Process equipment / Ejectors
Ejectors
Körting Ejectors can be utilised in numerous application fields. Each ejector is designed thereby individually for its application field and adjusted optimally to its respective utilisation.
A jet ejector requires no mechanical drive and has no moving parts. This basic principle applies to every jet ejector in different models and ranges of application.
Maintenance is kept to a minimum, they are robust, reliable, relatively insensitive to dirt, always ready for use, and self-priming and therefore especially suitable for all operating conditions. Further advantages of ejectors are their simple installation, low investment costs and the use of materials which are resistant to corrosion and erosion.
| Materials: | Staal, Gietijzer, Kunststof, Roestvrij staal |
Product variations
Steam jet heaters
Hot water is an indispensable medium in industrial processes. Washing, heating, sterilizing and rinsing are possible applications, and the list can be extended at will. There are various ways of producing hot water. The condensation of steam is probably the most commonly used method of producing hot water. Mixing water with steam makes this process extremely flexible; depending on the mixing ratio the temperature of the water can be selected within a wide range. Although water and steam represent the same chemical substance in different states of aggregation, their uncontrolled confrontation tends to be rather hostile. Condensation shocks, vibrations, noise and material destruction are known consequences of uncontrolled condensation.
In order to ameliorate or even avoid such phenomena, a variety of devices has been developed. Correct choice of suitable equipment depends, on the one hand, upon the process for which it is to be used, and on the other hand upon the specific operating conditions.
Two main groups of heaters: Self-priming and with water supply
Accordingly, the difference between these two kinds of heaters is to be found not in the actual heaters themselves but above in the mode of integration in the overall system. Whereas the heaters of the first group draw in the water to be heated themselves according to the principal of the jet pump, the devices belonging to the second group require a supply unit for the water, such as a centrifugal pump or gravity feed.
Self-priming heaters
- Fitted steam jet heater
- Steam jet circulation heater
Heaters with water supply
- Steam jet flow heater
- Steam jet heater ORK
Liquid jet ejectors
Liquid jet ejectors are used as : ventilators, vacuum ejectors, liquid- and solid ejectors.
Liquid jet ventilators using a liquid as motive medium suck off large gas volume flows. This is possible because only slight pressure differences must be overcome. Simultaneously dust, deposits and vapors can be washed out of the suction flow.
Chemical industry : to wash out dust deposits and vapors.
Sugar industry : to heat up washing water, to rinse out dust from sugar beet chips.
General : as component parts of plants for dedusting, absorption and gas cooling with jet scrubbers and venturi scrubbers
Liquid jet vacuum ejectors suck off gases and/or vapors from a process. The lowest possible suction pressure in the reactor is only limited by the vapor pressure of the motive liquid. It is possible to compress to atmospheric or even higher pressure.
Shipbuilding : evacuation of suction pipelines of non-self-priming centrifugal pumps
Sea-water evaporators :generation of the necessary vacuum
Dredgers : de-gassing of the dredged materials (removal of natural gas)
Power plants : evacuation of turbine condensers
Chemical industry : evacuation of condensers and removal of air-/product vapor mixes in vacuum processes.
Liquid jet liquid ejector. A liquid motive medium is used to suck off another liquid and to convey it to a higher pressure. High turbulence achieves a homogeneous intermixture of both flows. Classical application in the shipbuilding industry (bilge of ballast tanks)
Ship-building : pumping and cargo out bilges, chain lockers, holds ballast tanks
Water treatment : dilution of lyes and acids
Foodstuffs- and chemical industry : pumping and mixing of diverse liquids
Synthetic fertilizer plants (UREA plants) : pumping “carbamate”-solution back to the Urea-reactor
Hydroelectric power stations : emergency drainage of pump pits
Sea-water evaporators : conveying concentrated sea-water
Liquid jet solids ejector. A liquid motive medium is used to convey solids. The solids are either introduced via a funnel or they can also be sucked in. A carrier medium e.g. water or air is mixed in to improve the delivery effect.
Water treatment : conveying filter materials such as activated carbon, gravel, exchange resins ; conveying lignite dust in activated sludge.
Ship-building : pumping water/solids mixtures out of the deep ; laying of marine cables ; conveying ash/air mixtures from incineration systems on passenger ships.
Thermocompressors
Gas jet compressor
Using a gaseous motive medium, gas jet compressors compress gases or vapors with a large pressure differences.
Applications :
Gas supply
- Mixing of evaporated liquid gases (propane, butane) with air.
- Conveying and mixing of natural gases.
- At gas storage tanks and under- ground high-pressure sensors.
Chemical industry
- At loading points for liquid mineral oil products to prevent emissions.
Speciality
- As a controllable unit fitted with a nozzle needle.
Steam jet compressor
Using water vapor as motive medium, steam jet compressors compress gases and/or vapors with large pressure differences.
Applications :
General
- Compression of low-pressure steam with high-pressure steam as motive medium for feeding into medium pressure systems.
Chemical industry
- Heating of distillation columns.
Foodstuffs- and chemical industry
- As components of evaporating systems, e.g. for milk, fruit juices, waste water, chemicals, sea water.
- To cool and concentrate liquids.
Paper industry
- In steam- and condensate systems of single- and multi- cylinder machines.
- To increase pressure in steam systems/to increase performance capacities of paper machines.
- In connection with steam boxes to utilise low-pressure steam
Breweries
- Re-utilisation of vapors coming from the boiling process.
Cellulose-industry
- Steam recovery in “TMP” systems.
Petrochemical industry
- Removal of column head vapors.
Speciality
- As a controllable unit fitted with a nozzle needle.
Liquid jet gas compressor
Using a liquid as motive medium, liquid jet gas compressors compress gases or vapors with large pressure differences. There is a special ejector design for mixing air or other gases with the motive liquid or for aerating waste water. These ejectors operate at a high gas/liquid mass transfer rate with simultaneous intensive mixing of the liquid itself.
Applications
Foodstuffs industry
- Hydrogenation of edible oils
Treating drinking water
- Introducing ozone into drinking water
- De-acidification of potable water
- Introducing CO2 into drinking water
Chemical industry
- Introducing Cl2 gas into EDC-Plants
Biological sewage treatment
- Waste water aeration
- Introducing ozone into waste water
- Iintroducing gaseous oxygen into waste water
- Aeration and intermixing in SBR-plants
- Activated sludge process
- Aerobic sludge stabilisation
- Nitrification of waste water
- Neutralisation of alkaline waste water with flue-gas or CO2
Flotation
- As saturation in the pressurised dissolved air flotation.
Lake rehabilitation
- Deep water aeration
Gas jet ejector
Gas jet vacuum ejector
Gas jet vacuum ejectors remove gases and/or vapors from process operations thereby generating a vacuum in the reactor. The suction flow is compressed to a higher pressure.
Applications :
Ship-building and chemical industry
- Evacuating suction pipelines of non-self-priming centrifugal pumps
- Indirect conveyance of liquids, e.g. for taking samples
Chemical industry and power plants
- As a pre-connected stage for liquid ring pumps to lower the suction pressure
Aluminium production
- Indirect conveyance of liquid aluminium
Gas jet liquid ejector
A gaseous motive medium is used to suck and transport liquids.
Applications :
For subsidiary cases, e. g. very small amounts of liquid during batch operation. The specific energy-consumption is very high.
