Lamellar water water-desalinating installation of firm "Alfa Laval"

Conversion of sea water into fresh water by vacuum distillation. Working principle. Cross-section of the camera of the distiller N1 REX. Installation and basic equipment. Complete information and documentation accompany. Alfalaval Freshwater Generator.

Отправить свою хорошую работу на сайт просто. Используйте форму, расположенную ниже.

Подобные работы

Don't kill the World
Air, water and soil as necessity for existence of all living things. Importance of solving the environmental problems that endanger people's lives. Water and air pollution. Pesticides, rubbish and poison-beware. Reduction of pollution. Drainage systems.
доклад [27,1 K], добавлена 08.01.2011
2.

Influences that affect the business environment of Hydrolife Bottlers Company in Uzbekistan
Estimation of influence of economic growth, level of incomes of the population, the interest rate, inflation and exchange rate on company Hydrolife activity. Hydrolife Company the company which makes potable water and water with useful minerals.
реферат [15,8 K], добавлена 31.01.2012
3.

Microemulsions. Properties and Applications
A Phase Diagram Approach to Microemulsions. Percolating Phenomenon Microemulsions: Effect of External Entity. Influethylene of Polyethylene Glycols and Polyethylene Glycol Dimethyl Ethers upon the Internal Dynamics of Water in Oil Microemulsions.
презентация [8,7 M], добавлена 07.12.2010
4.

Environmental problems in Arkhangelsk region
Threat of ecological accident as a result of business activity of the person. The industrial enterprises polluting atmosphere. Growing number of the illnesses caused by an air way and pollution of water. Environmental problems in the Arkhangelsk region.
топик [10,3 K], добавлена 04.02.2009
5.

The history of cameras
Joseph Niepce as the first photograph. The birth of modern photography. Negative to positive process. The first camera with a uniform mirror lens. Evolution and color photographs. Digital camera, modern functions and main technological boundary.
презентация [1,2 M], добавлена 25.02.2012
6.

Understanding the text
Reading the article. Matching the expressions from the first two paragraphs of this article. Answer if following statements true or false or is it impossible to say, are given the information in the article. Find adjectives to complete some definitions.
контрольная работа [33,0 K], добавлена 29.04.2010
7.

Pragmatics: rules of conversation
Theoretical Aspects of Conversational Principles: рhilosophical background, сooperative principle by H.P. Grice, сonversation implicatures. Applied Aspects of Conversational Analysis. Following, fаlouting the cooperative principle. Maxims of conversation.
курсовая работа [28,1 K], добавлена 08.06.2010
8.

Ways of teaching foreign languages
Comparing instructed and natural settings for language learning. Natural and instructional settings. Five principles for classroom teaching. The principle getting right from the beginning. The principle of saying what you mean and meaning what you say.
дипломная работа [54,3 K], добавлена 10.07.2009
9.

Business English
Consideration of the nature of the business. Definition of basic forms and principles of its organization. Provide basic information on marketing and personnel management. Accounting organization in the enterprise. Basics of international trade.
учебное пособие [36,1 K], добавлена 24.03.2011
10.

The constitution the Kazakhstan and Czech Republic
Features of the Constitution states: development and history of the formation, structure and basic elements, articles, laws. Similar and distinctive features. Comparison of the human rights section. Governance, management and system of government.
эссе [16,2 K], добавлена 09.03.2012
11.

Understanding Maya
Maya is a character animation and visual effects system designed for the professional animator. To understand how Maya works at a conceptual level. The user interface and marking menu. Perspective and orthographic cameras. Image planes onto the camera.
лабораторная работа [4,8 M], добавлена 05.06.2009
12.

The effective utilization of information resources
Ability of the company to reveal and consider further action of competitive forces and their dynamics. Analysis of environment and the target market. Functional divisions and different levels in which еhe external information gets into the organization.
статья [10,7 K], добавлена 23.09.2011
13.

Agricuture in Ukraine
Сharacteristics of the current state of agriculture in Ukraine, including an analysis of its potential, problems and prospects of development. Description of major agricultural equipment used in Ukraine. Features of investment in agriculture in Ukraine.
реферат [23,8 K], добавлена 28.06.2010
14.

Modern Means of Business Communication
Business as a combination of types of activities: production, distribution and sale, obtaining economic profit. Basic types and functions of banks. The principle of equilibrium prices and financial management. The use of accounting in the organization.
контрольная работа [17,8 K], добавлена 31.01.2011
15.

