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目前显示的是 二月, 2020的博文

Efficient and economical plate and frame heat exchanger

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The plate and frame type heat exchangers are the most efficient and economical type of heat exchanger available on the market with compact space saving design. The standard material for flow plate is stainless steel, optional Titanium and other alloys are available as well. Murphy offers design, supply and installation of heat exchangers and heat exchange systems for applications such as water to water heating or cooling,milk heat recovery pasteurizer, wine and juices chilling of fluids, protection of high-value cooling and heating equipment, pressure breaker, space-limited process expansions, HVAC, heat recovery from low grade waste streams,viscous fluids or slurries, industrial fluids suitable for high heat transfer rates at low pressure drops. www.murphyfinnedtubes.com Gasketed Plate Design With the large range of plate heat exchangers Murphy has got the optimal technical solution for any possible task, with connection sizes from Ø15 – Ø500 mm covering a liquid flow of 50 l/

Brazed heat exchanger product basic introduction

Braz ed  heat exchanger does not have sealant pad, all the plates are made of  high temperature melt ed  and weld ed copper foil, plate has a unique herringbone corrugated design, can make the fluid in low flow rate   also achieve the effect of turbulence, heat transfer efficiency is high, its volume is usually small, mainly used in high temperature and high pressure, rubber pad can not adapt to the working conditions. It also has certain disadvantages, brazing heat exchanger can not be separated to clean, can not be repaired, the price is slightly higher.   Brazed plate heat exchanger is one of the new equipment in the field of heating and cooling. It has the advantages of compact structure, small footprint, high heat transfer efficiency, convenient operation and maintenance, and the ability to deal with small temperature difference. As a high efficiency and energy saving product, it has been widely used in mining, metallurgy, petroleum, chemical industry, machinery, electric p

Why we choose plate heat exchanger

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Plate   Heat Exchanger, sometimes referred to as a gasketed plate heat exchanger or GPHE, provides outstanding efficiency transferring heat from one liquid to another, often water to water, or from steam to liquid. This modular exchanger combines frames, plates and connections to form a variety of configurations. It is found in many of the same duties as shell and tube heat exchangers. The plate heat exchanger is composed of a set of corrugated metal plates with four corner holes for the passage of two liquids for heat transfer. The metal sheet is mounted in a frame having a fixed plate and a movable pressing plate on one side and clamped by a clamp bolt. A gasket is placed over the plate to seal the fluid passages and direct fluid flow alternately into the respective passages to form a heat exchange. The flow, physical properties, pressure drop and temperature difference of the fluid determine the number and size of the plates. The corrugation of the plate not only increases the de

Basic Knowledge of plate heat exchanger

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Working principle: The plate heat exchanger is composed of a set of corrugated metal plates with four corner holes for the passage of two liquids for heat transfer. The metal sheet is mounted in a frame having a fixed plate and a movable pressing plate on one side and clamped by a clamp bolt. A gasket is placed over the plate to seal the fluid passages and direct fluid flow alternately into the respective passages to form a heat exchange. The flow, physical properties, pressure drop and temperature difference of the fluid determine the number and size of the plates. The corrugation of the plate not only increases the degree of turbulence but also forms a number of support points sufficient to withstand the pressure difference between the media. The metal plate and the movable compression plate are suspended on the upper guide bar and positioned by the lower guide bar, while the rod end is fixed on the support. On the column, but if one or both of the liquids pass through the heat

The application problem of heat exchanger in the pharmaceutical industry is solved from the point of view of technology

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Heat exchangers are commonly used in petroleum, chemical, metallurgy, electric power, shipping, central heating, refrigeration and air conditioning, machinery, food, pharmaceutical and other fields. According to the relevant data, the demand structure of the pharmaceutical industry for heat exchangers accounts for about 5% of the main application fields and is increasing. In fact, there are many types of heat exchangers in our country, which can be divided into tube type, version type and other types of heat exchangers according to the shape and structure of the heat transfer surface. Among them, tube heat exchanger can be divided into shell heat exchanger, tube heat exchanger, snake heat exchanger; Plate heat exchanger can be divided into a plate heat exchanger, plate-fin heat exchanger, plate-shell heat exchanger and spiral plate heat exchanger. In addition to a variety of heat exchangers have many advantages. Take shell and tube heat exchanger as an example. It is an internal h

