Steam Sparger
Why Choose Us?
Sales Market
Our products are shipped to the UK, Germany, France, Italy, Poland, the USA, Canada, the Netherlands, Sweden, Austria, New Zealand, Singapore, and India, serving more than 100 customers in the automotive industry.
Our Certificates
China Welong was founded in 2001 and is certified by ISO 9001:2015 and the API-7-1 quality system. We are dedicated to the development and supply of customized metal parts used in various industries.
Our Products
Welong's main capabilities include forging, sand casting, investment casting, centrifugal casting, and machining. The materials we work with include iron cast, steel, stainless steel, aluminum, copper, zinc, and various alloys.
Our Service
We have experienced staff and engineers who assist in improving and modernizing production processes to save costs. We can also help you control quality during production, inspect products, and monitor delivery times. We offer reasonable pricing, ensure product specifications and standards are met, and provide effective packaging.
Item: Washing Machine Door Frame
Material: SS304
Weight:36kg
Process: Casting
Item:Metal Bellow
Material: AISI 321+304
Weight:0.3kg
Process: Extruding+machining+welding
Item: Cylinder Back Hub
Material: SS304L
Weight:243kgs
Process:Open die forging+Machining
Products Description The cast membrane ring is a commonly used industrial sealing component that finds wide application in various equipment and systems. Here is a description of the cast membrane ring: Features High Pressure Resistance: The cast membrane ring is fabricated using high-strength...
Item: Washing Machine Door Frame
Material: SS304
Weight:36kg
Process: Casting
What is Steam Sparger
In industrial settings, steam is often used for heating liquids. The heat is delivered to the liquid either through a heat exchanger or by direct injection of steam.
The process of injecting steam directly into the liquid is called steam sparging. The design and productivity levels of the steam sparger affect the end result.
Energy Efficient
Compared to indirect heating methods, such as shell-and-tube or plate-and-frame heat exchangers, and inefficient direct methods, such as tank steam sparging, direct steam injection heaters can reduce fuel costs dramatically-by up to 28%. This is because 100% of the available energy from the steam is instantly absorbed by the liquid.
Exceptional Temperature Control
Direct steam injection heaters adapt quickly to load changes, maintaining precise temperature control within 1°C. Accurate temperature control throughout the entire operating range conserves energy and ensures product quality.
Wide Operating Range
These heaters offer unlimited turndown in both process flow rates and heat load, resulting in energy savings and accurate temperature control.
No Steam Hammer
The unique variable-orifice injector automatically maintains a minimum differential between steam and water pressures, eliminating harmful vibration and steam hammer.
Low Noise Level
Direct steam injection heaters operate at a low noise level, typically below 85 dBA, which is significantly quieter than venturi or choke-flow type heaters.
Direct Steam Injection works by injecting steam directly into a process fluid, which results in more rapid heat transfer and more efficient energy use compared to indirect heat exchangers. This efficient heating process is achieved through the Hydroheater's ability to control both steam flow and mixing turbulence using a modulating stem plug and a nozzle or diffuser assembly. The precise mixing of a measured amount of high-velocity steam with your liquid or slurry provides instantaneous heat transfer from steam to the fluid. This method of heat transfer allows for 100% thermal efficiency and energy savings of 20-25%.
A precisely engineered, variable-area steam nozzle or diffuser meters the flow at the point of injection and contact with the fluid. The large pressure drop from full steam pressure to the process fluid pressure ensures high-velocity choked steam flow and instantaneous mixing of the two streams. When steam flow is choked, its velocity at the nozzle or diffuser exit remains constant, regardless of the total mass flow injected. The internally modulated heaters control the injection area (the cross-sectional area of the nozzle or diffuser opening) to regulate the heat load precisely. The constant steam velocity results in consistent and stable operation across the full range of operations.
Patented direct steam injection heaters use direct heat exchange to transfer 100% of the steam's energy for heating liquids and slurries over a wide range of viscosities and solid contents to precise temperatures. Internal modulation ensures exact steam control, rapid temperature management, and predictable results. Each heater is designed with internal trim custom-tailored to meet the specific needs and requirements of each customer.