Cognitive aspects of lexicon in the light of the language picture of the world
Information access and exchange. Cognitively Salient Relations for Multilingual Lexicography. Work in Cognitive Sciences. Transcription and Normalization. Mapping to Relation Types. Clustering by Property Types. Information about synonyms and antonyms.
реферат [24,6 K], добавлена 28.03.2011
16.

Information Systems Security
The computer systems and unique possibilities for fulfillment before unknown offenses. The main risks and threats to information systems security in the internet. Internet as a port of escape of the confidential information and its damage minimization.
контрольная работа [19,6 K], добавлена 17.02.2011
17.

Working capital
The availability of sufficient working capital enterprises optimal structure - a prerequisite for normal functioning in a market economy. Company's current assets is one of the main objects of Financial Management submitted in cash and monetary system.
реферат [53,3 K], добавлена 07.05.2011
18.

Comparative Analysis of Word Building in Prose and Poetry on the basis of E.A. Poe's works
Word Building as a part of Lexicology. The Ways of Word Building: affixation, conversion, abbreviation, composition. Role of word building a relevant in prose and poetry in E. Poe’s works; to investigate which of them are the most frequent and productive.
дипломная работа [179,9 K], добавлена 22.05.2012
19.

The Marx’s class
A discussion of the political problems of proletarian revolution some clarification on a number of points in Marx’s social theory. The proletariat is the working class peculiar to capitalist relayions of production in Marx’s theory. Working-class circles.
реферат [39,1 K], добавлена 23.06.2010
20.

Evaluation of different types of internet crimes
Occurrence of new crimes in connection with development of new technologies and computerizations. The review and the characteristic of the most widespread internet crimes, ways of struggle against them. Methods of protection of the personal information.
эссе [15,3 K], добавлена 15.03.2012

Другие подобные документы

Министерство Образования Украины

Азовский Морской Институт

Одесской Национальной Морской Академии

Пластинчатая водоопреснительная установка фирмы «Alfa Laval»

Lamellar water water-desalinating installation of firm "Alfa Laval"

Подготовили:

курсанты III-ЭСЭУ-I

Шиян А.В.

Мариуполь,2009

The JWP-26-C series covers a capacity range from 4 to 35 m / 24h, depending on the heating medium and cooling water temperatures. The shown capacities are at a cooling water temperature of32°C.

Distillers can be dimensioned to suit any jacket water temperature from 55-95°C and any cooling water temperature required. The quantity of fresh water C and any cooling water temperature required. The quantity of fresh water produced can be altered within each size by varying the number of plates in the heat exchanger assemblies

Application

Conversion of sea water into fresh water by vacum distillation for the supply of high quality fresh water for domestic and process utilization. For installation on ships and rigs* and remote onshore locations. The JWP-26-C is designed for automatic operation with continuous control of freshwater quality.

Features

* Simple, compact design

* Titanium heat exchanger plates and other seawater resistant materials (non-coated)

* Combined condensor cooling, ejector water and feed water system

* Freshwater control system

Benefits

* High quality freshwater, the low content of dissolved solids

(salinity) ensures the supply of pure water which can be used directly as make-up for steam boilers.

* Long lifespan. High grade, corrosion resistant materials, such as the titanium plates, ensure a long lifetime for the equipment.

* Low operation and maintenance costs. Start-and-forget operation, combined with the easy access to the interior, reduces man-hours required for operation and maintenance to a minimum.

* Simple installation due to compact design, low weight and the possibility to assemble on the spot.

Working principle

The feed water to he distilled is taken from the sea cooling water outlet of the condenser. It enters the evaporator where it evaporates at about 40 50 C as it passes between the plates heated by the heating medium.

The evaporating temperature corresponds to a vacuum of 90-95%, maintained by the brine/air ejector. The vapours generated pass through a demister where any drops of seawater entrained are removed and fall due to gravity to the brine sump in the buttom of the distiller chamber. The clean freshwater vapours continue to the condenser, where they condense into fresh water as they pass between the cold plates cooled by the sea cooling water. In order to check continuously the quality of the produced fresh water, a salinometer is provided together with an electrode unit fitted on the fresh water pump delivery side. If the salinity of the produced fresh water exceeds the permitted maximum value fl pprn/, the selenoid valve and alarm are activated to dump automatically the produced fresh water to the bilge.

Cross-section of the camera of the distiller N1 REX

1. Seawaterfeed

2. Heating medium in

3. Heating medium out

4. Sea water cooling in

5. Seawater cooling out

6. Fresh water out

7. Evaporated steam

8- Demister

9- Condenser

10. Evaporator

11. Brine out

Installation

The JW26-C freshwater generator is designed for automatic operation in periodically unmanned engine rooms and other automated operations.