MURPHY FINNED TUBES & HEAT EXCHANGE DESIGN SERVICES

FINNED TUBES & HEAT EXCHANGE DESIGN SERVICES Murphy offers a wide range of customizable Finned tubes& heat exchange.  But sometimes our customer’s needs cannot be satisfied by an offering from our current catalog. This is when Murphy’s extensive experience in custom Finned tubes& heat exchange really kicks into gear! We analyze the functional, budgetary, and regulatory requirements of your Finned tubes& heat exchange project to provide you with the best possible Finned tubes& heat exchange solution…whether we’re simply modifying an existing product to meet your needs, or building an entirely new unit just for you. OEM/ODM CUSTOMER: Steel industry and metallurgy industry manufacturer Pharmaceutical industry manufacturer Marine industry manufacturer Petrochemical industry manufacturer Chemical industry manufacturer Electric power industry manufacturer OEM SERVICES- CUSTOME YOUR LOGO Original equipment manufacturer (OEM) services pair your bluepri

CUSTOMIZED FINNED COILS

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The long-term use of any item can not be separated from the care and maintenance. Murphy laser welding fin tube is no exception. So what are the specific aspects of fin tube maintenance? Generally, when water is used for circulation at the beginning of operation, there may be slight leakage. When the temperature rises to the sterilization temperature, the leakage will disappear by itself. If the leakage does not stop, the finned tube must be compressed a little more. If it is still ineffective, it is necessary to open and check the rubber gasket. It is also possible that the finned tubes are arranged in the order of numbers on the fins, which should be corrected. Regularly check whether the finned tubes are complete, whether there are deposits, coking, rust layer and other scaling adhesion, and clean them immediately. At the same time, it is also necessary to check whether the adhesion between each fin tube and the rubber washer is tight, and whether the rubber washer itself

CUSTOMIZED FINNED COILS

The long-term use of any item can not be separated from the care and maintenance. Murphy laser welding fin tube is no exception. So what are the specific aspects of fin tube maintenance? Generally, when water is used for circulation at the beginning of operation, there may be slight leakage. When the temperature rises to the sterilization temperature, the leakage will disappear by itself. If the leakage does not stop, the finned tube must be compressed a little more. If it is still ineffective, it is necessary to open and check the rubber gasket. It is also possible that the finned tubes are arranged in the order of numbers on the fins, which should be corrected. Regularly check whether the finned tubes are complete, whether there are deposits, coking, rust layer and other scaling adhesion, and clean them immediately. At the same time, it is also necessary to check whether the adhesion between each fin tube and the rubber washer is tight, and whether the rubber washer itself is in

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Application of plate heat exchanger in the steel industry and metallurgy industry

Plate heat exchanger is a kind of high efficiency, energy-saving heat exchange equipment, with high heat transfer coefficient, compact structure, less material, various forms, easy maintenance, and many other advantages, application domain gradually expanded, has been widely used in machinery, electric power, metallurgy, chemical, textile, beverage, urban heating and other industries and fields, showed a strong competitiveness. Plate heat exchangers are made of metal plates (generally 0 5 ~ 1 0mm in thickness) as heat exchange elements, and are made of stainless steel, industrial pure titanium or other materials pressed by bony plates. Generally, the plate is pressed into various groove or corrugated shapes by the mold, which can not only increase the stiffness of the plate, to prevent the deformation of the plate under pressure, but also enhance the turbulence of the fluid and increase the heat transfer area. Each of the four corners of the plate has a hole, the plate around and

