CN201105168Y - Continuous capasity-enlarging evaporator - Google Patents
Continuous capasity-enlarging evaporator Download PDFInfo
- Publication number
- CN201105168Y CN201105168Y CNU2007200465998U CN200720046599U CN201105168Y CN 201105168 Y CN201105168 Y CN 201105168Y CN U2007200465998 U CNU2007200465998 U CN U2007200465998U CN 200720046599 U CN200720046599 U CN 200720046599U CN 201105168 Y CN201105168 Y CN 201105168Y
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- dilatation
- dilatation unit
- condenser
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000001704 evaporation Methods 0.000 claims abstract description 37
- 239000003513 alkali Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000000605 extraction Methods 0.000 claims description 27
- 239000002585 base Substances 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000009835 boiling Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 8
- 239000012141 concentrate Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 238000013022 venting Methods 0.000 abstract 3
- 238000004064 recycling Methods 0.000 abstract 1
- 208000018672 Dilatation Diseases 0.000 description 62
- 230000008016 vaporization Effects 0.000 description 19
- 238000009834 vaporization Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 14
- 230000008020 evaporation Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 235000014171 carbonated beverage Nutrition 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000009992 mercerising Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000000744 eyelid Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to an equipment, belonging to distilling and concentrating chemical liquid and recycling chemical products, in particular to a continuous capacity expansion evaporator which can make the wasted light alkali concentrate and reutilize. According to the technical proposal adopted by the utility model, a plurality of capacity expansion units are arranged inside the capacity expansion body, a heat venting room is positioned on one side of the capacity expansion body, the output of the heat venting room is connected with the second-time heater, a big catchall and an outlet of concentrated alkali are positioned on a boiling chamber. A condenser is fixed inside each capacity expansion unit and on the upper part of the heat venting chamber, a drain plug is fixed on each capacity expansion unit, a liquid inlet tube connected with an outer heater is fixed on the condenser of the first order capacity expansion units,, the discharge tube of the outer heater is connected with the evaporating coil of the first order capacity expansion units, and the outer heater adopts a steam trap to vent the condensate water in the heater. The utility model can be used to recover and utilize the chemical liquid and reduce the environmental pollution.
Description
Technical field
The utility model belongs to a kind of equipment that concentrates chemical liquid and recycle chemical products that distills, the continuous volume expanding evaporator that utilizes again after the specifically a kind of light alkali that gives up can being concentrated.
Background technology
PH type continuous volume expanding evaporator is a kind of negative pressure evaporation concentrator.Be applicable to that the useless light alkali of printing and dyeing enterprise concentrates utilization again and the chemical industry distillation concentrates chemical liquid.So-called dilatation, be exactly its mainly act on be certain liquid under given conditions, discharge suddenly by the back of pressurizeing, produce the dilatation effect, evaporimeter is to produce vaporization under certain condition, makes the steam evaporation, steam separates, and makes liquid concentration arrive desirable concentration.
Printing and dyeing enterprise in process of production, having together must be through technology---mercerising, by just reaching the technological requirement of cloth cover behind the mercerising, product quality just can improve.Yet in the mercerising process, can produce a large amount of waste liquid alkali,, both waste energy, cause environmental pollution again, and the pH value that has increased sewage disposal exceeds standard and neutralize and intractability with acid, be unfavorable for society and environmental protection as in time not reclaiming.
Summary of the invention
The purpose of this utility model is to design a kind of continuous volume expanding evaporator, so that reclaim and utilize chemical liquid, reduces environmental pollution.