The heating medium is either engine jacket cooling water or a closed circuit heated by steam.

The ejector pump is separately installed and has separate suction from the sea chest. This pump supplies coolant in the form of sea water to the condeser, feed-water for evaporation and water for the combined brine/air ejector. The fresh water produced is pumped to the tank by the built-on freshwater pump.

The separately installed control panel* with motor starters and salinometer, supplies electrical power to the ejector and fresh water pumps and control voltage to the salinometer and dump valve.

Basic equipment

Freshwater generator unit, including titanium plate exchangers for evaporator and condenser, distiller shell, two stage brine/air ejector, freshwater pump, freshwater control sensor and internal piping.

Additional equipment necessary for operation

* Combined cooling and ejector water pump with electrical motor

* Control panel with motor starters and salinometer

* Feed-water anti-scale chemical dosing unit (necessary at heating medium temperatures above 75°Q

Optional equipment

* Steam injector system type JWSP and SP

* Equipment for steam boosting and hot water loop system

* Extended control panel with motor starters and salinometer

* Freshwater pH adjustment (rehardening) filter

* Freshwater disinfection equipment

* Connections according to ANSI and JIS standard

Technical documentation

Complete information and documentation accompany each freshwater generator.

The Installation Manual gives all information necessary for correct installation:

* Plant description

* Installation

* Technical data and drawings

The Instruction Manual gives all information necessary for operation and maintenance:

* Plant description

* Operating instructions

* Chemical dosign of anti-scale chemicals

* Trouble shooting

* Maintenance of major components

* Spare parts drawings ¦Technical data and drawings

Alfalaval Freshwater Generator as an integral part of cooling water system

1. Alfa Laval Freshwater Generator

2. Diesel engine

3. Jacket water circulation pump

4. Thermostatic valve (too low temp, control)

5. Thermostatic valve (too high temp, control)

6. Jacket water cooler

7. Ejector/cooling water pump

8. Fresh water pump

9. Booster heater, optional

10. Hot water circulation pump, optional

11. Manual bypass valve

12. Fresh water storage tank

Starting procedure:

1. Open valves on the suction and discharge side of the ejector pump.

2. Open overboard valve for combined air/brine ejector.

3. Close air valve on the upper part of the separator vessel.

4. Start ejector pump.

5. When there is a minimum of 90% vacuum, open hot water inlet and outlet valves /from jacket cooling system/.

6. Start hot water supply to evaporator section by adjusting by-pass valve, until the disired jacket water temperature is reached / inlet 75°C, outlet 60°C /. The boiling temperature inside the separator vessel ought to be about 40°C.

Improper hot water flow / adjust by-pass / will cause the following effects:

a. in case the flow is too low - low boiling temperature, drop the fresh water production / high brine level in sight glass in separator vessel /

b. in case the flow is too big - high boiling temperature, drop of fresh water production, increase of salinity and drop of vacuum / low brine level in sight glass in separator vessel /.

7. Swith on salinometer.

8. Start fresh water pump.

During the first few minutes, after fresh water pump starts, salinity of produced water may be higher than 2 ppm, thus it is recommended to dump it to bilge / open valve on the discharge side of fresh water pump /. When evaporation starts, the boiling temperature rises, while the obtained vacuum drops to aprox. 90%. After few minutes normal vacuum and boiling temperature is re-established.

Stopping procedure:

1. Stop hoi water su p p ly to evaporator section.

2. Stop fresh water pump.

3. switch off salinometer.

4. Stop ejector pump.

5. Open air valve.

6. Close valves on the suction and discharge side of the ejector pump.

7. Close overboard valve for combined air/brine ejector.

Main dimensions and service area

Size	L	D	H	SD	Weight	Pump
	mm	Inches	mm	Inches	mm	Inches	mm	Inches	Kg	Lbs	mm	inches
JWP-26-C80	1010	39.8	970	38,2	1300	51,2	1470	57,9	600	1323	400	1575
JWSP-26-C80	1010	39,8	1220	48	1300	51..2	1720	67.7	710	1566	X	X
SP-26-C80	1010	39,8	1220	48	1300	51,2	1720	67,7	700	1544	635	25
JWP-26-C100	1175	46.3	1495	58.9	1425	56.1	1995	78.5	820	1808	450	17.7
JWSP-26-C100	1300	51.2	1725	67 9	1425	56.1	2225	87.6	955	2106	X	X
	1300	51.2	1725	67,9	1425	56.1	2225	87.6	945	2084	820	32.3

The designation, 80/100, in the type designation indicates the diameter of inlet and outlet flanges for jacket water and seawater connections.