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GB.T19447 Heat Exchanger Tube OD 12.7MM For Condenser Washed Surface 1

CU-DHP Heat Exchanger Tube Pipe Washed Surface ASTMB68 Standard

OEM OD 25.4mm Heat Exchanger Copper Tube CU-DHP C12000 Material 2

The Extruded Fin Tube also known as� Bimetallic Fin Tube� is one of the most preferred finning processes for various applications.

Manufacturing process:
Fin is produced by the rolling method (three-roll oblique rolling). Its working principle is: The smooth tube is lined with a mandrel, the tube material is driven by the roller blade to make a spiral linear movement, and is rolled by the roller. The hole pattern composed of the groove and the core rod is gradually processed with fins on its outer surface. In order to facilitate the formation of fins, the rolling parts adopt three stages of biting, rolling, and shaping during the deformation process, so that the processed fins are complete, smooth, and regular. The finned tube produced by this method is based on the base tube and the outer fin is an organic whole, so there is no problem of contact thermal resistance loss and electrical corrosion. It has good heat transfer efficiency and strong resistance to deformation. Extruded finned tubes consist of a light pipe and fins â??attachedâ?? to it. The structural parameters are mainly the inner diameter and outer diameter of the finned tube, the wall thickness of the finned tube, the fin pitch, the fin thickness and the fin height.

Material Options:
We offer the widest range of material in the industry and can extend it on request in case of special requirements for heat conductivity, mechanical properties or corrosion resistance. Below are our regular materials` combination.
A. Copper aluminum composite finned tube
B. Steel aluminum composite finned tube
C. Pure aluminum finned tube
D. Pure copper finned tube

Fin Height Options:
A. Low finned tubes
The fins of the low finned tube are extruded directly from the tube material. The fin height is only 1-2 mm. The common low fins are 1.6 mm in the shell- and-tube heat exchanger. This kind of finned tube does not need to consider the contact thermal resistance with the tube.

B. Middle finned tubes
The fin height of the finned tube is about 3.2 mm, which is often used in pressure vessel equipment such as shell and tube heat exchangers.

C. High finned tubes
The finned tubes are usually used in air heat exchangers, whose height is lower than 16mm, depending on working conditions.

D. Customized specification, please reach to us for more details.

Extruded Finned Tubes Characteristic:
A. High heat transfer performance and low contact thermal resistance
B. The contact area between fins and tubes is large, and the connection is tight and firm.
C. Good corrosion resistance, stable performance for long-term use.
D. Fins have good rigidity and are not easy deform.
E. Light weight and Low cost.
F. Low air resistance
G. Easy to clean

Copper finned tube is a heat exchange element. In order to improve the heat exchange efficiency, fins are usually added on the surface of the heat exchange tube to increase the external or internal surface of the heat exchange tube), so as to achieve the purpose of improving the heat exchange efficiency. The overall finned tube has no contact thermal resistance, good heat transfer performance, high strength, thermal and mechanical vibration, and good thermal expansion performance.

Removable Plate Heat Exchanger:

The Removable plate heat exchanger is a new type of high-efficiency heat exchanger composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between the various plates, and heat is exchanged through the halves. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-vapor heat exchange. Under the same pressure loss, the heat transfer coefficient is 3-5 times higher than that of the tubular heat exchanger, the floor area is one third of that of the tubular heat exchanger, and the heat recovery rate can be as high as 90% or more.

This product is suitable for chemical, machinery, food, beverage, medicine, residential heating, hot water supply, air conditioning and other departments. Intermediate heat exchangers used in conjunction with boilers, intermediate heat exchangers in high-rise buildings, etc., soda ash industry, synthetic ammonia, alcohol fermentation, resin synthesis cooling, etc.

Detachable plate heat exchanger is a new type of energy-saving heat exchange device with high heat transfer effect, compact structure, small footprint, easy operation, convenient cleaning, disassembly and maintenance, and easy to change the heat exchange area or process combination, etc. advantage.

1. The Removable plate heat exchanger has a compact structure with a small footprint, and the heat exchange area per unit volume is 2 to 5 times that of the shell-and-tube type. Unlike the shell-and-tube type, the maintenance site for drawing out the tube bundle is not reserved, so the same For heat exchange, the plate heat exchanger covers an area of â??â??about 1/5~1/8 of the shell and tube heat exchanger.

