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China plate heat exchanger manufacturers|plate and frame heat exchanger| heat exchanger plate|gasket|frame|mold

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Tianjin JinFan Mould Co.,Ltd._ plate heat exchanger

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Plate Heat Exchanger, How it works - working principle hvac industrial engineering 

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Installation of plate heat exchanger

The structure of the plate heat exchanger is composed of various components such as upper and lower guide rods, movable compression plates, fastening screws, clamping screws, front struts, fixed compression plates, and legs. All we have to do is to connect the equipment to the overall process system in a fixed form, and make sure that no short-circuits, current interruptions, trips, etc. will occur during the later operation of the equipment.

The installation step of plate heat exchanger：

1. Once all the plates are installed into the heat exchanger frame ensure the port rings, if applicable are installed in the movable head and intermediate grids.

2. Slide all plates to the rear of the heat exchanger and one at a time inspect the gasket to ensure the gasket attachments are attached properly and the gasket is set in the gasket groove. Ensure the first plate has the proper

start gasket, move it to the front and continue to inspect each plate one at a time moving it to the front of the unit until all plates have been inspected for proper sequencing and gasket attachment.

3. Make one last check that the port rings, if applicable, are installed.

Our company is China high quality plate heat exchanger Company. If you want to know more about the installation process of plate heat exchanger, please feel free to contact us.

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Plate heat exchanger internal leaking

The advantage of the plate heat exchanger is that under the same pressure loss, the heat transfer coefficient is 3-5 times higher than that of the column heat exchanger, and the area is one-third of the tube heat exchanger. However, if a leak occurs during use, this will affect the efficiency of the equipment. How should we solve this problem?

1. Make a mark on the leakage area, and then disassemble the heat exchanger one by one to check and solve, reassemble or replace the gaskets and plates. 2. In the no-pressure state, re-clamp the device according to the clamping size provided by the manufacturer. The dimensions should be uniform and the deviation of the pressing size should not be greater than ± 0.2N (mm) (N is the total number of plates). The parallelism between the plates should be kept within 2mm. 3. When reassembling the disassembled plate, clean the surface to prevent dirt from adhering to the sealing surface of the gasket. 4. Disassemble the open plate heat exchanger and repair or replace the deformed part of the plate. When spare parts are not available, the deformed parts can be temporarily removed and reassembled. We have 10 years experience in designing in this field and solve various problems for you. Industry heat exchanger plate application of Automotive industry, Food industry, Pharmaceutical industry, Process Technology, Compressor systems, etc. Our engineers can help you design and select the model and configuration that is suitable for your application. Welcome to browse our website: http://www.jinfanmoju.com/.

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Plate heat exchanger vs shell and tube

Choosing a heat exchanger, the first and main question is: what kind of heat exchanger? The progress of technology construction today allows to go for plate heat exchangers for the majority of applications, In fact, if shell and tube type was almost a forced way in the past, in case of extreme working conditions with very high pressure and temperature values, new technological and engineering processes expanded plate heat exchangers potential, making them able to cover and satisfy a greater and wider range of industrial processes.

Brazed heat exchangers and all welded plate heat exchangers today allow to employ plate heat exchangers with temperatures up to 900°C, and pressures up to 100 bars. An increased range that covers almost any kind of requirement, with just a few exceptions, as for fumes recovery in refineries, or low pressure air, due to load loss and speed flow, still forcing to employ shell and tube type.

In any other kind of cooling and heating application, today plate heat exchangers are the best choice, no doubt about it, exploiting all the many advantages offered:

– higher thermal transfer efficiency

– extreme flexibility

– compact dimensions, a crucial asset in many industrial sectors

– increasing thermal transfer capacity just adding new plates

– easy maintenance and loss check and repair

– connections fixed, even in case of retrofit with a superior capacity plate heat exchanger, connections interface remains the same

The great flexibility is indeed a very important benefit offered by plate heat exchangers, representing a crucial competitiveness force allowing greater ROI: being able to increase or decrease the thermal transfer capacity simply adding or removing plates, increasing or reducing thermal transfer surface, without any intervention on piping and maintaining connections exactly the same, allows to adjust thermal capacity to the real needs and production volumes.

Tianjin JinFan Mould Co., Ltd is a professional company devoted to design and manufacture plate type heater-exchanger moulds, owning hundreds of employees and more than forty sets of processing centers.

