CN101050923A - Self cleaning method for condenser - Google Patents
Self cleaning method for condenser Download PDFInfo
- Publication number
- CN101050923A CN101050923A CN 200710049051 CN200710049051A CN101050923A CN 101050923 A CN101050923 A CN 101050923A CN 200710049051 CN200710049051 CN 200710049051 CN 200710049051 A CN200710049051 A CN 200710049051A CN 101050923 A CN101050923 A CN 101050923A
- Authority
- CN
- China
- Prior art keywords
- condenser
- liquid
- cooled
- cleaning
- self
- 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
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A self-cleaning method of condenser includes returning partial condensed liquid of condenser back from condenser liquid outlet to condenser inlet of material to be cooled, atomizing returned-condensed liquid and mixing atomized-condensed liquid with gas-phase material to be cooled to form gas and liquid fog drop mixture then sending formed mixture into condenser for realizing self-cleaning of condenser.
Description
Technical field
The invention belongs to the clean method of condenser, the clean method of the condenser that particularly a kind of material that is condensed (as crystallization, polymerization etc.) that may solidify uses.
Background technology
When condenser at the condensation easy-curing is, there is inhomogeneous, unsettled characteristic owing to mix system, even the solution overall density that condensation is got off does not reach the curing concentration under its corresponding temperature, but supersaturation can appear in the part, is attached on the heat exchanger tube tube wall of condenser thereby form solid.Moreover, because of condenser heat exchanger tube tube wall place flow velocity is lower, can not in time take away the solid that is attached to tube wall.Therefore, the condenser of condensation easy-curing system, its heat exchanger tube tube wall easily generates solid adhesion.In case generate solid adhesion on the tube wall, the condenser heat-transfer effect will variation, when serious even cause condenser to stop up, whole unit can't be remained in operation and be forced to stop and clean.
The existing clean method of this type of condenser is the cleaning of cutting off the water supply between employing, and this just causes system's outage, is not suitable for the stronger Chemical Manufacture of continuity.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of self-cleaning method of condenser is provided, this kind method can prevent to be condensed solidfied material of material deposits on the condenser tube wall, make the condenser tube wall be in clean conditions, thus the problem that solves condenser condenses weak effect, passage obstruction and can not move continuously.
To achieve these goals, by to existing Problems Analysis, take all factors into consideration the following aspects design technology project:
1. reduce the probability that nucleus forms as far as possible;
2. the material direct condenser tube wall of avoiding being condensed prevents the phenomenon of local overcooling;
3. dissolve established solidfied material.
The method of the invention is the part in the condensate liquid that will form through the condenser cooling is back to condenser from the condenser liquid outlet a material inlet to be cooled, the condensate liquid atomizing of returning, enter condenser with gas phase mixing of materials formation gas to be cooled and liquid mist mixture, realize the cleaning of condenser; The described condensate liquid that forms through the condenser cooling is a unsaturated solution.
The method of the invention can realize:
1. partial condensation liquid enters condenser after being back to the material inlet to be cooled place atomizing of condenser, forms the liquid film of " stablize " on condenser heat exchanger tube surface, thereby reduces the probability of nucleus generation.
2. because phegma is a unsaturated solution, local oversaturated solution is " diluent " in the system relatively, thereby has reduced the possibility that solid is separated out.
3. under the cleaning function of the unsaturated solution that returns, make established solid dissolving, thereby prevent that solid matter from depositing on condenser.
Condensate liquid turns back to condenser once more, to the not influence of processing medium concentration, but the amount of returning greatly then consumption of power is many.The amount of returning is according to the gaseous pressure of cooling water flow, cooling water return water temperature and process stream and forms also and determine in conjunction with test.Test shows, the condensing liquid quantity that is back to condenser material inlet to be cooled from the condenser liquid outlet is controlled at 0.5～30% of condensate liquid total amount and is advisable.
The present invention has following beneficial effect:
1, the method for the invention has fundamentally solved the deposition scale problems of solidfied material on the heat exchanger tube tube wall of condenser of the material that is condensed, and a kind of technical scheme of different designs is provided for the cleaning condenser.
2, use the method for the invention, pollution-free to system itself, condenser is realized " self-cleaning " continuously, thereby condensing unit can normally be moved continuously, avoid interim the stoppage in transit to clean, can not only improve production capacity, and can save the maintenance cost of cleaning charge and heat exchanger tube.
3, use the method for the invention, can prolong the service life of the heat exchanger tube of condenser.
4, the method for the invention only need increase by one and returns the liquid delivery pump, and is with low cost, is easy to realize, simple to operate.
5, select the rational condensate liquid amount of returning, helped energy savings.
Description of drawings
Fig. 1 is the process chart of self-cleaning method of condenser of the present invention, and this chart is understood the annexation of returning liquid delivery pump and condenser.
Among the figure, 1-condenser, 2-return the liquid delivery pump, 3-returns the liquid carrier pipe.
The specific embodiment
The structure of the condenser 1 in the present embodiment as shown in Figure 1, the hydrolysis system that is used for urea plant, preceding system---the steam that contains high strength ammonia and carbon dioxide that destilling tower and hydrolyzer come, 110 ℃ of its pressure 0.3MPa, temperature, condensate liquid (40 ℃ unsaturated ammonium fluids) total amount is 20 tons/hour; The temperature of cooling water is that 30 ℃, flow are 600 tons/hour, take away reaction heat after, the cooling water temperature that goes out condenser is 42 ℃; The unsaturated carbon ammonium hydraulic control of returning is built in 2 tons/hour (condensate liquid total amounts 10%).
