JP4954969B2 - High temperature steam production equipment - Google Patents

Description

  The present invention relates to a high-temperature steam production apparatus, and more particularly to a high-temperature steam production apparatus that can instantly produce high-temperature steam from water and that is simple and easy to change the temperature of the high-temperature steam.

  High-temperature steam is used for decomposition of organic matter, carbonization of organic waste, sterilization, drying, treatment of food residues, cooking of food, etc., and is expected to be used in a wider range of fields. Conventionally, high-temperature steam is produced by heating steam generated at normal pressure (see Patent Documents 1 to 3). On the other hand, the applicant of the present application is composed of a special burner that discharges incomplete combustion gas vaporized in the burner and discharges a high-temperature complete combustion gas that has an outlet temperature of 1500 ° C. immediately after ignition, and a steam generation means. Have proposed an apparatus that can instantaneously produce high-temperature steam from water (see Patent Document 4).

JP 2007-071452 A JP 2006-092838 A JP 2004-069168 A JP 2005-180895 A

However, the conventional apparatus for producing high-temperature steam that generates water vapor and heats the water vapor is complicated because it requires a means for generating water vapor and a means for heating the water vapor. There was a problem that could not be manufactured. The invention described in Patent Document 4 does not require a means for heating water vapor, and high temperature water vapor can be produced instantaneously from water, so the above-mentioned problems do not occur. On the other hand, since the temperature of high-temperature steam varies depending on the purpose of use, the temperature of the high-temperature steam must be changed according to the purpose of use.
However, in the invention described in Patent Document 4, changing the temperature of the high temperature steam requires adjustment of the fuel amount of the burner, adjustment of the amount of water, etc., and these adjustments are difficult, and changing the temperature of the high temperature steam is complicated and difficult. Work with was necessary.

  The present invention has been made in view of the above circumstances, and does not require a means for heating water vapor, can produce high-temperature water vapor from water instantaneously, and can easily and easily change the temperature of the high-temperature water vapor. It is an issue to provide.

An invention for solving the above-mentioned problems is that an inner combustion cylinder body is provided with a plurality of gas ejection holes on the peripheral surface of a cylindrical peripheral wall and covered with a cover plate provided with gas discharge ports around the front opening side. The peripheral edge of the rear opening side is joined to the front side wall plate having a cylindrical shape and having a gas discharge port around the front opening side, and to the inner surface of the rear side wall plate of the outer combustion cylinder that is closed by the rear side wall plate. The inner combustion cylinder is installed in the outer combustion cylinder, and an appropriate amount of fluid fuel and pressurized air are supplied and ignited in the inner combustion cylinder to burn and heat the inner combustion cylinder. Compressed air is supplied to the cylinder and heated to circulate, and the backfire heat of the heated gas that circulates the gasified incomplete combustion gas injected into the outer combustion cylinder from the gas injection hole and gas discharge hole provided in the inner combustion cylinder To re-burn and repeatedly circulate, further heat the inner combustion cylinder and heat vaporize An aerobic aerobic re-burning burner using a reverse-fired heat that promotes and discharges a high-temperature complete combustion gas to the outside from the gas discharge port; A high-temperature steam generating section provided with water supply means connected to the connecting section in the same direction as the discharge direction of the complete combustion gas, a lateral direction of the high-temperature steam generation section and the complete combustion gas consists of 2 or more high-temperature steam pivot portion provided continuously to said high-temperature steam generating unit in the release direction perpendicular to the direction, in the high-temperature steam pivot portion located on the outermost end side, the discharge port is formed, the high-temperature steam the between said generator high temperature steam turning unit communicating portion is formed, the high temperature steam swirling flow guide member to the communicating portion of the turning portion is formed, detachable between the high-temperature steam turning unit that fits Ri or next Mounted with flexible fasteners Comprising Te communicating portion is formed, and the gist of the high temperature steam production apparatus, wherein a swirl flow guide member to the communicating portion of the high temperature steam swivel part on the rear side thus provided.

  According to the above-described configuration, high-temperature steam can be produced from water instantaneously with complete combustion gas, and the temperature of the high-temperature steam can be easily and easily changed by increasing or decreasing the number of high-temperature steam swirling parts around which the high-temperature steam swirls. become.

  In the above invention, the connecting portion may be configured such that a hollow portion is formed at an inner peripheral position, and water supplied from the water supply means of the high-temperature steam generating portion is circulated through the hollow portion in advance. With this configuration, overheating of the connecting portion can be prevented.

