CN2804099Y - Producer-gas auto temp controlled burner - Google Patents

Abstract

The utility model relates to an automatic temperature controlling burning device for producers, which comprises a big burner nozzle, a small burner nozzle, a strong fire gas pipe, a weak fire gas pipe, a strong fire warm-air pipe, a weak fire warm-air pipe and a temperature controller. One end of the strong fire gas pipe and one end of the weak fire gas pipe are respectively connected with the big burner nozzle and the small burner nozzle, and the other end of the strong fire gas pipe and the other end of the weak fire gas pipe are communicated with a coal gas main pipe. One end of the strong fire warm-air pipe and one end of the weak fire warm-air pipe are respectively connected with the big burner nozzle and the small burner nozzle, and the other end of the strong warm-air pipe and the other end of the weak fire warm-air pipe are communicated with a hot air main pipe. The strong fire gas pipe and the weak fire warm-air pipe are respectively provided with an electric valve. Within the setting range of temperature, the temperature controller adjusts the temperature through the adjustment of the opening degree and opening and closing of the electric valve. The utility model breaks through the tradition that the temperature of the burning device for producers can only be controlled manually. Therefore, the utility model can ensure automatic temperature control of the burning device, and can satisfy the heating process of the burning device. Compared with the previous manual temperature control, the utility model economizes energy by over 10%.

Description

The temperature automatically controlled combustion unit of producer gas

Technical field

The utility model relates to the temperature automatically controlled combustion unit of a kind of producer gas.

Background technology

Producer gas is to be vaporized chemical through air and water vapour, carries out physical-chemical reaction, and coal is generated coal gas after gasifying.Producer gas is as the heating raw of process furnace, recalls a long time ago to be extensive use of both at home and abroad.Because producer gas self body contains tar and dust, if removal tar and dust can cause its calorific value to reduce.But if do not remove, tar and dust can influence the normal use of burner, valve and other valve members of equipment again, especially high-precision instrument, and simultaneously, this also is to cause the hot dirty gas always can not be by temperature automatically controlled major reason.Very a lot of experiments have been done by the inside and outside R﹠D institution of China, all fail to capture temperature automatically controlled this road difficulty.Therefore, at present domestic so long as adopt the equipment of hot dirty gas heating, its combustion unit almost all is to adopt manual temperature control.Temperature control method comes attemperation for the secondary air flow of sending out stove by manual control coal gas, and the mode of this manual regulation can make the fluctuation of temperature very big, can't guarantee the heating process of workpiece, and requires very high to producer operative employee's operating experience.

Because the different size workpiece requires differently to heat, so temperature also constantly changes, in this case, the size of the adjusting secondary air flow that the operative employee must not stop satisfies the demand of workpiece., because manual regulation does not have standard, come complete operation by workman's experience fully, and the result of operation can not satisfy arts demand fully.Once overtemperature occurs, the operative employee has only and closes secondary air fully, stops coal gas and supplies with, and burner just can produce " blowing out " phenomenon because Yi has coal gas to supply with just cease combustion when supplying gas once more, make the furnace gas muddiness, and the quality of work is impacted.

Summary of the invention

The technical problems to be solved in the utility model is exactly that the combustion unit of the producer gas generator that acts as a fuel of existing use hot dirty gas can only adopt manual temperature control, the secondary air flow of sending out stove by manual control coal gas comes attemperation, thereby make the fluctuation of temperature very big, can't guarantee the heating process of workpiece, and to the exigent problem of producer operative employee's operating experience.

The utility model comprises greatly/little baked wheaten cake mouth, big fire gas pipe, little fire gas pipeline, big fire hot air duct, little burning hot airduct road and temperature controller; The big fire gas line all is that an end is connected with big/little baked wheaten cake mouth with little fire gas pipeline, and the other end is used for communicating with the coal gas main pipe line; Big fire hot air duct, little burning hot airduct road all are that an end is connected with big/little baked wheaten cake mouth, and the other end is used for communicating with the hot blast main pipe line; A motorized valve respectively is installed on big fire gas line and the big fire hot air duct, and temperature controller carries out temperature regulation by regulating the big or small of motorized valve open amount and opening and closing in range of set temperature.

Aforementioned temperature controller is made of thermopair, temp controlled meter and PID, and thermopair is installed in greatly/top of little baked wheaten cake mouth, temp controlled meter receives by the temperature signal of thermopair collection and send PID, and PID compares than preset value after computing, and motorized valve is controlled.

In order to prevent that the coal-tar middle oil and dust of coal gas from stopping up valve, can between being responsible for, big fire gas line and coal gas establish a Residue extraction pipeline, and this Residue extraction pipeline is installed in the bottom that coal gas is responsible for, and mainly is to allow oarse-grained dust precipitation in the producer gas.

