ONE:Overview:

　　The circulating hot air heating device used in the drying room, drying room, and drying tunnel on the spraying production line of automobile products, surface spraying of construction machinery, household appliances, various electronic products, etc., adopts heat source (natural gas, liquefied gas, diesel oil, or Steam, heat transfer oil, electricity, etc.) heating; the (indirect) heating heat exchanger, high temperature filter, circulating fan, and three functional units are assembled on the insulation box to form an integrated circulating air heating device (equipment ), referred to as "ternary body" hot blast furnace (LRF) in industrial design, referred to as "ternary body" hot blast furnace or "ternary body" heating device.

If the organic waste gas that volatilizes and overflows during the drying process is introduced into the high-temperature furnace with the function of waste gas incineration structure for purification, this type of hot blast stove is also called "quaternary" hot blast stove or heating device.

The "ternary body" hot air heating furnace has a modular structure, and has the advantages of energy saving, high efficiency, safety, and high circulating hot air quality. , In recent years, it has been widely used in many spraying production lines and drying equipment, and the effect is remarkable, and it is very popular among engineers and technicians and users.

TWO:Product Features:
　　The structural design of the "ternary" hot blast stove heating device is professionally standardized; the manufacturing is modularized and the quality control is standardized; the performance of the accessories is advanced and reliable; the temperature control is automated; Compared with domestic similar products, it has the following characteristics:
       1. The appearance of the device is square and flat, the quality of hot air is stable, and the performance is reliable;
       2. Adopt large heat exchange area structure, complete combustion, high thermal efficiency and energy saving;
       3. The internal heat energy converter adopts stainless steel seamless steel pipe structure, with large heat exchange area per unit volume, fast heat transfer and high efficiency;
       4. Both the combustion chamber and the heat energy converter are free to expand, the heat exchange surface is arranged reasonably, the temperature rise speed is fast, and the heat load is uniform;
       5. The burner is self-locked when fault occurs, and it is purged before starting up; the pressure relief port is installed on the structural design, and the safety performance is reliable;
       6. The temperature of the outer wall of the incubator: ≤ ambient temperature +15 ℃;
       7. The overall performance of the equipment is good, and the noise is low ≤85dB (A);
       8. The service life of the whole machine is more than ten years;

       9. The "quaternary" hot blast stove purifies the organic gas emission to meet the comprehensive emission standard of air pollution (GB16297-1996).

THREE:Basic configuration of "ternary body" hot blast stove:
       1. Wall panel of insulation box: 150mm rock wool insulation panel (galvanized corrugated sheet on the outside, galvanized sheet on the inside); equipped with circulating air inlet and outlet, inspection door, pressure relief hole, smoke outlet, and fresh air filter regulating valve; Differential pressure gauge, thermocouple probe, etc.;
        2. Burner: Black & Decker, Riyadh, Weishaupt, Maxson, Tianshi and many other brands are available for selection;
        3. Thermal energy converter: the material of the combustion cylinder is SUS321; the material of the heat exchanger is SUS304;
        4. High temperature filter: galvanized sheet frame, temperature resistant 250 ℃ filter layer, high filtration accuracy;
        5. Circulation fan: plug-in high temperature resistant, explosion-proof type; low noise, durable;
        6. Thermal efficiency of thermal energy converter: 85%-95%;
        7. After the hot air is heated by circulation, the outlet air temperature is controlled at 40℃～280℃, and the temperature is measured, controlled, and controlled by automatic program;
        8. The "ternary body" hot blast stove can be designed as top-mounted, floor-mounted and side-mounted;
        9. The combustion calorific value of natural gas: 8500kcal/Nm3; the combustion calorific value of light diesel oil: 10200kcal/kg.

FOUR:Specifications, models and installation dimensions of "ternary body" hot air heating furnace:

Serial number	Product number	Calories (10,000 Kcal/h)	Air volume m3/h	Length（L）㎜	Width（W）㎜	High（H）mm	L1	L2	h1	a*b/mm	φa/mm
1	LRF-Q-15	15	13000	4000	2300	2240	400	3200	2340	500*2000	200
2	LRF-Q-20	20	18000	4000	2300	2240	400	3200	2340	500*2000	200
3	LRF-Q-25	25	23000	4000	2300	2240	400	3200	2340	500*2000	200
4	LRF-Q-30	30	27000	4600	2600	2240	455	3690	2340	610*2300	300
5	LRF-Q-35	35	32000	4600	2600	2240	455	3690	2340	610*2300	300
6	LRF-Q-40	40	38000	4600	2600	2240	455	3690	2340	610*2300	300
7	LRF-Q-45	45	42000	4600	2600	2240	455	3690	2340	610*2300	300
8	LRF-Q-50	50	47000	4600	2600	2240	455	3690	2340	610*2300	360
9	LRF-Q-55	55	51500	4600	2600	2240	500	3690	2340	700*2300	360
10	LRF-Q-60	60	57000	4900	3000	2240	500	3900	2340	700*2700	360
11	LRF-Q-70	70	59000	4900	3000	2240	500	3900	2340	700*2700	360
12	LRF-Q-80	80	65000	6600	3400	2540	500	4650	2640	7003100	400
13	LRF-Q-90	90	81000	6600	3400	2540	550	4700	2640	800*3100	400
14	LRF-Q-100	100	89000	6600	3400	2540	600	4700	2640	900*3100	450
15	LRF-Q-110	110	98000	6600	3400	2540	650	4900	2640	1000*3100	500
16	LRF-Q-120	120	108000	6600	3400	2540	700	5050	2640	1100*3100	500