JP2010071477A - Nozzle body for mixed combustion of different type of gas and gas burner device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nozzle body for mixed combustion of different types of gases and a gas burner device, capable of injecting oxyhydrogen gas and fossil fuel gas other than the oxyhydrogen gas from different routes and performing efficient mixed combustion of these gases. <P>SOLUTION: The nozzle body 11 for mixed combustion of different types of gases is formed by integrally combining an approximately columnar oxyhydrogen gas nozzle part 12 having a plurality of small diameter blowout ports 14 in the circumferential direction on the tip face 13 and a large diameter supply port 17 provided on the peripheral lateral wall 16 side and communicated with the respective small diameter blowout ports 14 to receive supply of oxyhydrogen gas and an approximately cylindrical fossil fuel gas nozzle part 22 which is independent as an inner partition chamber 26 in a central portion in the length direction of the oxyhydrogen gas nozzle part 12 and is provided with a small diameter blow port 24 in the central position of the tip face 23 and a large diameter introduction port 25 positioned on the rear end side communicated with the small diameter blow port 24 and receiving introduction of fuel gas. The gas burner device is formed by using the nozzle body 11 for mixed combustion of different types of gases. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heterogeneous gas co-firing nozzle body and a gas burner apparatus capable of efficiently co-firing oxyhydrogen gas supplied by another route and fossil fuel gas other than the oxyhydrogen gas. .

  Recently, fuels used for industrial and consumer use have increased interest in low-cost alternative fuels to replace fossil fuels, partly due to rising crude oil prices and the promotion of energy-saving measures. The use of oxyhydrogen gas, also referred to as Brown gas, as a fuel in the flow has attracted attention.

Oxyhydrogen gas, which is considered to be an ideal clean fuel with excellent characteristics such as complete pollution-free characteristics and complete combustion characteristics, has a 2: 1 mixing ratio of hydrogen and oxygen produced by electrolyzing water. As a burner device that is a mixed gas and uses this as a fuel, for example, the one disclosed in Patent Document 1 below has already been proposed.
JP 2003-207107 A

  However, the burner device disclosed in Patent Document 1 uses only oxyhydrogen gas as fuel, and co-fired fuel with oxyhydrogen gas and fossil fuel gas such as liquefied petroleum gas other than oxyhydrogen gas It does not have the structure used as.

On the other hand, as a burner device that uses oil fuel and gas fuel as fuel for co-firing, an oil / gas mixed combustion burner device disclosed in Patent Document 2 below has already been proposed.
JP 2000-240911 A

  However, the oil / gas mixed combustion burner device disclosed in Patent Document 2 does not use oxyhydrogen gas as the gas fuel, and therefore the nozzle does not have a structure suitable for oxyhydrogen gas injection. There was an inconvenience.

  In view of the above-mentioned problems found in conventional nozzles and burner devices, the present invention is efficient by injecting oxyhydrogen gas and fossil fuel gas such as liquefied petroleum gas other than the oxyhydrogen gas from another route. It is an object of the present invention to provide a nozzle body and gas burner device for different gas co-firing that can be co-fired well.

  The present invention has been made to achieve the above object, and the first invention (nozzle for different gas co-firing) has a plurality of small-diameter jets in the circumferential direction of the tip surface, and A substantially cylindrical oxyhydrogen gas nozzle portion provided on the peripheral side thereof with a large-diameter supply port through which the oxyhydrogen gas is supplied in communication with each of these small-diameter jet ports, and the length direction of the oxyhydrogen gas nozzle portion A substantially cylindrical cylinder having a small-diameter jet port at the center position of the front end surface thereof as an internal compartment, and a large-diameter inlet through which a fossil fuel gas is introduced on the rear end side communicating with the small-diameter jet port. The most important feature is that the fossil fuel gas nozzle part is integrally combined.

  In this case, the nozzle portion for the oxyhydrogen gas communicates with the small-diameter ejection port separately from each other and has a small-diameter supply path formed in the length direction thereof, an upstream side of each of these small-diameter supply paths, and the large-diameter supply port. And an oxyhydrogen gas storage portion formed between the two.

