CN201047709Y

CN201047709Y - Constant temperature burning biomass fuel indirect type hot-air stove

Info

Publication number: CN201047709Y
Application number: CNU2007200367406U
Authority: CN
Inventors: 马庆生
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-23
Filing date: 2007-04-23
Publication date: 2008-04-16
Anticipated expiration: 2017-04-23

Abstract

The utility model relates to a constant temperature biomass-fired fuel indirect hot-air generating device, comprising a hot-blast stove, a temperature sensor, a temperature controller, a smoke flue blower controlling circuit and a smoke flue blower, wherein the sensor is arranged on the hot-blast channel of the hot-blast stove, and the smoke flue blower is arranged in the smoke flue port of the hot-blast stove and the temperature controller and the smoke flue blower controlling circuit are arranged inside the electric control cabinet of the hot-blast stove. The output of the temperature sensor is connected with the input of the temperature controller; the output relay contact of the temperature controller is connected in series with the controlling coil of the alternating current contactor of the smoke flue blower controlling circuit; the output contact of the alternating current contactor of the smoke flue blower controlling circuit is connected with the input end of the smoke flue blower. The utility model solves the shortcoming that the existing hot-blast stove can not control the temperature of the furnace hearth, thus leading the hot-blast stove to output the hot blast of constant temperature as well as to control the temperature of the furnace hearth, therefore, the service life of the hot-blast stove is greatly prolonged.

Description

Constant temperature biomass-burning fuel indirect type hot-blast stove

Technical field

The utility model relates to a kind of constant temperature biomass-burning fuel indirect type hot air apparatus

Background technology

Existing biomass-burning fuel indirect type hot-blast stove (hereinafter to be referred as hot-blast stove), since burning abandoned biomass fuel (as rice husk, peanut shell etc.), twice laid, energy savings, operating cost is low; And simple in structure, cost is low, receives praises from customers.In order to reach the purpose of carrying the constant temperature hot blast, existing hot-blast stove adopts the method for replenishing cold wind on the pipeline of hot-blast stove outlet.Automatically control replenishes the size of cold wind air quantity.Because the hot-blast stove self-temperature is uncontrolled, temperature is up to 800 ℃ in the stove, and flue and heat exchanger tube easy burn-out, existing hot-blast stove generally have only 1-2 service life.

The utility model content

Technical problem to be solved in the utility model provides a kind of constant temperature biomass-burning indirect type hot-blast stove, and the hot blast of steady temperature can be provided, and can make the temperature in the hot-blast stove controlled again.

The novel technical scheme that adopts of this use is: constant temperature biomass-burning fuel indirect type hot-blast stove comprises hot-blast stove, temperature sensor, temperature controller, flue draught fan control circuit, flue blower fan.Temperature controller is installed on the hot air furnace hot air pipeline; Temperature controller and flue draught fan control circuit are installed in the electrical control cubicles of hot-blast stove; The output of temperature sensor is connected with the input of temperature controller; Connect with the control coil of A.C. contactor C in the flue draught fan control circuit in the output relay contact of temperature controller; A.C. contactor is by the start-stop of the open and close controlling flue blower fan of its contact in the flue draught fan control circuit.The flue blower fan is installed in the floss hole of hot-blast stove.

Good effect of the present utility model is: the colleague at the hot blast that steady temperature is provided makes the temperature in the hot-blast stove controlled, thereby has protected body of heater, has prolonged the service life of hot-blast stove.

Description of drawings

Fig. 1 is a system block diagram of the present utility model;

Fig. 2 is an installation diagram of the present utility model;

Fig. 3 is the utility model flue draught fan control circuit schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further.

Embodiment:

Constant temperature biomass-burning fuel indirect type hot-blast stove comprises hot-blast stove 1, and hot air duct 6 and flue blower fan 5 are positioned at the top of hot-blast stove 1, and the one side is equipped with electrical control cubicles, sees Fig. 2;

Temperature sensor 2 is installed on the hot air duct 6 of hot-blast stove 1, and flue blower fan 5 is installed in the floss hole of hot-blast stove 1, and temperature controller 3 and flue draught fan control circuit 4 are installed in the electrical control cubicles of hot-blast stove 1; The output of temperature sensor 2 is connected with the input of temperature controller 3, the control coil C of the A.C. contactor in the output relay electric shock WK of temperature controller 3 and the flue draught fan control circuit 4 connects, the A.C. contactor lead-out terminal of the circuit 4 of flue blower fan control links to each other with the input terminal of flue blower fan 5, sees Fig. 2 and Fig. 3.

Be installed in the real time temperature of the temperature sensor 2 monitoring heat air deliveries on hot-blast stove 1 warm-air pipe, at the electric signal that its output output is directly proportional with hot blast temperature, this electric signal is fed to the input of temperature controller 3.When the electric signal level of sensor output is higher than the setting value (as 60 ℃) of temperature controller, the output contact of temperature controller 3 disconnects, thereby cut off the power supply of A.C. contactor control coil C in the flue draught fan control circuit 4, A.C. contactor C discharges, therefore flue blower fan 5 power supplies are cut off, and the flue blower fan is out of service.Hot-blast stove 1 no flue blower fan 5 exhausting lack air in the stove, the fuel combustion temperature descends, and the output hot blast temperature descends gradually.When hot blast temperature was lower than 60 ℃, the output level of sensor 2 was higher than the level of temperature controller 3 setting values, the output contact WK closure of temperature controller 3, A.C. contactor C adhesive, flue blower fan 5 power connections and moving begin exhausting in the stove, stove internal combustion strength-enhanced, hot blast temperature rises gradually.So circulation, make the hot blast temperature controller setting value ± 30 ℃ of scopes in, both protected body of heater, protected the hot blast of relative constant temperature again.Show that through actual motion the utility model makes the life-span of air-heater bring up to present 5-8 by original 1-2, sees Fig. 1 and Fig. 3.

Claims

1. constant temperature biomass-burning fuel indirect type hot-blast stove, comprise hot-blast stove (1), flue blower fan (5) and electrical control cubicles, hot air duct and flue blower fan are positioned at the top of hot-blast stove, it is characterized in that: temperature sensor (2) is installed on the hot air duct of hot-blast stove (1), flue blower fan (5) is installed in the floss hole of hot-blast stove (1), and temperature controller (3) and flue draught fan control circuit (4) are installed in the electrical control cubicles of hot-blast stove (1); The output of temperature sensor (2) is connected with the input of temperature controller (3), the control coil C of the A.C. contactor in the output relay electric shock WK of temperature controller (3) and the flue draught fan control circuit (4) connects, and the A.C. contactor lead-out terminal of the circuit (4) of flue blower fan control links to each other with the input terminal of flue blower fan (5).