) enters in condensation water reclaiming machine through pipeline, through condensation water reclaiming machine, returns boiler.
A kind of condensed water recycling equipment that the present invention proposes, it mainly includes flash tank, pipeline, concentration tank, air cooler, water collect tank, vavuum pump and condensation water reclaiming machine, wherein on flash tank, be communicated with several high-temperature condensation water pipelines, on described flash tank, be also communicated with flash steam main pipeline, the flash steam main pipeline other end that this one end is connected with flash tank is blind end, it is also connected with several flash steam branch pipe(tube)s, and described each flash steam branch pipe(tube) is with valvular conduit to be communicated with concentration tank by some respectively; On flash steam main pipeline between described flash tank and its nearest flash steam branch pipe(tube), establish valve; Above-mentioned each concentration tank is respectively by being with valvular pipeline to be communicated with exhaust steam, and one end of this exhaust steam main pipeline is blind end, and the other end is with valvular conduit to be connected with air cooler air inlet by several; The delivery port of described air cooler is by some valvular conduit and cross currents be with, one end of water pipe is communicated with air cooler, the other end is communicated with a water collect tank in water collect tank group, in described water collect tank group between each water collect tank by being with valvular pipeline communication, and on the water collect tank communicating with air cooler, establish some drainage pipelines, on these drainage pipelines, all establish vavuum pump; On above-mentioned each concentration tank by being with valvular conduit to be communicated with condensed water branch pipe(tube), condensed water branch pipe(tube) one end is connected with concentration tank, the other end is by being with valvular conduit to be communicated with condensed water main pipeline, the two ends of described condensed water main pipeline are blind end, it is also by being communicated with the water inlet of some condensation water reclaiming machines respectively with valvular conduit, and the condensed water main pipeline between described condensed water branch pipe(tube) and its nearest condensation water reclaiming machine is provided with valve; The delivery port of above-mentioned every condensation water reclaiming machine is communicated with the water inlet of boiler by pipeline respectively.
The steam that the present invention produces boiler is supplied with precooker and drying machine by pipeline and is passed through the condensed water that heat exchange condensation gets off and recycle, after condensation water collection in flash tank, discharge and utilize, the flash steam producing in it is through the concentrated condensed water that again forms, again flash steam is reclaimed and by recycling machine, returns boiler by concentrating the condensed water getting off, this equipment is when operation, high-temperature condensation water is discharged in hot equipment, again the flash steam a condensed water except recoverable is formed to time condensation water, once re-inject the boiler circulation of finishing the work with time condensation water.
The present invention compared with prior art tool has the following advantages:
1, effectively realize the utilization again of the flash steam producing when condensed water reclaims, significantly improve the organic efficiency of condensed water, greatly save production cost and energy resource consumption;
2, effectively avoid the waste of water resource, the condensed water rate of recovery of this equipment can reach 96% left and right, as calculated, every day, general recyclable water was 1104.16 tons, every year can using water wisely 13.25 ten thousand tons, after docking with boiler, save fuel approximately 20%, every day, the amount of being sparing in the use of coal was 63 tons of left and right simultaneously, year saving 7560 tons of left and right of coal consumption;
3, the service life of equipment such as prolonged boiler, the present invention can avoid the pollutions of dissolved gas to condensed water such as oxygen, carbon dioxide, eliminated oxygen corrosion, boiler and pipeline service life have been extended, condensed water is not containing harmful components such as bird nests, alleviate gyp, effectively prolonged boiler and thermo-mechanical equipment service life.
4, cavitation-preventive, solves the delivery pump cavitation erosion problem of dispelling the heat and bringing when tradition reclaims condensed water.