  Further, the second invention (gas burner device), the nozzle body for different gas co-firing according to claim 1 or 2, and automatic ignition means arranged in the vicinity of the front end side of the nozzle body for different gas co-firing, Flame temperature detecting means for obtaining a control signal for controlling flashing of the automatic ignition means, and fossil fuel gas can be controlled from the large-diameter inlet side with respect to the fossil fuel gas nozzle portion in the nozzle body for different gas co-firing. Backfire between the fossil fuel gas supply means to be supplied, the blower means for sending air from the large diameter inlet side of the fossil fuel gas nozzle section, and the oxyhydrogen gas nozzle section in the nozzle body for different gas co-firing An oxyhydrogen gas supply means for controlling the oxyhydrogen gas from the large-diameter supply port through a prevention means, and each of these components is operated in a predetermined procedure after the power is turned on, and finally the flame temperature detection It operated to stop the ignition means based on the signal obtained from the stage a most important feature that is constituted by a burner control means for controlling the co-firing of different gases by the different gases mixed combustion nozzle body.

  According to the present invention, the oxyhydrogen gas and the fossil fuel gas are supplied by another route so as not to cause a pressure difference, and the supply amount of the fossil fuel gas is reduced and co-fired under the auxiliary combustion action by the oxyhydrogen gas. Since a high-temperature flame can be generated, the fuel cost can be reduced while reducing the amount of exhaust gas.

  FIG. 1 is a perspective view showing a longitudinal sectional structure of an example of the first invention of the present invention. According to the figure, the different gas co-firing nozzle body 11 has a plurality of small-diameter outlets 14 in the circumferential direction of the front end surface 13 and is supplied with oxyhydrogen gas in communication with these small-diameter outlets 14. A substantially cylindrical oxyhydrogen gas nozzle portion 12 having a large-diameter supply port 17 provided on the peripheral side surface 16 side thereof, and an internal compartment 26 at a central portion in the length direction of the oxyhydrogen gas nozzle portion 12 A substantially cylindrical fossil fuel gas provided with a small diameter injection port 24 at the center position of the front end surface 23 independently and a large diameter introduction port 25 into which a fossil fuel gas is introduced on the rear end side communicating with the small diameter injection port 24. It is formed by integrally combining with the nozzle part 22 for use.

  In other words, the oxyhydrogen gas nozzle portion 12 has a total of six small-diameter jets 14 formed at equal intervals in the circumferential direction of the tip surface 13, and each small-diameter jet 14 communicates with each other in the length direction. The small-diameter supply path 15 is formed, and an oxyhydrogen gas storage section 18 formed between the upstream side of each small-diameter supply path 15 and the large-diameter supply port 17 is formed. The oxyhydrogen gas nozzle section 12 has a female thread 19 cut into the rear end thereof, and can be screwed and connected to a male thread 34 included in a connecting member 32 described later.

  Further, the fossil fuel gas nozzle portion 22 is formed as an independent space at the central portion in the length direction of the oxyhydrogen gas nozzle portion 12 without being communicated with each small diameter supply path 15 and the oxyhydrogen gas storage portion 18. The inner compartment 26 is formed and disposed under a positional relationship in which the distal end surface 23 is slightly protruded from the distal end surface 13 of the oxyhydrogen gas nozzle portion 12. It is installed. The fossil fuel gas nozzle portion 22 has a male screw 27 indented at the rear end thereof, so that the fossil fuel gas nozzle portion 22 can be screwed and connected to a female screw 36 provided in a connecting member 32 described later.

  Further, the oxyhydrogen gas nozzle portion 12 and the fossil fuel gas nozzle portion 22 inserted and arranged through the guide through hole 20 of the oxyhydrogen gas nozzle portion 12 are integrated with each other via a connecting member 32. It is combined.

  That is, the connecting member 32 is formed with a male screw 34 on the front end side outer peripheral surface 33 and a screw hole 35 having a female screw 36 at the center, and the oxyhydrogen gas nozzle part via the male screw 34. The twelve female screws 19 and the female screw 36 can be screwed together with the male screw 27 of the fossil fuel gas nozzle portion 22. In addition, the screw hole 35 provided in the connecting member 32 is formed such that the rear end side has a larger diameter than the front end side.

  On the other hand, FIG. 2 is explanatory drawing shown with the operation condition about an example of 2nd invention, (a) is the example of whole structure of a gas burner apparatus, (b) is an automatic ignition means. (C) is the state at the start of combustion of oxyhydrogen gas, (d) is the state at the start of co-firing of oxyhydrogen gas and fossil fuel gas, (e) The state at the time of detecting the flame temperature after co-firing and turning off the automatic ignition means is shown.