  In the above invention, the front end portion of the connecting portion may be configured to protrude into the high temperature steam generating portion. With this configuration, it is possible to prevent water injected into the high-temperature steam generation part from entering the connection part.

  The high-temperature steam production apparatus according to the present invention can instantly produce high-temperature steam from water, and does not require a means for heating water vapor, and has a simpler structure than a conventional apparatus for producing high-temperature steam by heating water vapor. And can. Furthermore, since the temperature of the high-temperature steam can be changed easily and easily, it is excellent in usability according to the intended use of the high-temperature steam.

  Hereinafter, a high-temperature steam production apparatus 100 according to the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of an aerobic aerobic reburning burner A using backfired heat, FIG. 2 is an explanatory diagram of a continuous operation state of an aerobic aerobic reburning burner A using backfired heat, and FIG. FIG. 4 is an explanatory view showing the inside of the backfired aerobic aerobic reburning burner A and the high-temperature steam generator 40 of the apparatus 100, and FIG. 4 shows the backfired aerobic aerobic reburning burner A of the high-temperature steam producing apparatus 100. FIG. 5 is an explanatory view showing the swirl flow guide members 52 and 62 of the high temperature steam producing apparatus 100. FIG.

  First, an aerothermal vaporization reburning burner A using backfire heat will be described. In addition, a patent is given and the patent number is patent No. 2838241 for the aerothermal vaporization reburning burner A using a backfired heat. As shown in FIG. 1, the outer combustion cylinder 1 includes a cylindrical peripheral wall cylinder 2, a rear side wall plate 5 projecting rearwardly into a duct connection hole 3 provided at a lower portion and connected to a blower duct 4, and a central portion. It comprises a front side wall plate 8 that is provided with a gas discharge port 6 and a gas discharge tube 7 that communicates with the gas discharge port 6 and protrudes forward.

  The cylindrical peripheral wall cylinder 9 having a smaller diameter than the peripheral wall cylinder 2 of the outer combustion cylinder 1 has a plurality of gas ejection holes 10, 10. Opening holes 11, 11... And ignition supply holes 12, 12... At the rear, and covering the front opening side of the peripheral wall tube 9 with a cover plate 14 provided with a gas discharge port 13 at the center. The covered inner combustion cylinder 15 is configured, and the rear end edge 16 of the peripheral wall cylinder 9 is tightly joined to the middle upper portion of the rear side wall plate inner wall surface 17 of the outer combustion cylinder 1.

  The inner combustion cylinder 15 has a smaller diameter than the blow duct 4 so as to communicate with the inner combustion cylinder 15 through the combustion supply holes 11, 11... Provided in the lower peripheral wall front portion of the peripheral wall cylinder 9. Are joined so that the other end of the air supply pipe 18 faces the inside of the air duct 4, and through the ignition air supply holes 12, 12... Provided in the rear part of the lower peripheral wall. The upper peripheral edge 21 of the auxiliary air supply pipe 20 having an appropriate size and a smaller diameter than the air supply pipe 18 is joined so as to communicate with the inner combustion cylinder 15, and the other end is attached so as to face the air supply pipe 18.

  As described above, the inner combustion cylinder 15 having the intake pipe 18 and the auxiliary supply pipe 20 attached thereto and joined to the rear side wall inner wall surface 17 of the outer combustion cylinder 1 is connected to the front opening of the peripheral wall cylinder 2 of the outer combustion cylinder 1. Is inserted from the rear into the peripheral wall cylinder 2 covered with the front side wall plate 8 with the gas discharge cylinder 7 facing outward, and between the cover plate 14 of the inner combustion cylinder 15 and the front side wall plate 8 of the outer combustion cylinder 1. In a state in which the outer circumferential edge of the peripheral wall cylinder 2 of the outer combustion cylinder 1 and the outer peripheral edge of the rear side wall plate 5 are intimately joined to each other with an appropriate interval t therebetween, an inner combustion cylinder 15 is provided inside the outer combustion cylinder 1. At the same time, a fuel supply pipe 22 and an ignition device S communicating with the inner combustion cylinder 15 are provided to constitute a burned-back burner A using a backfired aerobic aeration.