According to the technical scheme that the utility model provides, several dilatation unit are arranged in the dilatation body, in a side of dilatation body the heat extraction chamber is set, the output of heat extraction chamber connects after-heater, and the outlet of big liquid trap and concentrated base is set on boiling-house; In each dilatation unit, reach the indoor top of heat extraction condenser is set, bottom in each dilatation unit is provided with evaporating pan, utilize condenser pipe to be interconnected between the condenser of adjacent two dilatation unit, the evaporating pan of adjacent two dilatation unit utilizes mozzle to be interconnected; On each dilatation unit, gutter spout funnel is arranged, the condensate pipe that is communicated with condensed water bucket is set on the gutter spout funnel, useless light alkali inlet tube is set under the heat extraction chamber, on the condenser of first order dilatation unit, be provided with outside the feed tube that is communicated with of heater, the discharging tube of outer heater is communicated with the evaporating pan of first order dilatation unit, and outer heater adopts steam trap that condensed water in the heater is discharged.
Output at big liquid trap utilizes pipeline to connect water ejector, and the import of this water ejector is connected with jet pump, and outlet is provided for connecting the pipeline in pond, and the output of big liquid trap is connected with its negative pressure mouth.Utilize pipeline to connect spray pump and concentrated base circulation bucket on boiling-house, spray pump and concentrated base circulation bucket interconnect.
Bottom in each dilatation unit is provided with blow-off line; The condenser of each dilatation unit utilizes condenser pipe to interconnect from left to right successively; The evaporating pan of each dilatation unit utilizes mozzle to connect successively from right to left; Between adjacent two dilatation unit the vacuum tandem tube is set, installation is used to regulate the adjustment sheet of vacuum on every vacuum tandem tube.
In the dilatation unit, a side of condenser is provided with water fender, and the water reception tank of collecting condensed water is set above the inwall of dilatation unit, water fender, and the deflector that guides flow action has been set between water reception tank and water fender, and gutter spout funnel is set behind water fender.One end of mozzle points to the bottom of dilatation unit, and the end of this end is lower than the bottom of evaporating pan; The upper end of mozzle is connected with evaporating pan in the next stage dilatation unit; Bottom at evaporating pan is provided with aperture.Utilize pipeline to connect circulating pump is connected with the condenser inlet end in bottom, heat extraction chamber.
The utility model has the advantages that: after utilizing this device, can effectively improve the ability of handling salkali waste and reduce environmental pollution.
Description of drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a side schematic view of the present utility model.
Fig. 3 is the dilatation cell schematics.
The specific embodiment
As shown in the figure: several dilatation unit 14 are arranged in dilatation body 8, in a side of dilatation body 8 heat extraction chamber 5 is set, the output of heat extraction chamber 5 connects after-heater 4, and big liquid trap 3 and concentrated base outlet 25 is set on boiling-house 2; The top that reaches in the heat extraction chamber 5 in each dilatation unit 14 is provided with condenser 28, bottom in each dilatation unit 14 is provided with evaporating pan 32,28 of the condensers of adjacent two dilatation unit 14 utilize condenser pipe 7 to be interconnected, and the evaporating pan 32 of adjacent two dilatation unit 14 utilizes mozzle 33 to be interconnected; On each dilatation unit 14, gutter spout funnel 36 is arranged, the condensate pipe 30 that is communicated with condensed water bucket 18 is set on the gutter spout funnel 36, useless light alkali inlet tube 16 is set for 5 times in the heat extraction chamber, on the condenser 28 of first order dilatation unit 14, be provided with outside the feed tube 12 that is communicated with of heater 11, the discharging tube 9 of outer heater 11 is communicated with the evaporating pan 32 of first order dilatation unit 14, and outer heater adopts steam trap that condensed water in the heater is discharged.
Output at big liquid trap 3 utilizes pipeline to connect water ejector 1, and the import of this water ejector 1 is connected with jet pump 23, and outlet is provided for connecting the pipeline in pond 24, and the output of big liquid trap 3 is connected with its negative pressure mouth.Utilize pipeline to connect spray pump 21 and concentrated base circulation bucket 20 on boiling-house 2, spray pump 21 interconnects with concentrated base circulation bucket 20.