  According to the figure, the gas burner device 41 includes the different gas co-firing nozzle body 11 shown in FIG. 1, the automatic ignition means 42 disposed in the vicinity of the front end side of the different gas co-firing nozzle body 11, and the automatic Flame temperature detection means 45 for obtaining a control signal for controlling the blinking of the ignition means 42, and fossil fuel gas supply means for supplying the fossil fuel gas to the fossil fuel gas nozzle section 22 from the large-diameter inlet 25 side in a controllable manner. 52, a backfire prevention means 75 is provided between the air blowing means 62 for sending air from the large-diameter inlet side of the fossil fuel gas nozzle section 22 and the oxyhydrogen gas nozzle section 12 in the different-gas mixed-fire nozzle body 11. The oxyhydrogen gas supply means 72 that intervenes and supplies the oxyhydrogen gas from the large diameter supply port 17 in a controllable manner, and these components are operated in a predetermined procedure after the power is turned on, and finally the flame temperature detection means 45 Its entirety and burner control means 82 for controlling the mixed combustion different gases by different gases mixed combustion nozzle body 11 operates to stop the auto-ignition means 42 on the basis of the obtained signal is configured. In addition, the code | symbol 47 in a figure shows the casing which covers the main-body part of the gas burner apparatus 41. FIG. A thin broken line with no arrow drawn from the burner control means 82 indicates a signal transmission / reception relationship, and a thick broken line with an arrow indicates a destination of the current signal.

  In this case, when the power is turned on, the burner control means 82 first sends a signal to the motor 63 of the blower means 62 to rotate the fan 64 such as a sickle fan as shown in FIG. The burner control means 82 sends a signal to the transformer transformer 43 with a slight delay from the start of rotation of the fan 64, and the automatic ignition means 42, for example, an ignition plug, discharges high pressure toward the front end of the different gas co-firing nozzle body 11. To do.

  The burner control means 82 discharges the automatic ignition means 42 at a high pressure and simultaneously sends a signal to the oxyhydrogen gas supply means 72 side to open the two solenoid valves 73 and 74 interposed in the supply path 76.

When the solenoid valves 73 and 74 are opened, the oxyhydrogen gas nozzle portion 12 in the different gas co-firing nozzle body 11 is supplied through a route indicated by a supply path 76 with an arrow and jets oxyhydrogen gas from the small-diameter outlet 14. as shown in is ignited by the automatic ignition means 42 FIG. 2 (c), produces a fast sharp initial flame F ₁ of combustion rate. In addition, since the backfire prevention means 75 is interposed in the supply path 76 between the oxyhydrogen gas nozzle section 12 and the electromagnetic valve 73, it is possible to reliably block the reverse flame.

In addition, an oxyhydrogen gas reservoir formed between the small diameter supply passage 15 where the oxyhydrogen gas nozzle portion 12 communicates with each small diameter outlet 14 and the upstream side of each small diameter supply passage 15 and the large diameter supply port 17. In the case where the oxyhydrogen gas storage unit 18 is supplied, the oxyhydrogen gas can be sent to each small-diameter jet outlet 14 at an equal pressure. An initial flame F ₁ can be generated.

  Next, the burner control means 82 sends a signal to the fossil fuel gas supply means 52 side, and opens the two electromagnetic valves 53 and 54 interposed in the supply path 55.

The fossil fuel gas nozzle portion 22 in the heterogeneous gas co-firing nozzle body 11 is supplied by a route indicated as a supply passage 55 with an arrow when the solenoid valves 53 and 54 are opened, and the fossil fuel gas is supplied from the small-diameter nozzle 24 to the initial flame. The main flame F _{2 which} is ejected into F ₁ and is more strongly amplified as shown in FIG. 2D is generated.

The flame temperature detecting means 45 detects the temperature when the oxyhydrogen gas and the fossil fuel gas are mixed and the main flame F ₂ reaches the complete combustion state, and the burner control means 82 as shown in FIG. The burner control means 82 sends a stop signal to the transformer transformer 43 side to turn off the automatic ignition means 42.

  Thus, as long as the oxyhydrogen gas and the fossil fuel gas are supplied to the heterogeneous gas co-firing nozzle body 11 side, the gas burner device 41 stably continues the co-firing and performs the desired heating process smoothly. Will be able to.