2. It is easy to change the heat exchange area or process combination. As long as a few plates are added or reduced, the purpose of increasing or reducing the heat exchange area can be achieved; by changing the plate arrangement or replacing a few plates, the required process combination can be achieved. It is almost impossible to increase the heat transfer area of â??â??shell and tube heat exchangers to adapt to new heat exchange conditions.

Removable plate heat exchanger is a kind of heat exchanger that is widely used in heat exchangers. It is widely used in chemical, machinery, food, beverage, medicine and other occasions. Users should select and use according to actual needs and the advantages and characteristics of heat exchangers are used to choose, and well-known brand products are also very important.

Stainless Plate Heat Exchanger:

1. Structural characteristics of stainless steel plate heat exchanger

Stainless steel plate heat exchangers are mainly divided into flat plate heat exchangers and plate heat exchangers. The main advantages are reflected in the characteristics of easy disassembly, good cleaning, convenient maintenance, small size and small footprint.
There are also many people asking whether to add an insulating layer. The heat loss of the stainless steel plate heat exchanger in the air is 1%, and the insulating layer is basically unnecessary.
Second, the characteristics of stainless steel plate heat exchanger plates
The stainless steel sheet is mainly formed by one-time stamping. What are the main advantages of doing so?

1. The corrugation depth of each plate is the same to ensure that each contact point can be well connected.

2. The weight of the heat exchanger equipment can be reduced, and a higher heat transfer coefficient can be obtained under the requirement of being able to withstand pressure.

3. There is no excessive punching area on the plate, and no invisible cracks will appear.

4. The thickness of the plate can reach 0.3mm.

The plate of the stainless steel plate heat exchanger has a strong pressure bearing capacity, which can prevent the mechanical fatigue caused by the shaking caused by the vibration.

Third, the advantages and disadvantages of stainless steel plate heat exchanger

The main advantages of stainless steel plate heat exchanger are:

1. Scaling is not easy to occur, because turbulent water can effectively reduce the possibility of scaling. To prolong the working cycle, chemical cleaning methods are generally used for cleaning. It can effectively reduce human, financial and material resources. If you are not familiar with the fouling treatment method of plate heat exchangers, you can poke into this article to browse.

2. Compact structure and small size, can be used in multiple places. And the heat transfer is good, and the equipment is light in weight.

3. The speed of the fluid is uniform, and the material is heated during the period of time without overheating.

The main disadvantages of stainless steel plate heat exchangers are:

1. As mentioned above, the thickness of the sheet is thinner and the pressure bearing capacity is lower, especially the contact points formed between the corrugated sheets. With the prolongation of use time, the pressing size will exceed the installation size, which may easily lead to the formation of pressure pits at the contact point, which may lead to perforation and lead to the scrapping of the plate.

2. The space between the plates is narrower and the evaporation time used is shorter. If the hot and cold medium is exchanged between the liquid material and the corrugated plate, if the material is cut off, it will be in a coking state, and the coking material will block the cold material passage and cause damage to the sealing gasket.

Industrial equipment Brazed plate heat exchanger is a new type of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape stacked and brazed. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Compared with the conventional shell and tube heat exchanger, its heat transfer coefficient is much higher under the same flow resistance and pump power consumption, and it has a tendency to replace the shell and tube heat exchanger within the applicable range.

Applications:

Refrigeration: used as condenser and evaporator

b. HVAC: intermediate heat exchangers used in conjunction with boilers, intermediate heat exchangers in high-rise buildings, etc.

c. Chemical industry: soda ash industry, ammonia synthesis, alcohol fermentation, resin synthesis cooling, etc.

d. Metallurgical industry: heating or cooling of aluminate mother liquor, cooling of steelmaking process, etc.

e. Machinery industry: cooling of various quenching fluids, cooling of reducer lubricating oil, etc.

Design Parameters

Flow range: 1-2000 m3/h

Working pressure: vacuum-8.2MPa

Operating temperature: -195-538C

Interface size: 1"-DN300 welding, flange, thread and other connection forms

Corrosion resistance: Welding seal without rubber gasket, choice of various metal and alloy materials, super corrosion resistance, longer service life.

Application field:

Crude oil, natural gas purification and chemical products; chemical industry; pharmaceutical and specific chemicals; injection control systems;

HVAC, district heating, thermal power plants; food processing; cooling tower heat recovery

Process requirements

Pickling temperature: Raising the pickling temperature is conducive to improving the descaling effect. If the temperature is too high, it will aggravate the corrosion of the pickling solution to the heat exchanger plates. Through repeated tests, it is found that the pickling temperature should be controlled at 60.

