Welcome to Murphyfinnedtubes!

  Murphy can make  U bend tube  in our factory according to customer requirements. The elbow is heat treated according to the customer’s requirements, and then hydrostatic pressure test and dye penetration test are performed as needed. U-shaped elbows are widely used in  heat exchanger  systems. Heat exchanger equipment based on stainless steel U bend tube plays an important role in the nuclear industry and petrochemical machinery manufacturing. U bend tube heat exchangers are specially designed for high temperature applications, especially steam condensing or hot oil systems. When the differential expansion makes the fixed tube-sheet heat exchanger unsuitable, and in some cases the floating head type (HPF) cannot be selected, the U bend tube heat exchanger will be selected. The surface of the finished U-shaped elbow should be free from scale and scratches after bending. Dimensional tolerance U-bend pipes are in accordance with relevant regulations of TEMA R.C.B...

 Autumn and winter are the peak of heat exchanger selection every year. Before the peak of selection, the long-term heat exchanger must be repaired and removed. The heat exchanger is a kind of compact and high-efficiency heat transfer equipment. It is a kind of excellent heating, cooling, recycling and rapid sterilization equipment. But I don’t know that due to the long-term operation of the heat exchanger, the difference in the purity of the cooling or heating side, and the difference in the material characteristics of the processing technology, the fouling of the heat exchanger has long been unavoidable, resulting in the heat transfer The thermal efficiency is reduced, thereby endangering all normal production and processing and safety factors of machinery and equipment. Therefore, the heat exchanger should be removed on time to remove stains and ensure high efficiency heat transfer and normal production. One, the choice of heat exchanger cleaning method According to the differen...

Sophisticated processing technology for stainless steel finned tubes In the production process, the laser welding  stainless steel finned tube  is mainly made of 304 stainless steel. It is mainly used for the heat exchange of two media when it is used. The 304 stainless steel finned tube has excellent technology. It is an alternative product for heat exchange and waste heat recovery in boiler, power generation, petrochemical, HVAC, refrigeration, air conditioning and other industries.   Laser welded stainless steel finned tube can effectively improve the efficiency of its heat exchanger during use, to a certain extent, effectively extend its life, reduce volume and save materials, the whole rolled finned tube has no contact thermal resistance, heat transfer Good performance, high strength, heat resistance vibration and mechanical vibration, good thermal expansion performance.   Laser welded stainless steel finned tube has the characteristics of high strength, small f...

Laser welding finned tube Laser welding spiral finned tube is processed by laser welding machine. Stainless steel laser welded spiral finned tube In traditional spiral finned tubes, high frequency welding, resistance welding and other techniques are used to attach stainless steel fins to the steel tube. Laser welding finned tube, the welding process has its shortcomings that cannot be overcome. The laser welding spiral finned tube has a fully automatic welding process, which saves labor costs; secondly, the laser welding fins are firm and strong, and the high tensile strength test is qualified; laser welding has higher efficiency advantages. Laser welding machine is the most advanced spiral finned tube laser welding equipment. Because the welding process is fully automatic and mechanical, the scientific and technological content and quality of laser welding spiral finned tubes are superior to traditional cooling tubes. Laser welding principle Laser welding is a welding method that irra...

Fixed tube plate type: fix both ends of the pipe on the fixed tube plate at both ends of the shell. The tube plate is fixed to the shell. Advantages: simple structure, low manufacturing cost, wide range of specifications, widely used in engineering. Disadvantages: shell side inconvenience cleaning, can only use chemical cleaning, maintenance is difficult, more dirty or corrosive media can not go through the shell. When the temperature difference between the shell and the heat exchanger is large,small temperature difference stress can be reduced by single or multi-wave expansion. U-tube type: the heat exchange tube is bent into a u-shape, and the two ends of the tube are fixed in the same block. On the tube plate, the bending end is not fixed. Heat exchange tube can be freely telescopic, so the shell and heat exchange tube without thermal stress. There is only one tube plate, the structure is simple, the tube bundle can be taken out from the shell, the shell side is easy to clean,...

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 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...

Spiral plate heat exchanger equipment can be broken down, mostly because of quality problems. Compared with the heat transfer surface of other heat exchangers, the heat transfer surface of this heat exchanger is quite thin, that is, 0.5mm, and the allowable high corrosion degree is 0.05mm/ year. The material of common spiral plate heat exchanger equipment usually USES alloy material (304 or 316), 304 is the low cost of austenitic stainless steel, has the ability to resist corrosion to a certain range of organic matter, but the ability to resist hydrochloric acid and sulfuric acid is weak. Spiral plate heat exchanger equipment can be broken down, but also because of its own maintenance problems. Spiral plate heat exchanger equipment is an important component of heat exchange technology in process industrial equipment. The resilient gasket that seals between the various helical fins is a vulnerable part and also an easily aged part under natural conditions. Its service life has an impo...

Spiral plate heat exchanger devices used by the plate on both sides of seal groove, of course, there will be a continuous distribution side, and, in general, actually a side is straight, the other side also is irregular corrugated side. The continuous side edge in the center will provide strong support to the gasket, but the corrugated side edge of the plate and the corrugated side edge of the gasket will also realize just biting each other, which will make the gasket more firmly fixed on the plate, not easy to slide out of the seal groove due to pressure fluctuations and other reasons. The plate used in the helical plate heat exchanger equipment, Murphy experts use new technology and make non-bonding gasket appears to be very easy to install, and the ridgelike projection on the outside of the gasket just matches the groove on the back of the other plate, so that the whole plate group can get stuck when clamping to avoid dislocation. www.murphyfinnedtubes.com Spiral plate heat e...