Why choose laser-welded stainless steel finned tubes

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Compared with other technologies, laser-welded stainless steel finned tube can greatly save material cost and achieve high penetration rate, effectively prevent the corrosion of its gap during use, thus effectively extend the service life of its equipment to a certain extent, and reduce the thermal resistance of its heat transfer. In terms of quality control of laser-welded stainless steel finned tube, its equipment mainly adopts its CCD monitoring system in the production process, monitors the welding area in the whole process, approves the first piece, USES the metallographic analysis system, obtains the welding status, and ensures the product quality qualified before continuous production. www.murphyfinnedtubes.com Laser-welded stainless steel finned tubes are widely used in chemical engineering, power engineering, air conditioning engineering, petrochemical engineering and refrigeration engineering, such as surface air cooler, air heater, fan coil used in air conditioning engi

The difference between bimetal finned tube and single metal finned tube

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Finned tube is a common heat exchange component in our heat exchangers. In these finned tubes, the functions of finned tube in each category are different, the differences are as follows: Single metal composite finned tube is made of aluminum tube rolled as a whole, called aluminum rolled finned tube, no contact thermal resistance, high strength, heat resistance and mechanical vibration, good thermal expansion performance, and has considerable expansion heat transfer surface. This kind of fin tube heat exchanger, the effect is preferred to the series or wrap heat exchanger, is a very wide use of heat exchanger. The single metal composite finned tube can also be directly rolled by steel tube or copper tube. The difference between bimetallic finned tube and single metallic finned tube technology center home page straight  straight  double metal finned tube and single metal finned tube, the difference between finned tube is a common heat exchange component in our heat exchangers. In the

Preparation of carbon steel pipe

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The raw material of carbon steel tube is round tube blank. The round tube blank is cut and processed by cutting machine to billet with a length of about 1 meter, and then sent to the furnace by conveyor belt for heating. The billets are fed into a furnace and heated at a temperature of about 1200 degrees Celsius. The fuel is hydrogen or acetylene. The temperature control in the furnace is the key problem. Generally more common puncher is tapered roller puncher, this kind of puncher has high production efficiency, good product quality, large perforation diameter, can wear a variety of steel. After perforating, the round tube blank is successively rolled, rolled or squeezed by three high. After extrusion, take off the pipe to determine the diameter. The sizing machine rotates the cone bit into the steel blank at high speed to punch holes to form the steel pipe. The inner diameter of the steel pipe is determined by the outer diameter length of the caliper bit. After the steel pipe dia

Steam boiler characteristics

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The steam boiler is a new type of high efficiency, according to the more accurate definition should be called "closed two-pass heat system", that is, in a closed system of pumping into a vacuum, depending on the change of phase state of the fluid inside (liquid to vapor state and vapor to liquid state) to transfer heat. Steam boiler features: (1) the thermal conductivity rate of metallic and non-metallic materials itself depends on the thermal conductivity of the material, temperature gradient, orthogonal to the cross section area of the temperature gradient. Take metallic silver as an example, its value is about 415W/ m.k. after measurement, the thermal conductivity of the heat pipe is hundreds of times to thousands of times of silver, so the heat pipe is known as a superconductor. Because the heat transfer process in the heat pipe is a phase change process, and the purity of the working medium is very high, so the steam temperature in the heat pipe basically keeps a c

How to improve the heat dissipation of the heat exchanger

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Finned tube heat exchanger still belongs to shoulder-arm heat exchanger to a certain extent. The main feature of the finned tube heat exchanger is that it has an extended heat transfer surface. Therefore, in the process of heat transfer, it is not only carried out on the primary heat transfer surface, but also on the secondary heat transfer surface. The heat of the medium on the high temperature side is not only poured into the medium on the low temperature side once on the surface, but also transfers part of the heat along the fin surface height direction, that is, along the fin height direction, there is a partition poured into the heat, and then pass the heat to the medium on the low temperature side. www.murphyfinnedtubes.com Finned tube heat exchanger in the production of the material will have a certain degree of thermal resistance, in the use of the direct and heat dissipation is inversely proportional, that is to say, the higher the thermal resistance, the lower the h