Next, the operation of the backfired aerobic aerobic reburning burner A will be described with reference to FIG.
The air duct 4 of the aerobic recycle burner A using backfired heat is provided with a pressurized air supply device D capable of adjusting the air pressure and the air supply amount via a blow hose 23, and the fuel supply pipe 22 is provided with a fuel supply pipe. The fuel supply device F, the supply amount of which can be adjusted via 24, and the ignition fuel supply pipe 25 of the thermostarter type ignition device S (see Japanese Patent Laid-Open No. 5-39923 by the same applicant) are connected to the ignition fuel supply hose. 26 is connected to an ignition fuel pump P whose supply pressure and supply amount can be adjusted, and a lead wire connecting terminal portion 28 of the terminal fitting 27 is connected to a power source E via a lead wire 29.

  If the pressurized air supply device D is operated and an appropriate pressure and an appropriate amount of pressurized air a (indicated by a solid line arrow in the figure) is supplied to the air duct 4, the compressed air a is supplied to the air duct 4 and the air supply pipe. 18 passes through the inside of the outer combustion cylinder 1, passes through the air supply pipe 18 and the auxiliary air supply pipe 20, passes through the fuel supply holes 11, 11... And the ignition supply holes 12, 12. 15 jets. If an appropriate amount of fluid fuel f (indicated by a dotted arrow in the figure) is supplied from the fuel supply device F through the fuel supply pipe 24 into the inner combustion cylinder 15, the fuel f is supplied to the combustion air supply pipe 18 and the auxiliary air supply pipe 20. Through the combustion air supply holes 11, 11... And the ignition air supply holes 12, 12... If the ignition device S which ensures ignition by operating the replenishment of the pressurized air a flowing in from the air supply holes 12, 12... Is ignited and burned, the incomplete combustion gas g (one point in the figure) (Indicated by a chain line arrow) is provided in the cover plate 14 and the gas ejection holes 10, 10... Provided in the peripheral wall cylinder 9 in a state where the inner combustion cylinder 15 is heated and expanded while the internal pressure is increased and vaporized. From the gas discharge hole 13 into the outer combustion cylinder 1.

  Since the rear part in the combustion cylinder 1 becomes a pressure reducing part by the pressurized air a supplied into the outer combustion cylinder 1 from the blower duct 4, the pressurized air a is along the outer periphery of the inner combustion cylinder 15. The gas flows backward, mixes with the incomplete combustion gas g ejected from the inner combustion cylinder 15 into the outer combustion cylinder 1, and repeatedly circulates in the outer combustion cylinder 1 to become a high-temperature gas. The incomplete combustion gas g ejected from the inner combustion cylinder 15 by the back-fire heat of the high-temperature gas that is heated is accelerated by heating and is recirculated as a high-temperature complete combustion gas G (indicated by a two-dot chain line arrow in the figure). It ejects outward from the discharge cylinder 7.

  The connection part 30 which consists of a cylindrical body opened at both ends is connected to the above-described back-fired heat-use aerobic re-burning burner A. That is, one end of the connecting portion 30 is attached to the flange 2a formed at the front end of the peripheral wall cylinder 2 of the reverse flame utilizing aerothermal vaporization reburning burner A using oxygen, and the other end of the connecting portion 30 is hot steam. Attached to the generator 40. Further, the front end portion of the connecting portion 30 protrudes into the high temperature steam generating portion 40. A hollow portion 32 is formed at the inner peripheral position of the connecting portion 30, and a water inlet 33 and a water outlet 34 are respectively formed on the lower side and the upper side. Water supplied from a water supply device (not shown) capable of adjusting the amount of water flows from the water inlet 33 into the hollow portion 32, and the introduced water circulates through the hollow portion 32 and flows out from the water outlet 34. The connection part 30 is cooled by circulating water, and the connection part 30 can be prevented from overheating.

  The high-temperature water vapor generating part 40 made of a cylindrical body whose ends are closed is connected to the connecting part 30 in the same direction as the discharge direction of the complete combustion gas G. A water supply port 41 is formed in the upper portion of the high-temperature steam generation unit 40, and the water supply port 41 is connected to the water outlet 34 by a water supply pipe (not shown). The water can be supplied.

The high temperature water vapor swirling unit 50 formed of a cylindrical body closed at both ends is connected to the high temperature water vapor generation unit 40 in the lateral direction of the high temperature water vapor generation unit 40 and in the direction perpendicular to the discharge direction of the complete combustion gas G.
That is, the high-temperature water vapor swirling unit 50 is attached to the high-temperature water vapor generation unit 40 through a sealing material 55 by a detachable fastener 56 such as a bolt and a nut. A plurality of communication points 42 and 51 are formed between the high-temperature steam generation part 40 and the high-temperature steam rotation part 50. A plurality of swirl flow guide members 52 are formed at the communication location 51 of the high temperature steam swirl unit 50. As shown in FIG. 5, the swirl flow guide member 52 is formed of a cylindrical body that is open at both ends along the inner periphery of the high-temperature steam swirl unit 50, and one end covers the communication portion 51.