2) Concentration of pickling solution: According to repeated tests, the pickling solution should be prepared according to the concentration of formic acid 81.0%, water 17.0%, buffer 1.2%, and surfactant 0.8%, and the cleaning effect is excellent.

3) Pickling method and time: The pickling method should be carried out by a combination of static soaking and dynamic circulation. The pickling time is static soaking for 2h first, and then dynamic circulation for 3~4h. During the pickling process, samples should be taken frequently to test the pickling concentration. When the difference between the two adjacent test concentrations is less than 0.2%, the pickling reaction can be considered to be over.

4) Passivation treatment: After pickling, most of the scale and metal oxides on the surface of the plate heat exchanger will be dissolved and fallen off, exposing new metal, which is very easy to corrode. The sheet is passivated.

The professionally designed stainless steel roller combined with the movable tightening baffle makes the on-site disassembly and assembly of the heat exchanger fast and convenient, and can effectively reduce the wear of the load on the upper guide rod,
and the roller body is not easy to induce, thus preventing the occurrence of locking. Reliable operation, high efficiency, environmental protection, space saving and convenient maintenance are the basic and harsh requirements for current
ships and marine engineering equipment. More than 30 varieties of heat exchangers ensure that the requirements for various working conditions of marine heat exchangers (central cooler/jacket water cooler/lubricating oil cooler/fuel oil cooler/air conditioner, etc.) The efficient solution ensures the normal operation of the ship's cooling system for a long time.

The optional configuration of heat exchanger accessories (interface metal flanges, marine pressure and temperature gauges, post-insertion filters, etc.) also provides a user-friendly service for shipyards and shipowners.

Features:

Advanced board pattern design, high efficiency and environmental protection.

Compact structure and small footprint.

Excellent sheet, high reliability.

Good and reliable seal with less leakage.

After-sales service system, maintenance is assured.

Application range:

Capacity range: 0.1m3/h to 3000m3/h

Operating pressure: 1.6MpaG

Operating temperature: 150

Plate Material: Stainless Steel 304, 316L, Ti, Ti-Pd, 904L, SMO254, Hastelloy, Nickel Ni

Gasket material: NBR, EPDM, HNBR, FKM (VITON-A, VITON-B, VITON-G), etc.

SEGMENT- Gas Heat Exchanger

Spiral wound finned tubes or crimped finned tubes spiral wound on the base tube, without welding, but spot welding at the end.
Material of spiral wound finned tube or crimped finned tube: the finned strip can be copper, carbon steel, stainless steel, non-ferrous metal tube and fin, or it can be root welded or completely welded.
Spiral crimped stainless steel finned tube.
Spiral tension wound finned tubes for air coolers.
Due to the high corrosion resistance of stainless steel, when the environment has certain corrosivity or cleanliness, such as climate industry, heating, drying and cooling, stainless steel crimped fin tubes can be widely used. Usually used for finned tube heat exchangers. The maximum working temperature is 180 â??.
Compared with L-shaped finned tubes, spiral wound finned tubes or crimped finned tubes provide higher air side turbulence and heat transfer due to fins curling.
Material standard of crimped fin tube: both base tube and fin can be carbon steel and stainless steel
Carbon steel: A179, A192, SA210 Gr A1/C, A106 Gr B Stainless steel: TP304/TP304L, TP316/TP316L

SEGMENT- Finned Tube evaporators

SEGMENT- Finned Tube Condenser

SEGMENT- Finned tube radiator

SEGMENT-Water- Water Plate Heat Exchanger-BIOTECH & PHARMA

SEGMENT- Positive Displacement Heat Exchanger-HVAC

We make "CUSTOM" tubes as per the customer's needs and requirements (Engg. drawing or Sample or Sketch).
Material Test Reports (MTRs) are provided with every supply.

Mill Test Reports are provided as per the customer's needs and requirements.


Material:
Stainless Steel, Brass, Aluminium, Copper, Inconel, and others.

Type: Flat end, Radius, Close end, Open End, Flare End, Pointed End, and Radiation.

Fin Polish or Satin or Nickel Plated.

Qty: 1 to X amount (as per the customer's needs and requirements).

Types of tubes: Flare, Flat, Open, Radius, Close, Radiation, Pointed

C12000 Copper Finned Heating Pipe ASTMB68 JISH3300 Copper Fin Tube 1

Copper Low Finned Tubes Used for Heat Exchangers and Chillers and Condensors and Boilers .

SEGMENT- Water-Water Plate Heat Exchanger-BIOTECH & PHARMA