Shell and tube heat exchanger is made to transfer energy from high fluid heat transfer to the lower temperature fluid, the fluid temperature can reach the indexes of the flow rules, so as to meet the needs of process conditions, as well as one of the main equipment of improving energy efficiency. The heat exchanger industry deals with nearly 30 kinds of industries, such as HVAC, pressure vessel, and medium water treatment equipment, which form the industrial chain.
The Shell and tube heat exchanger industry in china has achieved remarkable results in energy saving and efficiency, increasing heat transfer efficiency, reducing heat transfer area, lowering pressure drop, and improving thermal strength of a plant. Based on petroleum, chemical, electric power, metallurgy, shipbuilding, machinery, food, pharmaceutical, and other industries to stable demand growth of the heat exchanger.
Murphy plate finned tube heat exchanger has some obvious advantages in operation, especially in the field of air to air heat transfer, especially in the field of ultra-high temperature air to air heat transfer. To a certain extent, it has become the upgrading product of the tube, heat pipe and finned tube heat exchanger.
The main characteristics of Murphy plate finned tube heat exchanger: the finned tube heat exchanger can be designed with elastic structure, which can effectively solve the problem of its thermal expansion; there are rich test and actual operation data as support, through constant correction of the calculation formula, the calculation error is within 5%, and more than 95% of the equipment operation can reach the design parameters.
Tubular exchanger is the most widely used heat exchanger on chemical and alcohol production. It is mainly composed of shell, tube plate, heat exchange tube, head, baffle and so on. Required material, can be made of ordinary carbon steel, copper, or stainless steel.
During heat exchange, a fluid enters through the connecting pipe of the head, flows in the pipe, and flows out through the outlet pipe at the other end of the head. Another fluid enters by the nozzle of the shell and flows out from another nozzle on the shell. This is called the shell process.
The structure of the tube heat exchanger is simple, compact and cheap, but the outside of the tube can not be cleaned mechanically. The heat exchanger tube bundle is connected to the tube plate, which is welded to both ends of the shell respectively, and is connected to the top cover. The top cover and the shell are provided with a fluid inlet and outlet pipe.
A series of baffles perpendicular to the tube bundle are usually arranged outside the tube. At the same time, the connection between tube and tubesheet and shell is rigid, while outside the tube are two kinds of fluid with different temperature. Therefore, when the temperature difference between the tube wall and the shell wall is large, due to the thermal expansion of the two are different, a large thermal stress is generated, so that the tube twists or loosens the tube from the tube plate, or even destroys the heat exchanger.
Brazed heat exchanger is an evolution of detachable heat exchanger, the sealing material is changed from rubber pad to copper, and all the plates are combined together by copper solder. Brazed plate heat exchanger is one of the new equipment in the field of heating and cooling. Brazed heat exchanger does not have sealant pad, all the plates are made of high temperature melted and welded copper foil, the 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, brazed plate heat exchanger sizing 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, brazed heat exchanger can not be separated to clean, can not be repaired, the price is slightly higher.
52230 Usti Heat Exchanger Or Condenser Suppliers
Short on time? Let Usti Heat Exchanger Or Condenser sellers contact you.
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 exchanger more than once, the interface should be on the fixed plate and the movable compression plate. In most cases, one-way is used, and all the pipes are connected to the fixed platen. On, check the shoes to open the heat exchanger without disassembling the pipe.
Principle
A plate and frame heat exchanger as known as gasketed plate heat exchanger is a high efficiency heat exchanger that assembled from metal sheets with corrugated pattern and different kind of gaskets. Plate heat exchangers are the ideal equipment for heat exchange between liquid-liquid and liquid-vapor.In the case of the same pressure loss, the heat transfer coefficient is 3-5 times higher than that of the tube heat exchanger, but the floor space is one-third of the tube heat exchanger, and the heat recovery rate can be as high as 90% or more.
Maximum volume: 5000m3 /h;Maximum design pressure: 25bar
Maximum temperature: 200 celsius degree; Minimum difference in temperature: 0.5-1 celsius degree
Plate heat exchanger
High heat transfer coefficient
The design of the plate corrugation is aimed at the high thermal conductivity. The special flow path are formed by the plate corrugation causing strong disturbance flow at a very low flow rate, which is called turbulent flow. And the disturbance flow can be self-cleaning to prevent fouling and thus the heat transfer efficiency is high.
Plate heat exchanger
Large logarithmic temperature difference
The temperature difference at the end is small, and the plate heat exchanger is mostly a cocurrent or countercurrent type of flow. In addition,there's no bypass flow.
Plate heat exchanger
Small footprint and easy maintenance
The plate heat exchanger has a compact structure, and the heat exchange area per unit volume is 2-5 times that of the shell-and-tube type, and the floor area of the plate heat exchanger is about 1/2-1/3 of the shell - tube heat exchanger when achieving same heat exchange capacity .
Product principle
The plate and shell heat exchanger adopts a circular corrugated heat exchanger plate that welded into a heat exchanger lathed bundle and combined with the structure of the pressure vessel shell. It also has a high heat transfer efficiency,compact structure and resistant to high temperature & pressure like shell tube heat exchanger. The plate and shell heat is durable under high temperature & pressure,large temperature difference and thermal shock, which is in a leading position in the industry.