  The high-temperature steam swirling unit 50 is continuously provided with a high-temperature steam swirl unit 60 formed of a cylindrical body whose ends are closed. In other words, the high-temperature steam turning unit 60 is attached to the high-temperature steam turning unit 50 through the sealing material 65 by a detachable fastener 66 such as a bolt and a nut. A plurality of communication locations 53 and 61 are formed between the high-temperature steam swirling portions 50 and 60, and a plurality of swirl flow guide members 62 are formed in the high-temperature steam swirling portion 60. In addition, a discharge port 63 is formed in the high-temperature steam turning unit 60.

Next, the operation of the high-temperature steam production apparatus 100 configured as described above will be described.
The complete combustion gas G released into the high-temperature steam generation unit 40 through the connecting unit 30 has extremely high wind speed and pressure, and swirls counterclockwise in the high-temperature steam generation unit 40 shown in FIG. A portion of the water supplied from 41 turns into high-temperature steam instantaneously and swirls, and the water that has not been converted to high-temperature steam passes through the high-temperature steam generation section 40 together with the high-temperature mixed steam in which the generated high-temperature steam and the complete combustion gas G are mixed. Turn. At this time, since the front end portion of the connecting portion 30 protrudes into the high temperature steam generating portion 40, it is possible to prevent swirling water from entering the connecting portion 30. Since the high-temperature water vapor swirling unit 50 is configured to be connected in the lateral direction of the high-temperature water vapor generation unit 40 and in a direction perpendicular to the discharge direction of the complete combustion gas G, the high-temperature mixed water vapor filled in the high-temperature water vapor generation unit 40 is Then, the water passes through the communication points 41 and 51 together with the swirling water and flows into the high-temperature steam swirling unit 50. The high-temperature mixed steam and water that have flowed in are guided by the swirl flow guide member 52 formed at the communication portion 51 and easily swirl in the high-temperature steam swirl unit 50, and the time during which the water and the high-temperature mixed steam come into contact with each other is increased. And a part of the water becomes high-temperature steam. Further, the high-temperature mixed steam filled in the high-temperature steam swirl 50 passes through the communication points 53 and 61 together with the water that has not become high-temperature steam and flows into the high-temperature steam swirl 60 and is formed in the communication point 61. Water that has been guided by the swirling flow guide member 62 and swirled in the high-temperature steam swirling unit 60 and did not become high-temperature steam turns into high-temperature steam as in the high-temperature steam swirling unit 50, and is discharged from the discharge port 63.

  As described above, in the high-temperature steam production apparatus 100 of the present invention, the high-temperature steam swirling units 50 and 60 are connected in the lateral direction of the high-temperature steam generating unit 40 and in the direction perpendicular to the discharge direction of the complete combustion gas G. With the structure in which the guide members 52 and 62 are formed, the water mixed with the high-temperature mixed steam and the high-temperature steam can be swirled, and the time for contact between the water and the high-temperature mixed steam can be increased. A large volume of high temperature steam can be produced from a large volume of water. On the other hand, when the high-temperature steam swirling units 50 and 60 are connected to the high-temperature steam generation unit 40 in the direction coaxial with the discharge direction of the complete high-temperature gas G, the complete combustion gas G is converted into the high-temperature steam generation unit 40 shown in FIG. As the swirl flow guide members 52 and 62 are formed, the high temperature mixed steam escapes together with the water without sufficiently swirling in the high temperature steam swirling sections 50 and 60, It is not possible to lengthen the contact time of the high temperature mixed steam. Therefore, not only the brackish water separation becomes insufficient, but a large volume of high-temperature steam cannot be produced from a large volume of water.

  When the temperature of the high temperature steam produced by the high temperature steam production apparatus 100 shown in FIGS. 3 and 4 is measured, the high temperature steam in the high temperature steam generator 40 is 800 to 1200 ° C., and the high temperature steam in the high temperature steam swirl 50 is 600-800 degreeC and the high temperature steam in the high temperature steam turning part 60 were 400-600 degreeC. As described above, the high-temperature steam production apparatus 100 according to the present invention can easily attach and detach the high-temperature steam swirling units 50 and 60, and therefore adjusts the fuel amount and water amount of the backfired heat-use aerobic revaporization burner A. In addition, the temperature of the discharged high temperature steam can be easily and easily changed by increasing or decreasing the number of the high temperature steam swirl portions. In fact, since the wood is dried using the high-temperature steam producing apparatus 100 of the present invention, the temperature suitable for drying the wood can be easily set by using the two high-temperature steam swirling units 50 and 60.