The combustion unit that the utility model has been broken through producer gas can only carry out the tradition of manual temperature control, can guarantee the temperature automatically controlled of equipment, satisfies the heating process of equipment, can energy efficient than former manual temperature control more than 10%.With regard at present domestic be with regard to the equipment of fuel with the producer gas, the utility model can improve the class of equipment.Some under electric power, oil plant, Sweet natural gas equal energy source situation comparatively in short supply, there is the equipment that needs certain heating process to ensure, can heats with producer gas fully.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

Referring to Fig. 1, the utility model is big/and little baked wheaten cake mouth 1, big fire gas line 14, little fire gas pipeline 8, big fire hot air duct 2, little burning hot airduct road 6, Residue extraction pipeline 13 and temperature controller constitute.Big fire gas pipe 14 all is that an end is connected with big/little baked wheaten cake mouth 1 with little fire gas pipeline 8, and the other end is used for communicating with coal gas main pipe line 12; Big fire hot air duct 2, little burning hot airduct road 6 all are that an end is connected with big/little baked wheaten cake mouth 1, and the other end is used for communicating with hot blast main pipe line 5.Little fire gas pipeline 8 and little burning hot airduct road 6 use jointly, are respectively equipped with manually-operated gate 9 and 7 on two pipelines.When igniting, light a fire, guarantee safety of ignition by supplying gas of low discharge.Between soak,, can not fall too soon thereby little fire can replenish a part of heat assurance fire box temperature as Chang Minghuo when big fire is extinguished.Not enough when temperature, when big fire is lighted, little fire is an immediate burning things which may cause a fire disaster, can guarantee that big fire safety lights, and can not produce " blowing out " phenomenon.

Big fire gas line 14 and big fire hot air duct 2 use jointly, are respectively equipped with manual valve 11 and 3 and the motorized valve 10 and 4 that is subjected to temperature controller control on two pipelines.Manual valve 11 and 3 on the pipeline is mainly used in the adjusting air-fuel ratio, simultaneously can carry out manual temperature control in malfunctioning automatic temperature-controlled.Temperature controller is made of thermopair, temp controlled meter and PID, thermopair is installed in greatly/top of little baked wheaten cake mouth, temp controlled meter receives by the temperature signal of thermopair collection and send PID, PID compares than preset value after computing, carries out temperature regulation by regulating the big or small of motorized valve open amount and opening and closing.

In order to prevent that tar and dust in the coal gas from stopping up valve, the link position of little fire gas pipeline 8 and coal gas main pipe line 12 is higher than the link position of big fire gas line 14 and coal gas main pipe line 12, and promptly little fire gas pipeline 8 is installed in the top of coal gas main pipe line as far as possible when connecting with coal gas main pipe line 12.Simultaneously, the link position of little burning hot airduct road 6 and hot blast main pipe line 5 is higher than the link position of big fire hot air duct 2 and hot blast main pipe line 5.

Claims (8)

1, the temperature automatically controlled combustion unit of a kind of producer is characterized in that it comprises greatly/little baked wheaten cake mouth, big fire gas line, little fire gas pipeline, big fire hot air duct, little burning hot airduct road and temperature controller; The big fire gas pipe all is that an end is connected with big/little baked wheaten cake mouth with little fire gas pipeline, and the other end is used for communicating with the coal gas main pipe line; Big fire hot air duct, little burning hot airduct road all are that an end is connected with big/little baked wheaten cake mouth, and the other end is used for communicating with the hot blast main pipe line; A motorized valve respectively is installed on big fire gas line and the big fire hot air duct, and temperature controller carries out temperature regulation by regulating the big or small of motorized valve open amount and opening and closing in range of set temperature.

2, the temperature automatically controlled combustion unit of producer as claimed in claim 1, it is characterized in that described temperature controller is made of thermopair, temp controlled meter and PID, thermopair is installed in greatly/top of little baked wheaten cake mouth, temp controlled meter receives by the temperature signal of thermopair collection and send PID, PID compares than preset value after computing, and motorized valve is controlled.

3, the temperature automatically controlled combustion unit of producer as claimed in claim 1 is characterized in that also comprising a Residue extraction pipeline, and the one end is installed in the bottom that coal gas is responsible for.

4,, it is characterized in that also respectively being equipped with on big fire gas line and the big fire hot air duct manual valve as claim 1 or the temperature automatically controlled combustion unit of 2 or 3 described producers.

5,, it is characterized in that on little fire gas pipeline and the little burning hot airduct road manual valve being housed respectively also as claim 1 or the temperature automatically controlled combustion unit of 2 or 3 described producers.

6,, it is characterized in that little fire gas pipeline and the coal gas person in charge's link position is higher than the big fire gas line and the coal gas person in charge's link position as claim 1 or the temperature automatically controlled combustion unit of 2 or 3 described producers.

7, the temperature automatically controlled combustion unit of producer as claimed in claim 6 is characterized in that the big fire gas line communicates with the coal gas person in charge by Residue extraction pipeline.

8,, it is characterized in that little burning hot airduct road and the hot blast person in charge's link position is higher than the big fire hot air duct and the hot blast person in charge's link position as claim 1 or the temperature automatically controlled combustion unit of 2 or 3 described producers.

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