5, automaticity, is combined the circulation of finishing the work with boiler, guarantee the stability of boiler operatiopn, effectively reduces workman's labour intensity.
accompanying drawing explanationfig. 1 is the overall structure schematic diagram of condensed water recycling equipment.
the specific embodimentbelow just by reference to the accompanying drawings invention is elaborated
1 one kinds of condensed water recycling equipment of embodiment, as shown in Figure 1, on flash tank 1, be communicated with several high-temperature condensation water pipelines 2, on flash tank, be communicated with flash steam main pipeline 3, the flash steam main pipeline other end that this one end is connected with flash tank is blind end, it is also connected with several flash steam branch pipe(tube)s 4, and described each flash steam branch pipe(tube) is with valvular conduit 5 to be communicated with concentration tank 6 by some respectively; On flash steam main pipeline between described flash tank and its nearest flash steam branch pipe(tube), establish valve 7; Above-mentioned each concentration tank is respectively by being with valvular pipeline 8 to be communicated with exhaust steam pipeline 9, and one end of this exhaust steam pipeline is blind end, and the other end is with valvular conduit 10 to be connected with air cooler 11 air inlets by several; The delivery port of described air cooler is with valvular conduit 12 to be communicated with water pipe 13 by some, one end of water pipe is communicated with air cooler, the other end is communicated with a water collect tank 14 in water collect tank group, in described water collect tank group between each water collect tank by being with valvular pipeline 15 to be communicated with, and on the water collect tank communicating with air cooler, establish some drainage pipelines 16, on these drainage pipelines, all establish vavuum pump 17; On above-mentioned each concentration tank by being with valvular conduit 18 to be communicated with condensed water branch pipe(tube)s 19, condensed water branch pipe(tube) one end is connected with concentration tank, the other end is by being with valvular conduit 20 to be communicated with condensed water main pipeline 21, the two ends of described condensed water main pipeline are blind end, it is also by being communicated with the water inlet of some condensation water reclaiming machines 23 respectively with valvular conduit 22, and the condensed water main pipeline between described condensed water branch pipe(tube) and its nearest condensation water reclaiming machine is provided with valve 24; The delivery port of above-mentioned every condensation water reclaiming machine is communicated with the water inlet of boiler 26 by pipeline 25 respectively.
Assembly such as air cooler, vavuum pump, condensation water reclaiming machine, agitator tank and the mechanical pump etc. that form above-mentioned condensed water recycling equipment are the conventional products of selling on market, for example, air cooler is the model that Yantai Cabeo Heat Exchanger Co., Ltd. produces: ACHSD086KB-6N-30D180-H air cooler, condensation water reclaiming machine is the model that Yongtai, Qingdao boiler Co., Ltd produces: YTLH-25 condensation water reclaiming machine.
2 one kinds of condensed water recycling techniques that complete by embodiment 1 of embodiment are as follows:
As shown in Figure 1, high-temperature condensation water is squeezed in flash tank 1 by pipeline 2, high-temperature condensation water is depression formation flash steam and condensed water (100 ℃) in flash tank, after condensed water cooling, discharge and utilize, flash steam is through flash steam main pipeline 3, flash steam branch pipe(tube) 4 and conduit 5 enter vacuum concentration pot 6, flash steam produces exhaust steam and condensed water through Vacuum Concentration, Vacuum Concentration temperature is 85 ℃, vacuum is-0.09 MPa, time is 1h, exhaust steam in concentration tank is by pipeline 8, exhaust steam pipeline 9 and conduit 10 enter in air cooler 11, through vacuum cooled, form water, chilling temperature is 40 ℃, vacuum is-0.085 MPa, water is entered in water collect tank 14 and is collected by conduit 12 and water pipe 13, the vavuum pump 17 that water collect tank is communicated with plays and improves air cooler vacuum effectiveness, condensed water in concentration tank (80 ℃) enters in condensation water reclaiming machine 23 through conduit 18, condensed water branch pipe(tube) 19, conduit 20, condensed water main pipeline 21 and conduit, finally by condensation water reclaiming machine, returns boiler 26.