It is a longitudinal cross-sectional view of the aerothermal vaporization reburning burner A using a backfire heat of the high temperature steam production apparatus according to the present embodiment. It is explanatory drawing in the continuous operation state of the high temperature steam manufacturing apparatus which concerns on this embodiment in the backfire heat utilization aerobic thermal vaporization reburning burner A. FIG. It is explanatory drawing which shows the inside of the high temperature water vapor production | generation apparatus which concerns on this embodiment, and the inside of a backfire-heated aerobic heat vaporization reburning burner A and a high temperature steam generation part. It is explanatory drawing which shows the inside of the high temperature steam production apparatus which concerns on this embodiment in the planar view, and the inside of a high temperature steam generation part and the high temperature steam generation | occurrence | production part which used the reverse-fire-heat aerobic thermal vaporization reburning burner A. It is explanatory drawing which shows the swirl | vortex flow guide member of the high temperature steam manufacturing apparatus which concerns on this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer combustion cylinder 2 Peripheral wall cylinder 5 Back side wall board 6 Gas discharge port 7 Gas discharge cylinder 8 Front side wall board 9 Perimeter wall cylinder 10 Gas ejection hole 13 Gas discharge hole 14 Lid board 15 Inner combustion cylinder A Aerobic vaporization using reverse heat Reburning burner 30 Connecting portion 32 Hollow portion 33 Water inlet 34 Water outlet 40 High temperature steam generating portion 41 Water inlet 42, 51, 53, 61 Communication location 50, 60 High temperature steam turning portion 52, 62 Swirling flow guide member 63 Exhaust Outlet 100 High-temperature steam production equipment

Claims (3)

A plurality of gas injection holes are formed in the peripheral surface of the cylindrical peripheral wall, and the rear opening side peripheral edge of the inner combustion cylinder covered with a cover plate provided with a gas discharge port around the front opening side is formed in a cylindrical shape. The inner combustion cylinder is changed to the outer combustion cylinder by joining the front side wall plate having the gas discharge port around the opening side and the rear opening side to the inner surface of the rear side wall plate of the outer combustion cylinder closed by the rear side wall plate. Installed inside, the appropriate amount of fluid fuel and pressurized air are supplied to the inner combustion cylinder and ignited to burn and heat the inner combustion cylinder, and the pressurized air is supplied to the outer combustion cylinder from the rear to circulate and heat The gasified incomplete combustion gas ejected into the outer combustion cylinder from the gas ejection hole and the gas discharge hole provided in the inner combustion cylinder is re-combusted by the backfired heat of the circulating heating gas and repeatedly circulated. The combustion cylinder is heated to promote thermal evaporation, and the temperature is high outside the gas outlet. A reverse-fired aerobic heat-vaporizing reburning burner that discharges complete combustion gas, a connecting part connected to the back-fired aerobic heat-vaporizing reburning burner, and a coaxial direction with the discharge direction of the complete combustion gas A high-temperature steam generation section provided with water water supply means connected to the connection section, and the high-temperature steam generation section in a direction transverse to the high-temperature steam generation section and perpendicular to the discharge direction of the complete combustion gas It consists of two or more high-temperature steam rotation part provided continuously to, the said high temperature steam pivot portion located on the outermost end side, the discharge port is formed, between the high temperature steam generating unit and the high temperature steam swivel part the communicating portion is formed, the high temperature steam swirling flow guide member to the communicating portion of the turning portion is formed, communicating portion which becomes attached by removable fasteners during high temperature steam turning unit that fits Ri or next Formed on the rear side Temperature steam production apparatus characterized by comprising swirling flow guide member is provided in the communicating portion of the high temperature steam swivel part.   The high temperature steam production apparatus according to claim 1, wherein the connecting portion has a hollow portion formed at an inner peripheral position, and circulates water supplied from a water supply means of the high temperature steam generating portion in advance through the hollow portion.   The high temperature steam production apparatus according to claim 1 or 2, wherein a front end portion of the connecting portion protrudes into the high temperature steam generation portion.

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