In the bottom of each dilatation unit 14 blow-off line 34 is set; The condenser 28 of each dilatation unit 14 utilizes condenser pipe 7 to interconnect from left to right successively; The evaporating pan 32 of each dilatation unit 14 utilizes mozzle 33 to connect successively from right to left; 14 of adjacent two dilatation unit vacuum tandem tube 31 is set, installation is used to regulate the adjustment sheet of vacuum on every vacuum tandem tube 31.
In dilatation unit 14, one side of condenser 28 is provided with water fender 29, the water reception tank 27 of collecting condensed water is set above the inwall of dilatation unit 14, water fender 29, the deflector 35 that guides flow action has been set, gutter spout funnel 36 is set behind water fender 29 at water reception tank 27 and 29 of water fenders.
One end of mozzle 33 points to the bottom of dilatation unit 14, and the end of this end is lower than the bottom of evaporating pan 32; The upper end of mozzle 33 is connected with evaporating pan 32 in the next stage dilatation unit; Bottom at evaporating pan 32 is provided with aperture.Utilize pipeline to connect circulating pump 19 is connected with condenser 28 arrival ends in 5 bottoms, heat extraction chamber.
The effect of above-mentioned each member is as follows:
1, water fender on the basis of design water fender 29, is considered the factors such as transport disengaging height, resistance, dead angle of the back steam flow rate of climb and flow and alkali and the water vapour of being vaporized, and appropriate design goes out certain height makes alkali lye with race outside the evaporation of vaporization back.And reduced by 75% above dead angle, the minimum that air-flow rising resistance is subtracted.Can produce the rising steam flow behind the vaporizing liquid, the effect of water fender 29 is to make water vapour enter the inside groove of water fender 29 when certain altitude, and alkali lye is because proportion relation retaining outside water fender 29, falls back to bottom half.
2, inspection manhole, vaporization chambers at different levels are by after using a period of time heat exchange, can produce fouling, regularly opening manhole, to enter the vaporization chamber maintaining be necessary, my each vaporization chamber of PH type continuous volume expanding evaporator of company's design production all has the maintenance manhole in this respect, maintain easily maintenance and maintenance, service life of equipment is prolonged greatly.The operating efficiency of evaporimeter can not reduce owing to often maintain.
3, the heat extraction chamber 5, and the liquid of vaporization chambers at different levels evaporates after vaporization, but have part vaporization back carbonated drink not enter water fender 29, do not condense into condensed water along with air draught and discharge.Multi-stage evaporator is to cool off with adding cold water, effluxes after making condensed gas after the vaporization be condensed into water.The surplus carbonated drink that the present invention has adopted vaporization is heating principle again, this gas is sent into the final stage boiling-house that temperature is lower than the calorific requirement of this bog, 80 ℃ of the temperature of heat extraction chamber 5,48 ℃ of boiling-house temperature, be heated to 55 ℃, the purpose of the waste heat of being fully used and energy savings.And be transformed into the heat extraction chamber of reducing the air-flow dead angle in the heat extraction chamber.
4, boiling-house 2, and the operation principle of boiling-house 2 originally is when vacuum 0.09MPe, and temperature though reach the boiling effect, waits other reason owing to running heat at 48 ℃, does not reach original desirable designing requirement.Install residual heat using device additional in the boiling-house 2 of the present invention, made boiling-house temperature in the boiling-house 2 on former 48 ℃ of bases, brought up to 55 ℃, guaranteed 18 ℃ of satisfied temperature scopes.
5, condenser 28, require condensed water not to be with alkali.Focus on design at original condensed water band alkali problem, because the condensed water after the vaporization evaporates in thin liquid alkali, the setting height(from bottom) to water fender 29 during calculating is relatively strict again.Just in case make mistakes or the improper serious band alkali phenomenon that can produce again is installed, both wasted energy like this, again contaminated environment during calculating.The pH value of condensed water is 7.8, and definite condensed water receives rationally.And every grade be equipped with endoscopy glass, makes it can conveniently observe every grade of condensed water effluent characteristics.