Properties of Steam
As water is heated in a vessel, it boils, and some of it turns into a vapor called 'wet' steam. If heated further, the water is completely boiled away, and the vapor becomes saturated vapor. If the vapor is heated even more, it turns into superheated steam, where the water molecules are at very high energy levels.
Pressure also affects the amount of energy in steam. Water at sea level boils at 100°C (212°F), while on top of Mount Everest, it boils at a lower temperature. In a pressure cooker heated on a stove, water boils at a higher temperature. Higher pressure allows for higher temperature and more energy.
Heating Liquids with Direct Steam Injection
Injecting steam directly into a liquid puts high-energy steam molecules in direct contact with the liquid molecules. The energy transfers from the hotter steam molecules to the colder liquid molecules, warming the liquid. As more steam is injected, the liquid's temperature rises toward that of the steam.
The temperature rise that one kilogram of steam can induce in one kilogram of liquid depends on the liquid's ability to absorb energy. This ability is known as the liquid's specific heat capacity, which is the energy required to raise the temperature of one kilogram of the liquid by one degree Celsius. By determining the specific heat capacity of the liquid, we can calculate the amount of steam needed at a certain temperature and pressure to heat the liquid.
Connecting Sparges to the Equipment
Steam sparging can generate significant vibration, especially when there is a large pressure difference between the steam pressure and the process pressure. As pressure drops, steam expands. To maintain flow through the pipe, the steam speeds up as it transitions from high pressure to low pressure. This increase in velocity causes vibration, which can gradually wear away the sides of the exit holes if the velocity is high enough.
Sparges welded into vessels require large, thick compensating plates to distribute the vibration over a larger weld area. If the weld area is too small, it may crack due to work hardening caused by the vibrating sparge. This is particularly important for stainless steel vessels, as stainless steel has low resistance to work hardening.
Steam Jet Heaters Types
Continuous Heater
Designed for direct connection to water and steam lines, this heater mixes steam with cold water and discharges hot water under pressure.
Simplex Heater
Combines liquid under pressure with steam at a higher pressure.
Slurry Heater
Facilitates the simple pumping of semi-solids to process applications involving reactions caused by the addition of steam.
Quiet Heater
Mixes steam, atmospheric air, and water to reduce noise and vibration associated with tank heating by steam.
Sparger Nozzle
Recommended for cases where heating from a shallow level is desired; designed for threading into sparger pipes installed along the bottom of a tank.
Circulating Heater
Recommended where heating and strong directional circulating action in open tanks are required.
Direct Contact, High Capacity, Multi-Spray Steam Heater
Suitable for very large quantities of hot water; designed to prevent flooding and to heat water close to the steam saturation temperature.
Direct Contact, High Capacity, Counter-Current Steam Heater
Operates with water and steam flowing in opposite (counter) directions and is effective with internal pressures above and below atmospheric pressure.
Direct Contact, High Capacity, Continuous Steam Heater
Heats a liquid under pressure with steam by direct contact and should not be used if air and other non-condensables are present.
Steam jet heaters are used to heat liquids through the direct injection of heating steam. The condensate from the heating steam mixes with the liquid being heated.
Steam jet heaters are employed to prepare hot water for various purposes, such as:
●Barrel rinsing water in malting plants
●Warm water for pickling, dyeing, and greases in tanneries
●Water for washrooms and bathrooms
●Heating sewage sludge and boiling lye, among others
Mode of Operation
There are generally two different construction forms, depending on the application:
●Steam Jet Heaters for Vessels (aw1)
●Steam Jet Heaters for Installation in Pipes and for Passage or Circulation Heating Systems:
–Type "L" (aw4)
–Type "H" (aw5)
–"System Ciba-Geigy" (aw6)
Noises Pertaining to Steam Injectors
When using high-pressure steam injectors, three distinct noise levels are produced under the following conditions:
When steam pressures at the injector inlet are above 2 bar gauge (g), the noise produced during normal operation can be described as a soft roar. This noise results from the condensation of steam inside the discharge tube as it mixes with recirculating water drawn through holes into the casting body. Under normal conditions, the discharge from the injector tube is approximately 10°C hotter than the incoming water. This type of noise increases with steam pressure, water temperature, and the number of injectors, but it is rarely objectionable at steam pressures below 8 bar g. Although strong circulation of the tank contents occurs at pressures above 8 bar g, little vibration should be experienced.