As shown in Figure 1, preceding system---the pressure 0.3MPa that destilling tower and hydrolyzer come, the steam that contains high strength ammonia and carbon dioxide that temperature is 110 ℃ is through the unsaturated ammonium fluid of 40 ℃ of condenser 1 cooling formation temperatures, under the effect of returning liquid delivery pump 2, cool off 10% (2 tons/hour) of the unsaturated ammonium fluid total amount that forms by returning liquid carrier pipe 3 is back to condenser from the condenser liquid outlet material inlet to be cooled through condenser 1, the unsaturated ammonium fluid atomizing of returning forms gas with the vapor mixing that contains high strength ammonia and carbon dioxide and the liquid mist mixture enters condenser.Because the unsaturated ammonium fluid that returns forms the liquid film of " stablizing " on condenser heat-exchanging tube bundle surface, reduce the probability that nucleus produces, dissolve established solid, thereby prevent that solids from depositing, and eliminated the condenser clogging fully on the condenser heat-exchanging tube bundle.
The invention is not restricted to the foregoing description, it is self-cleaning that the condenser that every cooling easy-curing is all can use method of the present invention to realize.
Claims (2)
1, a kind of self-cleaning method of condenser, it is characterized in that this method is to be back to the material inlet to be cooled of condenser through the part in the condensate liquid of condenser cooling formation from the condenser liquid outlet, the condensate liquid atomizing of returning, enter condenser with gas phase mixing of materials formation gas to be cooled and liquid mist mixture, realize the cleaning of condenser; The described condensate liquid that forms through the condenser cooling is a unsaturated solution.
2, self-cleaning method of condenser according to claim 1 is characterized in that the condensing liquid quantity that is back to condenser material inlet to be cooled from the condenser liquid outlet is controlled at 0.5～30% of condensate liquid total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100490513A CN100494855C (en) | 2007-05-09 | 2007-05-09 | Self cleaning method for condenser for cooling easily condensate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100490513A CN100494855C (en) | 2007-05-09 | 2007-05-09 | Self cleaning method for condenser for cooling easily condensate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101050923A true CN101050923A (en) | 2007-10-10 |
| CN100494855C CN100494855C (en) | 2009-06-03 |
Family
ID=38782458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100490513A Active CN100494855C (en) | 2007-05-09 | 2007-05-09 | Self cleaning method for condenser for cooling easily condensate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100494855C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729312A (en) * | 2015-03-02 | 2015-06-24 | 南京兆博环保科技有限公司 | Device for improving condensation effect of barrier wall type condenser based on partial reflux circulation |
-
2007
- 2007-05-09 CN CNB2007100490513A patent/CN100494855C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729312A (en) * | 2015-03-02 | 2015-06-24 | 南京兆博环保科技有限公司 | Device for improving condensation effect of barrier wall type condenser based on partial reflux circulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100494855C (en) | 2009-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9657972B2 (en) | Solar-biomass complementary thermal energy supply system | |
| CN102249461B (en) | Supercritical water oxidation treatment system for high-salt high-chlorine organic wastewater | |
| CN102092808B (en) | Device for desalinating seawater by utilizing residual heat of tail gas exhausted by diesel engine | |
| CN203959976U (en) | Strong brine function of mechanical steam recompression evaporation and crystallization system | |
| CN102305559A (en) | Shell-and-tube heat exchanger with stock pusher | |
| CN205216222U (en) | Concentrated system of MVR centrifugation thin film evaporation | |
| CN201443932U (en) | Detachable washable spraying ground source heat pump evaporator | |
| CN100494855C (en) | Self cleaning method for condenser for cooling easily condensate | |
| CN102078789B (en) | Diazotization continuous tubular reactor | |
| CN201545809U (en) | Coking coal gas primary cooler and final cooling tower naphthalene plugging clearing device | |
| CN103254943B (en) | Pre-cooling process and device of low-section replenishing liquor of transverse pipe pre-cooler | |
| CN112520804A (en) | High salt waste water flash evaporation concentration system of coupling solar energy collection | |
| CN104445197A (en) | Device for preparing carbon dioxide hydrate | |
| CN101792677B (en) | Device for cleaning naphthalin blockage of coking gas primary cooler and final cooling tower | |
| CN103432919A (en) | Device for preparing ammonium hydroxide by liquid ammonia | |
| CN202620769U (en) | Evaporative crystallization device of easily thermally-decomposed compound for decomposing gaseous product | |
| CN202993916U (en) | Easily cleaned type tubular heat exchanger | |
| CN202844602U (en) | Microwave-heating device for waste acid regeneration | |
| CN214360798U (en) | Novel emulsification evaporation system | |
| CN114772665A (en) | Continuous hydrate method seawater desalination device and method | |
| CN212050618U (en) | Concentrated decrement energy-concerving and environment-protective device of high chlorine waste water | |
| CN210613365U (en) | Waterproof evaporation system suitable for wet desulphurization | |
| CN210559472U (en) | Low-temperature steam evaporation equipment | |
| CN101907409B (en) | Energy saving and temperature reducing technique for gaseous phase materials susceptible to plugging | |
| CN203498515U (en) | Viscose crystallizing and evaporating device |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200721 Address after: No.37 Yuntian Avenue, Yunfu sub district office, Shuifu City, Zhaotong City, Yunnan Province Patentee after: Yunnan Shuifu Yuntianhua Co.,Ltd. Address before: 657800 Zhaotong City, Yunnan province Shuifu County Yunnan Yuntianhua Limited by Share Ltd Patentee before: YUNNAN YUNTIANHUA Co.,Ltd. |
|
| TR01 | Transfer of patent right |