6, dilatation body, the main effect of dilatation body 8 are to vacuumize the generation negative pressure by water ejector 1, and the heating down of heater 11 effects outside simultaneously elevates the temperature into and vaporizes under the barotropic condition, reaches the effect that carbonated drink is separated.
The concrete course of work is as follows:
1, preliminary treatment: the salkali waste by the mercerizing range output stores up the alkali jar with being pumped into.Storage alkali jar is generally vertical, and each jar is according to user's field course layout volume size.Carry out filtration treatment with being pumped into filter again, make lye ratio more totally enter flash-boiling evaporators.Control flow with flowmeter when light alkali enters PH type continuous volume expanding evaporator, advance alkali number and be as the criterion by board design treating capacity.
2, vacuumize: with jet pump 23 water under high pressure is flowed to water ejector 1, water under high pressure is gone into Venturi tube in the nozzle ejection on water ejector 1 top, according to jet current principle, air is taken away, and produces negative pressure.Purpose is to make PH type continuous volume expanding evaporator equipment produce negative pressure, and under negative pressure state, the temperature boiling point can reduce a lot, energy savings.Negative pressure numerical value should be more than the 0.09MPe when the highest.
Produce certain vacuum owing to vacuumize the back by water ejector 1 in the equipment, make first order dilatation unit poor by adjusting to producing certain vacuum successively between grade dilatation unit at last, dried up injector distance is near more, vacuum is high more, vacuum far away more is low more, on the vacuum tandem tube 31 in each dilatation unit 14 adjustment sheet is installed, and passes through pivoted eyelid, to change the flow area of vacuum tandem tube 31, it is poor to make dilatations at different levels unit 14 have certain vacuum.
Before vacuumizing, should regulate vacuum earlier: vacuumize the back by water ejector 1 in the flash-boiling evaporators and produce certain vacuum, make by adjusting that to produce certain vacuum successively between first order dilatation unit to final stage dilatation unit poor; And dried up injector 1 distance is near more, and vacuum is high more, and vacuum far away more is low more.
3, condensation: weak lye enters under the effect of negative pressure in the 7th grade of dilatation unit 14.Send in the condenser 28 by circulating pump 19, enter in subordinate's condenser 28 by condenser pipe 7 one by one successively then, evaporate by entering in the dilatation unit 14 after the heating, the condensed water of generation is sent in the condensed water bucket 18 after collecting;
4, heating: after the weak lye of condenser 28 preheatings is being discharged condensed water, on first order dilatation unit 14, utilize outer heater 11 that fluid temperature is elevated to 100 ℃; Because liquid is under the normal temperature situation, temperature is generally 20 ℃, the liquid of 20 ℃ of normal temperature be evaporated, and then still will heat, and could evaporate in the time of more than the temperature to 100 ℃.
5, evaporation: the weak lye after the heating is admitted in the evaporating pan 32 of 14 bottoms, first order dilatation unit, and some apertures are arranged at the bottom of evaporating pan 32, makes the alkali lye that has evaporated behind a part of water flow into the bottom of dilatation unit 14 in the aperture of evaporating pan 32; And enter in the evaporating pan 32 of adjacent next stage dilatation unit 14 via mozzle 33 one by one successively; Main effect is because the effect of circulating pump, the big more easy more evaporation of liquid disengagement area when mobile, evaporimeter is established for increasing disengagement area exactly, a lot of apertures are arranged at the bottom of evaporimeter, liquid is flowed out in the evaporimeter aperture, and liquid during liquid flow and space contact surface are long-pending can to enlarge several times.