Maximum volume:2500m3/h; Maximum design pressure:100bar
Maximum temperature:450 celsius degree; Minimum difference in temperature:0.5-1celsius degree
Features
Plate Shell Heat Exchanger
Safe and reliable
Unique and durable lathed bundle structure: It can resist pressure shock and thermal shock very well; round plate and circular ring welding, stress distributes evenly; no welding between lathed bundle and shell, and it can withstand various thermal expansion (deformation ).The tubular shell structure is a strong, durable and safe pressure vessel; it can be installed in any position without being affected from outside; the solid protective shell will not leak or burst, and there is no danger of leakage to the environment.
Model Number:
Portable Air Conditioner ((WT-F26 gray)
Power Type: DC
Use: Room
Condition: New
After-sales Service Provided: None
Warranty:1 year
Type: PORTABLE
Certification:CB, ce
Cooling/Heating:Cooling Only
Application:Car, Commercial, Garage, Hotel, Household, Outdoor, RV
Power Source:Electric, usb
Remote Control: Yes
App-Controlled: Yes
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.
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.
A double pipe heat exchanger is a sort of heat exchanger which includes concentric pipes parted through a mechanical closure. The name of this heat exchanger indicates that it makes use of pipes to exchange heat among fluids. One pipe has hot fluid whilst the opposite pipe has cold fluid. These two fluids do not mix with each other as they are separated by pipes. This heat exchanger is likewise known as a jacketed u-tube, jacketed tube, hairpin, and pipe-in-pipe heat exchanger.
The double pipe heat exchanger has a small pipe this is surrounded by some other huge pipes. One fluid glide withinside the small pipe, and the opposite fluid acts through the annulus among the 2 pipes. The internal wall of the small pipe is the heat switch surface. The complete warmness switch system takes vicinity withinside the huge tube. In this way, the internal pipe works as a conductive barrier. The outside facet consists of fluid gliding thru the tube facet or inside. This heat exchanger might also additionally have one pipe or a package deal of pipes (however decrease than 30 pipes). The huge pipe has decreased by 2 hundred mm in diameter. In a few conditions, the internal pipe has vertical fins to enhance the heat switch coefficient among operating fluids.
Double pipe heat exchangers are used for small heat switch areas (e.g., 14 m2). The collection connection to elevate the heat switch place wishes greater area and greater accessories, which results in a better strain loss. In addition, it isnâ??t always viable to boom the number of fluid passages on each side. This heat exchanger isnâ??t always exceptionally appropriate for grimy drinks due to the fact the grimy liquid will clog it, and the cleansing of this exchanger could be very hard. The essential benefit of the double pipe warmness exchanger is that it has a smooth operation and easy design.
Shell and tube heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid,
also known as heat exchanger. Shell and tube heat exchangers are general-purpose equipment in chemical, petroleum, power, food and many other industrial sectors, and play an important role in production. There are many types of heat exchangers, but according to the principle and method of heat exchange between cold and hot fluids, they can be basically divided into three categories: partition type, hybrid type and regenerative type. Among the three types of heat exchangers, the partition wall heat exchanger is the most widely used.
According to the different heat exchange tube bundles, the partition heat exchanger is divided into: FPR floating coil heat exchanger, LWR threaded tube heat exchanger, and WMH eddy current heat film heat exchanger.
Advantages of shell and tube heat exchangers:
1. High heat transfer coefficient: threaded pipe is a high-efficiency heat transfer element combining internal and external threads made of red copper or stainless steel with high thermal conductivity. The threaded pipe heat exchanger made of it has little fluid resistance. , then a strong turbulent flow is formed, which greatly improves the heat release coefficient inside and outside the tube. After testing, the total heat transfer coefficient of steam-water heat exchange is 3000~6000W/m2, and the total heat transfer coefficient of water-water heat exchange is 2500~5500W/m2.
2. Compact structure: This product has a large heat transfer area per unit volume. The total heat transfer coefficient is high, so the floor space is greatly reduced, saving materials and space.
3. Not easy to scale: Due to the special concave-convex structure of the threaded pipe, multi-flow layers and rotary scouring are generated inside and outside the pipe. In addition to the thermal expansion and contraction of the pipe, impurities will not remain inside and outside the pipe wall, so it is not easy to scale. , the long-term operation effect is good.
4. Not easy to leak: The sealing circumference of this product is short, the thick thread of the threaded pipe is similar to an expansion joint, and it has its own compensation ability. The thermal stress of the heat exchanger is small, and it is not easy to leak.
5. Easy installation: This series of heat exchangers has two types: horizontal and vertical, which are easy to install in different positions.
6. Compulsory supervisory inspection, reliable quality: manufactured, inspected and accepted in strict accordance with GB150-1998 "Steel Pressure Vessel", GB151-1999 "Shell and Tube Heat Exchanger" and related standards, and accepted "Pressure Vessel Safety Technology Supervision Regulations" supervision.
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.