This is characterized by a soft bumping noise and is sometimes accompanied by heavy vibration. It occurs when the liquid temperature is too high (usually above 90°C). When the liquid is too hot, the injector becomes less efficient, and a proportion of the steam escapes from the discharge tube. At higher steam pressures, incomplete condensation may cause vibration, which is not recommended for atmospheric tanks. However, in robustly designed cylindrical pressure vessels, this may not cause significant problems.
When the steam pressure at the inlet to the injector falls below 1.5 bar g, a distinctive crackling noise can be heard. Under these conditions, steam is unable to release its enthalpy of evaporation before it leaves the injector tube. At low flow rates, the steam travels at a lower velocity than in other operating modes, leading to collapsing steam bubbles on the body casting and in the connecting pipework, which induces cavitation. This noise is often considered objectionable and may occur if the steam injector system is oversized. Noise may also be caused by poor installation of the injector. If the sides of a rectangular tank are made from relatively flexible panels, connecting an injector to the middle of a flexible panel may induce vibration and noise. It is often better to mount the injector nearer to the corner of the tank, where the structure is stiffer.
Technology of Steam Sparger
Steam injection heaters use a specialized system of perforated injection tubes to introduce steam into a liquid or slurry, providing almost instantaneous heat transfer to the liquid. Typical applications include clean-in-place (CIP) systems, tank cleaning, wastewater treatment, hose stations, and similar processes where it is critical to maintain a specific temperature range. Direct steam injection is the most efficient method of heating water, as 100% of the BTUs from the steam are transferred into the water being heated, with none lost as condensate.
Constant-Flow
The constant-flow design is suitable for applications requiring a specific, consistent flow rate, one that varies only slightly (i.e., 3:1 turndown), or where flow variations are gradual and on/off cycling does not occur.
Variable-Flow
For applications with varying flow rates over a wide range, the variable-flow design is ideal. It accommodates significant variations in demand and frequent start/stop cycles, such as in multiple-use points.
Custom Fabrication & Sanitary Designs
Steam spargers for tank heating, as well as sanitary designs for food and pharmaceutical applications, and multi-zone heat/cool skids are often supplied with these devices as a system.
Our Factory
China Welong was founded in 2001, which is a professional international integrated supply chain service provider. We are concentrating on the industrial customized metal products, aiming at empowering the world with the finest supply chain of China. Since the establishment, we are offering Supplier Development & Management, Purchasing Supervising, Quality Control services in China for many leading enterprises in the fields of International Industrial Manufacture, Oil Drilling, Aerospace & High-end Medical Treatment.
Certifications
FAQ
Q: Is steam sparging necessary?
It is essential for several reasons. It facilitates heat transfer in various industries, including chemical, pharmaceutical, and food processing. Without proper steam sparging, these processes may suffer from inefficiencies, leading to suboptimal results and potentially compromising the overall quality of the product.
Q: What is steam sparger?
Q: How does a Sparger work?
Q: What does a sparge tube do?
Q: What is the maximum temperature for sparge?
Q: What is the advantage of steam injector?
Q: What are the different types of steam injection?
Q: What is the difference between steam injector and steam ejector?
Q: What is the purpose of a steam ejector?
Q: What is the suction pressure of a steam ejector?
Q: What is the temperature of steam ejector?
Q: How to steam ejector work?
Q: How ice is formed in steam ejector?
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