6, heat extraction: the output of the level dilatation in the end of the alkali lye behind pervaporation unit 14 is introduced in the heat extraction chamber 5 by its mozzle 33, carries out heat extraction in heat extraction chamber 5; The steam that will not condense into condensed water after will partly vaporizing is simultaneously sent in the after-heater 4; The liquid of vaporization chambers at different levels evaporates after vaporization, but has part vaporization back carbonated drink not enter water fender, does not condense into condensed water along with air draught and discharges.Multi-stage evaporator is to cool off with adding cold water, effluxes after making condensed gas after the vaporization be condensed into water.The surplus carbonated drink that vaporization has been adopted in this dilatation is heating principle again, send into this gas that temperature is lower than this bog and the final stage boiling-house of calorific requirement, 80 ℃ of heat extraction room temperatures, 48 ℃ of boiling-house temperature, be heated to 55 ℃, the purpose of the waste heat of being fully used and energy savings.And be transformed into the heat extraction chamber of reducing the air-flow dead angle in the heat extraction chamber.
7, boiling: utilize the alkali lye in interior 70～90 ℃ of incondensable gas ebuillition of heated chambers 25, heat extraction chamber; The boiling-house operation principle of early stage design is when vacuum 0.09MPe, and temperature though reach the boiling effect, waits other reason owing to running heat at 48 ℃, does not reach original desirable designing requirement.Install residual heat using device additional when existing my company designs, made the boiling-house temperature on former 48 ℃ of bases, brought up to 55 ℃, guaranteed 18 ℃ of satisfied temperature scopes.
8, catch liquid: enter in the cyclonic separation liquid trap 3 through the water vapour after the boiling, utilize the proportion principle of alkali and water, alkali is separated mutually with water, wherein water is brought in the pond 24 by water ejector 1, and the concentrated base that stays is back to boiling-house 2 through concentrated base outlet 25; Steam is simultaneously along with water is outwards run out of, and not have the alkali lye of separation then to reflux in the boiling-house 2.In evaporation process, steam after the vaporization and part alkali lye is upwards evaporation simultaneously, owing to draw gas vacuumizing, also can take part alkali lye to outside, the effect of liquid trap is that alkali lye is outwards run out of, and it produces a kind of spiral is whirlwind, utilizes the proportion principle of alkali and water, steam is run out of along with outwards vacuumizing, and alkali lye is then by in the boiling-house 2 that refluxes after the cyclonic separation.
9, circulation: utilize circulating pump 19 will be delivered to the condenser inlet of first order dilatation unit 14 once more through the alkali lye after the evaporator evaporation of last level dilatation unit 14, make in alkali lye each dilatation unit in dilatation body 8 to circulate one by one once more, in each circulation, all carry out heat treated by outer heater 11; Main effect is that liquid is forced to promote with circulating pump 19 in certain working range, delivers to outer heater 11 and carries out heat treated.Liquid after heating enters in the first order of dilatation unit 14, because the effect of vacuum difference is back in the last level dilatation unit 14 import that enters circulating pump 19 again through piping, constantly circulation.Because liquid is circulating, the evaporation rate of dilatations at different levels unit 14 is more high than the static heat exchange.
10, concentrated base circulation: after catching liquid, carry out the concentrated base circulation again, when evaporation,, carry out spraying and sprinkling evaporation by spray pump 21 and concentrated base circulation bucket and boiling-house 2 once more for the alkali lye that does not reach desired concn, to improve the concentration of alkali lye, the alkali lye that reaches concentration is then discharged by concentrated base outlet 25.