   NC milling and Gantry milling. We can provide three hundreds of plate type heat-exchanger moulds for our customer, JinFan mould company has nearly 20 years' experience in design and manufacture plate type heater-exchanger moulds. We also has a group of engineering technology staffs with nearly 3 decades plate type design. With few decades of experience and research on world advanced plate types, we have formed and unique design idea. Under the concept, we have exploited the bigger 500 holes mould and 400 holes mould respectively in a different times. We obtain customer appreciation owing to our reasonable price, solid quality, and comprehensive services.

Welcome to browse our website:  www.jinfanmoju.com.

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How to size a heat exchanger?

For sizing a heat exchanger, several thermal phenomena should be considered first:

1. Forced convection of both fluids: Convection is the transfer of heat between a wall and a flowing fluid, both having different temperatures. In the case of heat exchangers, it is called forced convection as it is caused by artificial circulation (pumps, turbines, fans...)

2. Conduction: This is the transfer of heat which occurs naturally through the walls, plates, and tubes. This phenomenon is based on the principle of thermal agitation without the movement of material.

3.Thermal radiation which could be considered as negligible.

THE CHOICE OF TECHNOLOGY

Selection of the optimum technology is linked to:

1. The thermal program (Required temperatures, efficiency…)

2. The nature of the fluids

3. The application

4. The constraints of installation and maintenance

THERMAL DESIGN

Once the technological choices made, we will proceed to the design of the heat exchanger, i.e. determining its power, size, and geometry.

CALCULATION OF THE HEAT EXCHANGER PRESSURE DROP

A moving fluid undergoes energy losses due to friction on the walls (regular head loss) or mishaps (singular head losses) such as baffles, for example. This loss of energy, expressed in pressure drop (△P) must be compensated to allow the fluid to move.

When the heat exchanger is designed, the heat exchanger pressure drop can be calculated with different correlations determined by the characteristics of the exchange surfaces.

Tianjin JinFan Mould Co., Ltd is a professional company devoted to design and manufacture plate type heater-exchanger moulds, owning hundreds of employees and more than forty sets of processing centers.

   NC milling and Gantry milling. We can provide three hundreds of plate type heat-exchanger moulds for our customer, JinFan mould company has nearly 20 years' experience on design and manufacture plate type heater-exchanger moulds. We also has a group of engineering technology staffs with nearly 3 decades plate type design. With few decades experience and research on world advanced plate types, we have fromed and unique design idea. Under the concept, we have expoited the bigger 500 holes mould and 400 holes mould respectively in a different times. We obtain customers appreciation owing to our resonable price, solid quality, and comprehensive services.

Welcome to browse our website: www.jinfanmoju.com.

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How to choose plate heat exchanger

Plate-and-Frame Design

Plate-and-frame heat exchangers are offered in several assemblies. The most common one is a gasketed plate-and-frame design.

In a gasketed plate-and-frame design, a synthetic rubber gasket is placed between the plates to form fluid channels. This design can be limited with regards to temperature, pressure and fluid compatibility due to the operational limitations of the gasket material. The gasketed plate-and-frame exchanger assembly offers a design that is easily cleanable, and the fouled plates are simple to replace.

Plate-and-Shell Design

In this design, a fully welded plate pack is inserted into a shell, which distributes the stress and eliminates the need for gaskets. A plate-and-shell unit often is designed and manufactured to meet a customer’s specific needs, and the type of metal used is dictated by the application. Unlike a shell-and-tube design, there is little chance of fouling in a plate-and-shell design. Instead, these units are almost always self-cleaning: When running fluids through plate-and-shell units, the higher the velocity of operation, the cleaner the plates.

Because the plate packs are smaller than the bundles, plants close off (via welding, for instance) a section of the shell. The resulting process offers higher efficiency in a smaller footprint. These plate-and-shell exchangers can be less expensive to operate than the shell-and-tube they replace due to reduced energy demands.

Welcome to browse our website www.jinfanmoju.com.

Contact us admin@jinfanmoju.cn. Our engineers can help you design and select the model and configuration that is suitable for your application.

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Design of Plate Heat Exchanger

A plate heat exchanger is a compact type of heat exchanger that uses a series of thin plates to transfer heat between two fluids. There are four main types of PHE: gasketed, brazed, welded, and semi-welded. The plate-and-frame or gasketed plate heat exchanger essentially consists of a pack of thin rectangular plates sealed around the edges by gaskets and held together in a frame (Figure 1). Plate heat exchangers were first introduced in 1923 for milk pasteurization applications, but are now used in many applications in the chemical, petroleum, HVAC, refrigeration, dairy, pharmaceutical, beverage, liquid food and health care sectors.

