Brazed Plate Heat Exchangers-FHC012

Design pressure: 1.0Mpa / 3.0Mpa

Test pressure: 1.5Mpa / 4.5Mpa

Design temperature: -196 ~ 200 ° C

Maximum flow: 4m3 / h

Quantity of max plates: 50

Pipe Size: 3/4 "

Channel: H

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FHC210HDQ Brazed Plate Heat Exchangers

 The following solutions can be used to solve this problem: 　　1) The pressure rise and temperature rise should be as stable as possible when operating the equipment; 　　2) A pre-tightening spring can be added to the clamping stud to effectively compensate for changes in the seal pre-tightening force and prevent leakage. 3. In addition to the quality factors of the equipment in manufacturing and assembly, it is mainly related to the abnormal impact load in the system (water hammer, air hammer) , This is a phenomenon that is not easy for ordinary operators to observe

Today, when high efficiency, environmental protection, and energy saving are exaggerated, plate heat exchangers have increasingly obvious advantages in the field of heat exchange. Therefore, we have to clean it. The thickness of the plate used for heat exchange is only 0. A certain inspection site should be reserved around the location where the plate heat exchanger is installed. After cleaning, we need to debug the product to ensure the normal use of the product.

These are mainly manifested by the increase in the pressure difference between the inlet and outlet pressure gauges and the outlet temperature of the cold medium.　　 The above content is the various items that we need to pay attention to during the debugging process after the cleaning is completed.　　 When starting up, first open the low-pressure side medium plunger valve, and slowly open the high-pressure side medium plunger valve after the medium fills the plate heat exchanger channels.

The layout of the FHC210HDQ Brazed Plate Heat Exchangers is excellent in strength, but it is not obscure from the viewpoint of heat exchange. When the fluid moves in the heat exchanger shell, there is a baffle-shell, baffle-to replace the heat pipe, the control bypass between the shell. The fluid passing through these bypasses cannot fully participate in the heat exchange. In the heat exchanger, there is no bypass, and the corrugation of the plates allows the fluid to turbulent at a small flow rate. Therefore, the heat exchanger has a high heat transfer coefficient, which is usually 3 to 5 times that of the shell and tube heat exchanger.

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Plate Heat Transfer FHC028

How to repair and clean the plate heat exchanger? Before repairing the plate heat exchanger, be sure to check, for example, before disassembly , Be sure to measure the length and size, and then make the corresponding records, because the size should be according to the reinstallation. When the thickness of the heat exchange plate is very thin and does not dissolve in water, it can be disassembled and used Plate Heat Transfer FHC028 pressured water (0..1～0. 　　

2. How to check the plate heat exchanger? The repair steps are: if the gasket is stuck on two In the groove between the plates, you need to use a screwdriver to separate them carefully at this time. It can be different according to the material of the heat exchange plate. Cleaning, then what is the correct operation of the cleaning and maintenance of the plate heat exchanger? Let’s follow the plate heat exchanger manufacturer to learn about it~　　1. Due to the special structure of the plate heat exchanger, the plate heat exchanger is very prone to fouling during use, which requires us to overhaul and repair the plate heat exchanger. It is difficult to solve it by manual cleaning. How to clean the plate heat exchanger? Manual cleaning method.

The screwdriver should be inserted from the easy-to-peel part, and then separated along its periphery.The structure of the plate heat exchanger is a lot of corrugated heat transfer plates. If debris is found in the short pipes and passages of the media inlet and outlet, it means that the filter is invalid and should be cleaned in time. Then use a brush to evenly spread the synthetic resin adhesive in the groove. Chemical solvent to clean. When replacing a new gasket, use acetone or other ketone organic solvents to clean the groove of the gasket. Check whether the heat exchanger plates are perforated, usually with a magnifying glass of 5 times, and sometimes can be checked piece by piece by light or kerosene penetration method.　　

3. There are hard deposits (oxides or carbides) on the surface of the heat exchange plate, especially in the dead corners where the medium flows. Do not damage the heat exchanger plates and gaskets.2MPa) or low-pressure steam with water for jet scouring treatment, which is difficult to flush with water The deposits can be washed with soft fiber brushes and bristle brushes; chemical cleaning method

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Heat pump Series Suppliers

The plate heat exchanger can provide users with the option of changing the processing capacity and changing the heat transfer coefficient K value or adding new functions at any time. The thermal efficiency is very high. 3. It also functions as a security alarm. And unlike the shell-and-tube type, a Heat pump Series Suppliers large space is needed to pull out the tube bundle for maintenance.. Two seals are designed on the sealing device between the plates, and a signal hole is also provided.　　

5. Due to the geometry of the flow channel and the high thermal efficiency of the two liquids, the cooling water consumption can be greatly reduced.　　 Hope that the introduction of the plate heat exchanger rubber strips can be helpful to you, follow us for more news! If you don’t understand those aspects, you can consult us and we will have professionals to answer you. Generally speaking, the heat transfer coefficient K value of the plate heat exchanger is in the range of 3000～6000W/m2.　