Claims (4)
1. a condensed water recycling equipment, comprise flash tank, pipeline, concentration tank, air cooler, water collect tank, vavuum pump and condensation water reclaiming machine, it is characterized in that: on described flash tank, be communicated with high-temperature condensation water pipeline, on described flash tank, be also communicated with flash steam main pipeline, the flash steam main pipeline other end that this one end is connected with flash tank is blind end, it is also connected with flash steam branch pipe(tube), and described each flash steam branch pipe(tube) is respectively by being with valvular conduit to be communicated with concentration tank, on flash steam main pipeline between described flash tank and its nearest flash steam branch pipe(tube), establish valve, above-mentioned each concentration tank is respectively by being with valvular pipeline to be communicated with exhaust steam, and one end of this exhaust steam main pipeline is blind end, and the other end is by being with valvular conduit to be connected with air cooler air inlet, the delivery port of described air cooler is by being with valvular conduit and cross current, one end of water pipe is communicated with air cooler, the other end is communicated with a water collect tank in water collect tank group, in described water collect tank group between each water collect tank by being with valvular pipeline communication, and establish drainage pipeline on the water collect tank communicating with air cooler, on above-mentioned each concentration tank by being with valvular conduit to be communicated with condensed water branch pipe(tube), condensed water branch pipe(tube) one end is connected with concentration tank, the other end is by being with valvular conduit to be communicated with condensed water main pipeline, the two ends of described condensed water main pipeline are blind end, it is also by being communicated with the water inlet of condensation water reclaiming machine respectively with valvular conduit, condensed water main pipeline between described condensed water branch pipe(tube) and its nearest condensation water reclaiming machine is provided with valve, the delivery port of above-mentioned every condensation water reclaiming machine is communicated with the water inlet of boiler by pipeline respectively.
2. condensed water recycling equipment according to claim 1, is characterized in that: on the described and cooling drainage pipeline communicating, all establish vavuum pump.
3. a condensed water recycling technique, is characterized in that:
(1) vapor-liquid separation
High-temperature condensation water is squeezed in flash tank by pipeline, and high-temperature condensation water is depression formation flash steam and condensed water (100 ℃) in flash tank, after condensed water cooling, discharges and utilizes, and flash steam enters next procedure;
(2) Vacuum Concentration
Flash steam enters vacuum concentration pot through pipeline, and flash steam produces exhaust steam and condensed water through Vacuum Concentration, and Vacuum Concentration temperature is 60～80 ℃, and vacuum is-0.095～-0.085MPa, and exhaust steam and condensed water enter respectively next procedure;
(3) vapour-liquid reclaims
A) exhaust steam in concentration tank enters in air cooler by pipeline, through vacuum cooled, forms water, and chilling temperature is 35～45 ℃, and vacuum is-0.095～-0.085MPa, and water is entered in water collect tank and collected by pipeline;
B) condensed water in concentration tank enters in condensation water reclaiming machine through pipeline, through condensation water reclaiming machine, returns boiler.
4. a kind of condensed water recycling technique according to claim 3, is characterized in that: water collect tank is communicated with the vavuum pump that plays raising air cooler vacuum effectiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727378.7A CN103697458B (en) | 2013-12-26 | 2013-12-26 | Condensate recycling process and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310727378.7A CN103697458B (en) | 2013-12-26 | 2013-12-26 | Condensate recycling process and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103697458A true CN103697458A (en) | 2014-04-02 |
| CN103697458B CN103697458B (en) | 2015-04-15 |
Family