The simplest types of arrangements of plate heat exchangers are those in which both fluids make just one pass, so there is no change in direction of the streams. These are known as 1-1 single-pass arrangements, and there are two types: countercurrent and concurrent. A great advantage of the single-pass arrangement is that the fluid inlets and outlets can be installed in the fixed plate, making it easy to open the equipment for maintenance and cleaning, without disturbing the pipework. This is the most widely used single-pass design, known as the U-arrangement. There is also a single-pass Z-arrangement, where there is input and output of fluids through both end plates.

Welcome to browse our website www.jinfanmoju.com.

Contact us admin@jinfanmoju.cn. Our engineers can help you design and select the model and configuration that is suitable for your application.

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Plate heat exchanger

A plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat between two fluids. This has a major advantage over a conventional heat exchanger in that the fluids are exposed to a much larger surface area because the fluids are spread out over the plates. This facilitates the transfer of heat, and greatly increases the speed of the temperature change. Plate heat exchangers are now common and very small brazed versions are used in the hot-water sections of millions of combination boilers. The high heat transfer efficiency for such a small physical size has increased the domestic hot water (DHW) flowrate of combination boilers. The small plate heat exchanger has made a great impact in domestic heating and hot-water. Larger commercial versions use gaskets between the plates, whereas smaller versions tend to be brazed.

The concept behind a heat exchanger is the use of pipes or other containment vessels to heat or cool one fluid by transferring heat between it and another fluid. In most cases, the exchanger consists of a coiled pipe containing one fluid that passes through a chamber containing another fluid. The walls of the pipe are usually made of metal, or another substance with a high thermal conductivity, to facilitate the interchange, whereas the outer casing of the larger chamber is made of a plastic or coated with thermal insulation, to discourage heat from escaping from the exchanger.

The plate heat exchanger (PHE) was invented by Dr Richard Seligman in 1923 and revolutionised methods of indirect heating and cooling of fluids. Dr Richard Seligman founded APV in 1910 as the Aluminium Plant & Vessel Company Limited, a specialist fabricating firm supplying welded vessels to the brewery and vegetable oil trades.

The article was first published in https://en.wikipedia.org/wiki/Plate_heat_exchanger.

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Hundreds of heat exchanger plate models are used in different areas for customer choice, especially the wide gap heat exchanger plate. Wide gap also called free flow, flow channel gap is can be up to 12 18 to 22mm, the maximum flow gap 2 to 5 times of normal plate heat exchanger and there is little contact point or no contact point between heat exchanger plates.

Wide gap heat exchanger plate is designed for fibber or other liquid which may jam the traditional plate heat exchanger, high turbulence and the characteristics of high heat transfer, the operating cycle or cleaning interval time is longer, and cleaning easier. Widely used in the papermaking and food industry.

Any need, feel free to contact us!

admin@jinfanmoju.cn

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   Our company have two factories, one is mould factory named Tianjin Jinfan Mould Co., ltd, and the other factory named Tianjin Botai Heat-Exchanger Equipment Co., ltd, special do the plate heat exchanger unit, plate for plate heat exchanger, frame for plate heat exchanger and plate mould.

    Tianjin JinFan Mould Co.,Ltd is a professional company devoted to design and manufacture plate type heater-exchanger moulds, owning hundreds of employees and more than forty sets of processing centers.

   NC milling and Gantry milling. We can provide three hundreds of plate type heat-exchanger moulds for our customer, JinFan mould company has nearly 20 years experince on design and manufacture plate type heater-exchanger moulds. We also has a group of engineering technology staffs with nearly 3 decades plate type design. With few decades experince and research on world advanced plate type, we have fromed and unique design idea. Under the concept, we have expoited the bigger 500 holes mould and 400 holes mould respectively in different time. We obtain customers appreciation owing to our resonable price, solid quality and comprehensive services.

   Tianjin Botai Heat-Exchange Equipment Co., Ltd., the wholly-owned subsidiaries of Tianjin Jinfan Mould Co., Ltd., is the professional enterprise to manufacture plate heat exchangers, and plates and rubber gaskets for PHE. The area of the factory is 26,000㎡, and the workshop is 12,000㎡. Our company has 14 sets of press including40,000tons, 15,000 tons, 10,000 tons and 6,000 tons, and we also have over 30 sets of equipment including punch and plate shearing machine.

   We can supply various plate heat exchangers and plates over 400 models and various rubber gaskets more than 400 models. The aperture of plates is from 25 to 500mm, whose materials include SS304, SS316L, Ti, Ni, Hastelloy Alloy, 254SMO and Titanium and Palladium Alloy.