Spiral plate heat exchanger channel selection: for the cold and hot fluids for heat exchange, first of all, it is necessary to pay attention to the unclean and easy to scale fluid suitable to go through the tube, because the tube cleaning is more convenient; In this case, the corrosive fluid is suitable for pipe passage, after which the tube bundle and shell can be avoided from being corroded at the same time; The fluid with high pressure should go through the pipe to avoid the shell to bear the pressure. For the selection of the channel of spiral plate heat exchanger, the saturated steam should go through the shell path, because the heat transfer coefficient of steam condensation has nothing to do with the flow rate, and the condensate is easy to discharge. If the temperature difference between the two fluids is large, it is necessary to pay attention to the use of fixed tube spiral plate heat exchanger equipment, it is appropriate to make the heat transfer coefficient of the fluid t...

When it comes to spiral plate heat exchanger, there will be surface type, regenerative type, direct contact type, fluid connection indirect heat transfer mode. In other words, on its own, it's an energy saving device at different temperatures; Helical plate heat exchanger itself is an energy saving device which can realize the heat transfer between materials at different temperatures between two or more fluids. And the spiral plate heat exchanger equipment is used, that is, the heat will be transferred from the higher fluid to the lower fluid temperature, the fluid temperature to meet the requirements of the process, in order to meet the needs of the process conditions, and at the same time is one of the main equipment to improve energy efficiency. https://www.alibaba.com/product-detail/Murphy-SS304-SS316L-SMO254-C276-Titanium_62424886016.html?spm=a2700.galleryofferlist.0.0.11491aee3sTrQP Speaking of the spiral plate heat exchanger industry, murphy's team found through t...

On the spiral plate heat exchanger heat transfer plate by using heat transfer plate, stainless steel sheet with respect to its material will choose or titanium plate, in the 10000 tons of spiral plate heat exchanger dedicated hydraulic press to a compacting above, at this point, can avoid the repeated stamping, plate punching time is conducted using double oil film coating technology, to ensure the plate forming precision is high. , spiral plate heat exchanger on the plate in the production, in this thinning quantity also is must pay attention to should be controlled in a 0.1 mm, the mould for the composite mould clamping, at this point, is referring to the mold should be composed of several small mold assembly, so that can ensure uniform plate stamping molding stress at the same time, in which there is a one piece mould wear can be quickly replaced, ensure the accuracy of the mold. https://www.alibaba.com/product-detail/Murphy-SS304-SS316L-SMO254-C276-Titanium_62426844241.html?sp...

For spiral plate heat exchanger upper pieces of imported triage area has the flow guide groove design, this kind of spiral plate heat exchanger will also have closer to the role of the difference in different flow channel the flow resistance of above, on the one hand, also can make the fluid distribution in plate heat transfer area evenly, after also can avoid the uneven flow distribution and flow blind Angle in thermal efficiency brought by the decline, pitting corrosion and scaling, etc. Murphy experts designed the plates with large width on the helical plate heat exchanger equipment, and increased the pressure equalizing groove along the isopotential line, so that the resistance formed by the intersection of the streamline guide groove and the isopotential line equalizing groove was relatively small, and the grid-shaped inlet shunt zone had nearly perfect flow equalizing effect. https://szmurphy.en.alibaba.com/product/62419848726-811592052/Murphy_Stainless_steel_fin_tube_coil_h...

Murphy experts suggest that we should pay attention to the inspection and acceptance of the foundation quality before installing the equipment for replacing the spiral plate heat exchanger. Base elevation, plane position, shape and main size, and then whether the reserved hole meets the actual requirements; The position of the anchor bolt is correct, the thread is in good condition, the nut and washer are complete; Place the foundation surface of mat iron is smooth wait. According to the form of spiral plate heat exchanger, enough space must be left at both ends of the heat exchanger to meet the requirements of cleaning and maintenance. The fixed head end of the helical plate heat exchanger should pay attention to leave enough space for the helical plate heat exchanger to extract the tube bundle from the shell. https://szmurphy.en.alibaba.com/product/62416452056-811592052/Murphy_Aluminum_boiler_laser_welding_heat_exchanger_Laser_Welded_Finned_Tubes_heat_exchange_for_Solar_Water_He...

For the installation of the helical plate heat exchanger equipment location, around this must pay attention to reserve a certain inspection site; Murphy experts suggest that the spiral plate heat exchanger must be connected to the pipeline before installation to avoid sand, oil, welding slag and other debris into the spiral plate heat exchanger, causing obstruction or damage to the plate. The helical plate heat exchanger covers a small area and is light in weight. In addition to the volume of the equipment itself, there is no need to reserve additional inspection and installation space. The thickness of the plate used for heat exchange is only 0.6-0.8mm. In the shutdown, first to pay attention to close the high pressure side of the medium solenoid valve, then pay attention to close the low pressure side of the medium solenoid valve. In the exaggerated high efficiency, environmental protection, energy saving, spiral plate heat exchanger in the heat exchange of the upper hand has become...