  In other words, according to the second invention, the oxyhydrogen gas and the fossil fuel gas supplied separately from different routes are ejected from the different gas co-firing nozzle body 11 so as not to cause a pressure difference and smoothly co-fired. Thus, the consumption of fossil fuel gas can be reduced under the assisting action of oxyhydrogen gas to generate a high-temperature flame, so that the fuel cost can be reduced while reducing the amount of exhaust gas.

  The above is the description of the present invention based on the drawings, and the specific contents thereof are not limited thereto. For example, the oxyhydrogen gas nozzle portion 12 has six small diameter outlets 14 provided on the tip surface 13 in the illustrated example, but may be other plural if desired. The fossil fuel gas used in the present invention includes coal gas, natural gas, and liquefied petroleum gas.

The perspective view which shows the longitudinal cross-sectional structure about an example of 1st invention among this invention. It is explanatory drawing which shows an example of 2nd invention with the operating condition, (a) is the example of whole structure of a gas burner apparatus, (b) is the state at the time of turning on an automatic ignition means. , (C) shows the state at the start of combustion of oxyhydrogen gas, (d) shows the state at the start of co-firing of oxyhydrogen gas and fossil fuel gas, and (e) detects the flame temperature after co-firing. Each state when the automatic ignition means is turned off is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Nozzle body for different gas mixture 12 Nozzle part for oxyhydrogen gas 13 Front end surface 14 Small-diameter jet port 15 Small-diameter supply path 16 Peripheral side surface 17 Large-diameter supply port 18 Oxyhydrogen gas storage part 19 Female screw 20 Guide through hole 22 For fossil fuel gas Nozzle portion 23 Front end surface 24 Small diameter jet port 25 Large diameter introduction port 26 Internal compartment 27 Male screw 32 Connecting member 33 Front end side outer peripheral surface 34 Male screw 35 Screw hole 36 Female screw 41 Gas burner device 42 Automatic ignition means 43 Transformer transformer 45 Flame temperature detection Means 47 Casing 52 Fossil fuel gas supply means 53, 54 Electromagnetic valve 55 Supply path 62 Blower means 63 Motor 64 Fan 72 Oxyhydrogen gas supply means 73, 74 Electromagnetic valve 75 Backfire prevention means 76 Supply path 82 Burner control means F ₁ Initial stage flame F ₂ this flame

Claims (3)

A substantially cylindrical acid having a plurality of small-diameter outlets in the circumferential direction of the front end surface, and having a large-diameter supply port connected to each of these small-diameter outlets and supplied with oxyhydrogen gas on the peripheral side surface thereof A nozzle for hydrogen gas,
A small-diameter injection port is provided at the center of the tip surface of the oxyhydrogen gas nozzle portion in the longitudinal direction as an internal compartment, and fuel gas is introduced into the rear end side communicating with the small-diameter injection port. A heterogeneous gas co-firing nozzle body, which is integrally combined with a substantially cylindrical fossil fuel gas nozzle portion having a large-diameter inlet. The oxyhydrogen gas nozzle portion communicates with the small-diameter ejection port separately from each other and has a small-diameter supply passage formed in the length direction thereof, and between the upstream side of each small-diameter supply passage and the large-diameter supply port. The nozzle body for different gas co-firing according to claim 1, further comprising a formed oxyhydrogen gas storage section. A nozzle body for different gas co-firing according to claim 1 or 2, an automatic ignition means disposed in the vicinity of the front end side of the nozzle body for different gas co-firing, and a control signal for controlling blinking of the automatic ignition means. Flame temperature detecting means, fossil fuel gas supply means for controllably supplying fossil fuel gas from the large diameter inlet side to the fossil fuel gas nozzle portion in the nozzle body for different gas co-firing, and fossil fuel gas A backfire prevention means is interposed between the blowing means for sending air from the large diameter inlet side of the nozzle portion and the oxyhydrogen gas nozzle portion in the nozzle body for different gas co-firing, and the acid is supplied from the large diameter supply port. An oxyhydrogen gas supply means for supplying hydrogen gas in a controllable manner, and each of these components is operated in a predetermined procedure after the power is turned on, and finally the ignition hand is based on a signal obtained from the flame temperature detection means. Gas burner apparatus characterized by being configured by the burner control means for controlling the co-firing of different gases operation was stopped by the different gases mixed combustion nozzle body.

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