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HINO-TEC Plate Heat Exchanger – Gas to Gas
explanation
HINO-TEC plate heat exchangers are designed to exchange heat between dust-free gases. They are made by joining two pressed plates together and welding them to create a completely airtight structure. They have a wide range of applications, including exhaust heat recovery from industrial furnaces, and are widely used for air preheating in deodorizing equipment, food drying, boilers, paint drying, and more.
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High temperature type It contributes to energy savings by preheating combustion air from exhaust gases at a maximum temperature of 850°C.
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Compact type For small flow rates, it can be made smaller to save space.
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With cleaning nozzle Installing a cleaning nozzle may help prevent dust blockage.
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For preventing white smoke This is a visual measure to prevent the air coming out of factory chimneys from turning into white smoke.
Design Example
Case1.When the heat radiation inlet temperature is 150 degrees (air preheater) Heat radiation inlet temperature 150℃ Heat receiving inlet temperature 30℃ Heat receiving inlet temperature 100℃ Heat receiving outlet temperature 80℃ Heat radiation side flow rate 37N㎥/min Heat receiving side flow rate 37N㎥/min exchange heat amount 40,000W Heat transfer area 14.5㎡ Reference external dimensions H:730mm×D:670mm×W:520mm Case2.When the heat radiation inlet temperature is 300 degrees (exhaust heat recovery device) Heat radiation inlet temperature 300℃ Heat receiving inlet temperature 10℃ Heat radiation outlet temperature 170℃ Heat receiving outlet temperature 180℃ Heat radiation side flow rate 100N㎥/min Heat receiving side flow rate 76N㎥/min exchange heat amount 289,000W Heat transfer area 68.0㎡ Reference external dimensions H:1060mm×D:670mm×W:1240mm Case3.When the heat radiation inlet temperature is 450 degrees (air preheater) Heat radiation inlet temperature 450℃ Heat receiving inlet temperature 20℃ Heat radiation outlet temperature 300℃ Heat receiving outlet temperature 180℃ Heat radiation side flow rate 5N㎥/min Heat receiving side flow rate 5N㎥/min exchange heat amount 18,000W Heat transfer area 3.1㎡ Reference external dimensions H:730mm×D:530mm×W:280mm And more…
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Packaged Indirect Hot Air Generator “Neppatsu” with built-in plate heat exchangers is used in paint drying booths in automobile parts factories and in drying rubber products.
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Separate type Indirect Hot Air Generator This separate type is ideal for places where packaging is not possible due to the large air volume, or for drying food.
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Square corrugated tube heat exchanger – Gas to gas
explanation
The square corrugated tube heat exchanger is designed to exchange heat between gases containing dust (gas and gas).By using a tube (corrugated) that is made by processing a straight (bare) tube into a spiral shape, the flow velocity inside the tube can be increased, resulting in improved heat exchange efficiency compared to bare tubes.
A simple comparison of corrugated tubes and bare tubes (when heat is dissipated inside the tube under the same conditions (pressure loss standard)) Tube Type In-pipe velocity
m/sPipe film coefficient
W/㎡Kheat transfer coefficient
W/㎡KPressure loss inside the pipe
PaHeat transfer area
㎡weight
kgprice
%minimum tube wall temperature
℃Corrugated 14.5 72.9 32.4 450 125 9300 100 186 Bear 20.5 43.7 24.9 450 161 13000 120 154 A simple comparison of corrugated tubes and bare tubes (when heat is dissipated inside the tube under the same conditions (pressure loss standard)) Tube Type Corrugated Bear In-pipe velocity
m/s14.5 20.5 Pipe film coefficient
kcal/㎡H℃62.8 37.7 heat transfer coefficient
kcal/㎡H℃27.9 21.5 Pressure loss inside the pipe
mmAq45 45 Heat transfer area
㎡125 161 weight
kg9300 13000 price
%100 120 minimum tube wall temperature
℃186 154 -
Dust adhesion prevention device for tubular heat exchangers
explanation
Since rectangular corrugated tube heat exchangers are designed to exchange heat between gases containing dust (gases), dust blockages inside the pipes can be a concern. In such cases, dust adhesion prevention devices are effective. A chain hanging from a shaft is inserted into the pipe and moves mechanically to prevent dust from adhering inside the pipe. These devices are mainly used in clean centers around the country.
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Photo of the factory upon completion -
Inside the furnace The tube appears to be penetrating.
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Shell and tube heat exchanger – gas to gas, gas to water
explanation
Shell and tube heat exchangers are designed to recover heat from gas to gas or gas to water. Because the shell (body) is cylindrical, it can also handle high pressures. We have a track record of designing and manufacturing in accordance with pressure vessel structural standards.
Large-sized units are increasingly being used in sewage sludge incineration facilities. -
Gas-to-steam and gas-to-water heat exchangers
explanation
Steam air heaters (SAH) that use steam to preheat air (gas) often use the bare tube type, which preheats the air in a garbage pit using superheated steam or saturated steam.
Hot water generators that can produce high-temperature water of less than 100°C by using high-temperature air (exhaust heat) include the plate fin tube type and the strong high-frequency welded fin tube type.-
Bare tube type It is used in waste incineration power plants, etc. It can preheat air using high-pressure superheated steam. It has a proven track record as a product that complies with pressure vessel construction standards.
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Plate fin tube type By using fin tubes, which have a large surface area, the unit can be made more compact.
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High frequency welded fin tube type Welded fins are used when the heat source is very hot. They are larger than plate fins but offer greater strength.
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Radiation Heat Exchanger
explanation
Also known as the radiation type or two-cylinder type. This method is suitable for recovering relatively high-temperature heat from gases containing high concentrations of dust. When CO2 and H2O components are present in the high-temperature heat-releasing gas, infrared radiation is emitted from the gas, and this radiation transfers the heat from the gas to the heat transfer surface. This means that less high-temperature gas fluid is required than usual, there is little pressure loss on the gas side, and there is no need to worry about dust clogging.
Features
Operating temperature(MAX) Heat radiation inlet temperature 1100℃ Examples of equipment used
- Industrial waste sludge treatment facility
- Sewage sludge treatment facility
- Industrial furnace waste heat recovery equipment
- waste incineration facility
- Industrial waste incineration facility