Claims (7)
1, continuous volume expanding evaporator, comprise several dilatation unit (14) that are positioned at dilatation body (8), side at dilatation body (8) is provided with heat extraction chamber (5), the output of heat extraction chamber (5) connects after-heater (4), and big liquid trap (3) and concentrated base outlet (25) is set on boiling-house (2); The top that reaches in the heat extraction chamber (5) in each dilatation unit (14) is provided with condenser (28), bottom in each dilatation unit (14) is provided with evaporating pan (32), utilize condenser pipe (7) to be interconnected between the condenser (28) of adjacent two dilatation unit (14), the evaporating pan (32) of adjacent two dilatation unit (14) utilizes mozzle (33) to be interconnected; On each dilatation unit (14), gutter spout funnel (36) is arranged, gutter spout funnel (36) is gone up the condensate pipe (30) that is communicated with condensed water bucket (18) is set, useless light alkali inlet tube (16) is set under heat extraction chamber (5), the condenser (28) of first order dilatation unit (14) go up be provided with outside the feed tube (12) that is communicated with of heater (11), the discharging tube (9) of outer heater (11) is communicated with the evaporating pan (32) of first order dilatation unit (14), and outer heater adopts steam trap that condensed water in the heater is discharged.
2, continuous volume expanding evaporator as claimed in claim 1, it is characterized in that: the output at big liquid trap (3) utilizes pipeline to connect water ejector (1), the import of this water ejector (1) is connected with jet pump (23), outlet is provided for connecting the pipeline of pond (24), and the output of big liquid trap (3) is connected with its negative pressure mouth.
3, continuous volume expanding evaporator as claimed in claim 1 is characterized in that: utilize pipeline to connect spray pump (21) and concentrated base circulation bucket (20) on boiling-house (2), spray pump (21) interconnects with concentrated base circulation bucket (20).
4, continuous volume expanding evaporator as claimed in claim 1 is characterized in that: in the bottom of each dilatation unit (14) blow-off line (34) is set; The condenser (28) of each dilatation unit (14) utilizes condenser pipe (7) to interconnect from left to right successively; The evaporating pan (32) of each dilatation unit (14) utilizes mozzle (33) to connect successively from right to left; Vacuum tandem tube (31) is set between adjacent two dilatation unit (14), goes up installation at every vacuum tandem tube (31) and be used to regulate the adjustment sheet of vacuum.
5, continuous volume expanding evaporator as claimed in claim 1, it is characterized in that: in dilatation unit (14), one side of condenser (28) is provided with water fender (29), in the inwall of dilatation unit (14), the top of water fender (29) water reception tank (27) of collecting condensed water is set, the deflector (35) of guiding flow action has been set between water reception tank (27) and water fender (29), gutter spout funnel (36) has been set behind water fender (29).
6, as claim 1 or 4 described continuous volume expanding evaporators, it is characterized in that: an end of mozzle (33) points to the bottom of dilatation unit (14), and the end of this end is lower than the bottom of evaporating pan (32); The upper end of mozzle (33) is connected with evaporating pan (32) in the next stage dilatation unit; Bottom at evaporating pan (32) is provided with aperture.
7, continuous volume expanding evaporator as claimed in claim 1 is characterized in that: utilize pipeline to connect circulating pump (19) in bottom, heat extraction chamber (5) and be connected with condenser (28) arrival end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200465998U CN201105168Y (en) | 2007-10-19 | 2007-10-19 | Continuous capasity-enlarging evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200465998U CN201105168Y (en) | 2007-10-19 | 2007-10-19 | Continuous capasity-enlarging evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105168Y true CN201105168Y (en) | 2008-08-27 |
Family
ID=39956954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200465998U Expired - Lifetime CN201105168Y (en) | 2007-10-19 | 2007-10-19 | Continuous capasity-enlarging evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105168Y (en) |
-
2007
- 2007-10-19 CN CNU2007200465998U patent/CN201105168Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Redflag Printing & Dyeing Machinery Co., Ltd. Assignor: Yu Guoxing Contract fulfillment period: 2008.12.28 to 2013.12.27 Contract record no.: 2009320000434 Denomination of utility model: Continuous volume expanding evaporator and using method thereof Granted publication date: 20080827 License type: Exclusive license Record date: 20090319 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.28 TO 2013.12.27; CHANGE OF CONTRACT Name of requester: JIANGSU HONGQI PRINTING AND DYEING MECHANICAL CO., Effective date: 20090319 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071019 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071019 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |