Removable Plate Heat Exchanger

Plate heat exchanger is a kind of high efficiency heat exchanger which is composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, through which heat is exchanged. Plate heat exchanger is the ideal equipment for liquid - liquid, liquid - steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and lightweight structure, small footprint, wide application, long service life and so on. In the case of the same pressure loss, its heat transfer coefficient is 3-5 times higher than the tube heat exchanger, the floor area is one-third of the tube heat exchanger, and the heat recovery rate can be as high as 90%.

The types of plate heat exchangers are mainly frame type (detachable) and brazed type, and the plate form is mainly shaped corrugated plate, horizontal corrugated plate and nodular plate three.

Other commonly used categories include:

1 According to the amount of heat exchange area in the unit space, the plate heat exchanger is a compact heat exchanger, mainly compared with the shell and tube heat exchanger, the traditional shell and tube heat exchanger occupies a larger area.

2 According to the process use, there are different names: plate heater, plate cooler, plate condenser, plate preheater;

3 According to the process combination, it is divided into single-pass plate heat exchanger and multi-pass plate heat exchanger;

4 According to the flow direction of the two media, it is divided into downflow (parallel flow) plate heat exchanger, countercurrent plate heat exchanger, cross-flow (cross-flow) plate heat exchanger, and the latter two are more used;

5 According to the gap size of the flow path, it is divided into conventional gap plate heat exchanger and wide gap plate heat exchanger;

6 According to the ripple, plate heat exchangers have more detailed differences, no longer repeated, please refer to: plate heat exchanger plate ripple form.

7 According to whether it is a complete set of products, it can be divided into single plate heat exchanger, plate heat exchanger unit.

Design feature

1, high efficiency and energy saving: its heat transfer coefficient is 3000 ~ 4500kcal/m2·°C·h, which is 3~5 times higher than the thermal efficiency of shell and tube heat exchanger.

2, compact structure: plate heat exchanger plates are closely arranged, compared with other heat exchanger types, plate heat exchanger covers an area and occupies less space, and the plate heat exchanger with the same area is only 1/5 of the shell and tube heat exchanger.

3, easy to clean and disassemble convenient: plate heat exchanger clamping bolt clamping plate, so convenient disassembly, can be opened at any time cleaning, at the same time due to the smooth surface, high degree of turbulence, not easy to scale.

4, long service life: plate heat exchanger is pressed by stainless steel or titanium alloy plate, can resist various corrosive media, rubber pad can be replaced at will, and can be convenient in, disassembly and maintenance.

5, strong adaptability: plate heat exchanger plates are independent components, can be arbitrarily increased or decreased according to requirements, various forms; Can be applied to a variety of different process requirements.

6, do not string liquid, plate heat exchanger sealed groove set up drain liquid channel, various media will not collude, even if there is leakage, the medium is always discharged to the outside.

Application field

Plate heat exchanger has been widely used in metallurgy, mining, petroleum, chemical industry, electric power, medicine, food, chemical fiber, paper, textile, shipbuilding, heating and other departments, can be used for heating, cooling, evaporation, condensation, sterilization, waste heat recovery and other situations.

Solar energy utilization: Participate in the heat exchange process of antifreeze such as ethylene glycol in the heat transfer medium of solar panels to achieve the purpose of utilizing solar energy.

Chemical industry: Manufacture of titanium oxide, alcohol fermentation, synthesis of ammonia, resin synthesis, manufacture of rubber, cooling phosphoric acid, cooling formaldehyde water, alkali carbon industry, electrolytic alkali.

Iron and steel industry: cooling quenching oil, cooling electroplating liquid, cooling reducer lubricating oil, cooling rolling machine, wire drawing machine coolant.

Metallurgical industry: heating and cooling of aluminate mother liquor, cooling of sodium aluminate, lubricating oil cooling of aluminum smelting mill.

Machinery manufacturing industry: all kinds of quenching liquid cooling, cooling press, industrial mother machine lubricating oil, heating engine oil.

Food industry: Production of salt, sterilization and cooling of dairy products, soy sauce and vinegar, heating and cooling of animal and vegetable oils, heating and cooling of beer and wort in beer production, sugar production, gelatin concentration, sterilization and cooling, production of sodium glutamate.

Textile industry: thermal recovery of various waste liquid, cooling of boiling phosphide fiber, cooling of viscose, cooling of acetic acid and acetic anhydride, cooling of alkali solution, heating and cooling of viscose silk.

Paper industry: cooling black water, bleaching salt, lye heating, cooling, heat recovery of cellophane waste liquid, heating cooking acid, cooling sodium hydroxide aqueous solution, recovery of bleached paper waste liquid, exhaust condensation, preheating concentrated pulp like waste liquid.

Central heating: Thermal power plant waste heat district heating, heating domestic water, boiler district heating.

Oil industry: heating and cooling synthetic detergent, heating whale oil, cooling vegetable oil, cooling sodium hydroxide, cooling glycerin, emulsified oil.

Power industry: generator shaft pump cooling, transformer oil cooling.

Ship: Diesel engine, central cooler, off-jacket water cooler, piston cooler, lubricating oil cooler, preheater, seawater desalination system (including multistage and single stage).

Mariculture seedling rearing: The supporting boiler has heated the seawater for breeding seedlings to save the use of coal, so as to save energy and improve efficiency.

Others: medicine, petroleum, ceramics, glass, cement, geothermal utilization, etc.