　6. The cooling water volume is small, which reduces the installation cost of pipes, valves and pumps. Generally, the equipment no longer needs to be insulated. It is safe and reliable to use. Once leakage occurs, it can be discharged outside the heat exchanger, which prevents the two media from mixing. Under the condition of equal heat transfer, the space occupied is only 1/2 to 1/3 of the shell and tube plate heat exchanger. Because of its compact structure and small size, the outer surface area of ​​the plate heat exchanger is also small, so the heat loss is also very small.oC.　　2. So what are the advantages of the plate heat exchanger? Let's follow the plate heat exchanger rubber strip to understand it~　　

1. Small footprint and easy maintenance: The structure of the plate heat exchanger is extremely compact. This shows that the plate heat exchanger only needs 1/2 to 1/4 of the area of ​​the shell-and-tube plate heat exchanger to achieve the same heat exchange effect. The heat loss is small. ​​Less resistance loss: Under the condition of the same heat transfer coefficient, the plate heat exchanger can control the resistance loss within 1/3 of the shell-and-tube plate heat exchanger through a reasonable selection of the flow rate

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refrigeration heat exchangers

Textile industry: cooling of viscose sericine aqueous solution, cooling of boiling nitrocellulose, etc.　　2. Let’s take a look at what are there. Sample size and roughness. Today we will understand the shutdown work of the lower plate heat exchanger, let’s understand it together~　　 1. The reason~　

　1, sampling location. Before the plate heat exchanger shuts down, the pump must be stopped and the power supply cut off; 　　 2. ​​Machinery industry: Plate heat exchangers are used in various quenching liquid cooling, reducer lubricating oil cooling, etc. The processing size and roughness of plate heat exchangers that do not meet the standard requirements will also cause performance inconsistencies. If you are interested, please refrigeration heat exchangers follow the plate heat exchanger manufacturers to take a look~　　1. Metallurgical industry: heating or cooling of aluminate mother liquor, cooling of steelmaking process, etc.　　 5. To ensure the service life of the plate heat exchanger, it is not only the correct use of the equipment, but also an important task, that is, the correct shutdown.Everyone knows a lot about the relevant knowledge of plate heat exchangers.　　

3. Plate type When the heat exchanger stops, first slowly close the heating medium inlet valve, and then close the cold medium inlet valve. The incorrect formulation of the heat treatment process will directly affect the structure and performance of the forging. Sampling at different positions along the wall thickness of the cylinder will have different performance. Power industry: high-voltage transformer oil cooling, generator bearing oil cooling, etc.　　 2. Heat treatment process. Finally, close the outlet valves of the two media; 　　 Fourth, for the higher temperature media and corrosive media, the plate heat exchanger should be stopped and vented as much as possible to avoid burns and corrosion of the equipment when the equipment is opened..

　　4.　　3. If you want to ensure the working quality of the plate heat exchanger, you need to ensure that the quality of each link is passed. If you don’t pay attention to it during production, it will cause the plate heat exchanger to have short sections. Close to the outer wall of the plate heat exchanger during heat treatment, the cooling rate is fast, and the tensile and impact properties are higher. Today we will explain some other applications of plate heat exchangers. If there is a vent valve on the pipeline, it should be opened; 　　 3.　　6. Food industry: fruit juice sterilization and cooling, animal and vegetable oil heating and cooling, etc. Paper industry: heat recovery in bleaching process, heating of washing liquid, etc

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fine copper heat exchanger

Misunderstanding 3: No welding seam or smooth inner wall is not afraid of corrosion? 　　No welding seam or smooth inner wall does not mean that there is no corrosion. I hope our introduction can be helpful to you.. In recent years, due to the continuous improvement of the heat exchanger manufacturing process, the industry requirements have become higher and higher. This kind of coating mainly achieves anti-corrosion by isolating and preventing water from directly contacting the substrate.　　

The coating and the substrate are chemically bonded at high temperature, with strong adhesion and not easy to peel off. Therefore, many heat exchangers with internal coating on the market fine copper heat exchanger have large areas of blistering after being soaked in hot water for about 5 days, the coating begins to peel off, and the substrate rusts. And anti-corrosion is the highlight of the heat exchanger market this year. However, the coating and the body are glued together (physical bonding), which requires high surface treatment of the substrate, otherwise the coating is likely to peel off, which is a defect of organic coatings. For example, if there is silt, excessive sulfur content in the system, or the copper surface is selected with carbon Etc.

Consumers should be cautious when choosing anti-corrosion heat exchangers. In addition, experts remind consumers: Because aluminum alloy heat exchangers have different water quality requirements from steel, avoid mixing aluminum alloy heat exchangers with other materials. The above is the introduction of our plate heat exchanger manufacturer's customer service about the five major mistakes in the purchase of spiral plate heat exchangers.

Generally speaking, copper has better corrosion resistance than steel, but under certain circumstances, copper heat exchangers will also corrode. When the heating is stopped, they must be filled with water and sealed to prevent air from entering; while aluminum ones are afraid of alkaline water corrosion.　　 Misunderstanding 1: Is the wall thickness afraid of corrosion? 　　 Cast iron heat exchangers are not easily damaged by corrosion because the cast iron itself has good oxidation and corrosion resistance, not because of the wall thickness. will cause corrosion of the copper heat exchanger

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