ID=50359076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310727378.7A Expired - Fee Related CN103697458B (en) | 2013-12-26 | 2013-12-26 | Condensate recycling process and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103697458B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919433A (en) * | 2016-05-24 | 2016-09-07 | 平湖科能电器技术有限公司 | Steam recycling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2489944A1 (en) * | 1980-09-05 | 1982-03-12 | Gen Electric | Recovery of waste, from pressurised steam condensate - by flashing off steam in flash tank and recondensing by contact with water |
| CN101880983A (en) * | 2010-06-20 | 2010-11-10 | 九江九洲节能环保工程有限公司 | Inspissation treating method and device for black liquor |
| CN202315356U (en) * | 2011-11-30 | 2012-07-11 | 甘肃赫原生物制品有限公司 | Step circulation recovery device of waste heat in xylose production |
| CN202902258U (en) * | 2012-12-02 | 2013-04-24 | 日照绿瓦能源科技有限公司 | Closed-type condensation water recovery system of steam thermodynamic system |
| CN203309887U (en) * | 2013-05-21 | 2013-11-27 | 山东宏信化工股份有限公司 | Closed recovery system for high-temperature condensation water |
| CN203757692U (en) * | 2013-12-26 | 2014-08-06 | 龙源海洋生物股份有限公司 | Condensate recycling and reusing equipment |
-
2013
- 2013-12-26 CN CN201310727378.7A patent/CN103697458B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2489944A1 (en) * | 1980-09-05 | 1982-03-12 | Gen Electric | Recovery of waste, from pressurised steam condensate - by flashing off steam in flash tank and recondensing by contact with water |
| CN101880983A (en) * | 2010-06-20 | 2010-11-10 | 九江九洲节能环保工程有限公司 | Inspissation treating method and device for black liquor |
| CN202315356U (en) * | 2011-11-30 | 2012-07-11 | 甘肃赫原生物制品有限公司 | Step circulation recovery device of waste heat in xylose production |
| CN202902258U (en) * | 2012-12-02 | 2013-04-24 | 日照绿瓦能源科技有限公司 | Closed-type condensation water recovery system of steam thermodynamic system |
| CN203309887U (en) * | 2013-05-21 | 2013-11-27 | 山东宏信化工股份有限公司 | Closed recovery system for high-temperature condensation water |
| CN203757692U (en) * | 2013-12-26 | 2014-08-06 | 龙源海洋生物股份有限公司 | Condensate recycling and reusing equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919433A (en) * | 2016-05-24 | 2016-09-07 | 平湖科能电器技术有限公司 | Steam recycling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103697458B (en) | 2015-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203757692U (en) | Condensate recycling and reusing equipment | |
| CN104848199A (en) | Method for recovering waste heat from power plant through absorption heat pump to heat boiler water | |
| CN201475980U (en) | Exhaust steam recovering and recycling system of deaeration tower | |
| CN203203020U (en) | Steam waste heat water recycling device for machining paper | |
| CN210397115U (en) | Air compressor machine waste heat recovery sled dress device | |
| CN103953961A (en) | High back pressure and heat pump combined heat supply system for air cooling unit | |
| CN204678472U (en) | A kind of system of waste heat for heating reclaiming circulating cooling water of power plant | |
| CN103697458B (en) | Condensate recycling process and equipment | |
| CN205664467U (en) | Directly retrieve economizer that power plant's condenser waste heat is used for municipal heat supply | |
| CN204829289U (en) | Steam subtracts warm depressurized system | |
| CN220687418U (en) | High-temperature heat pump power generation system | |
| CN202182458U (en) | Heat supply network drainage system of supercritical direct air cooling heat supply unit | |
| CN104477955B (en) | Live steam condensed water cooling in a kind of alumina producing and heat recovery method | |
| CN104006374B (en) | Based on condensation water recovery system and the method for work of coagulation hydroenergy backwater heat exchanger | |
| CN103691137B (en) | Fish pressed liquor concentrator | |
| CN203750190U (en) | Fish squeezed liquid concentration equipment | |
| CN203907580U (en) | Condensate water recovery system based on condensation water returning heat exchanger | |
| CN204593333U (en) | A kind of district heating system based on flash evaporation technology | |
| CN204678742U (en) | A kind of heat-pump type high-temperature condensate retracting device | |
| CN102889573A (en) | Process system for preparing deoxygenated water for boiler by utilizing high temperature heat pump system | |
| CN203756464U (en) | Steam recovery system of ejection vacuum pump | |
| CN204005938U (en) | Environmental-protection energy-saving device is reclaimed in injecting type exhaust steam | |
| CN106640650B (en) | One kind producing water ring vacuum pump liquid withdrawal system for carbon fibre precursor | |
| CN204188047U (en) | Laundry waste heat recycling device | |
| CN205717457U (en) | A kind of centralized great temperature difference heat supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |