CN1033095A

CN1033095A - Steam engine

Info

Publication number: CN1033095A
Application number: CN88107775A
Authority: CN
Inventors: 托马斯·S·伯恩斯
Original assignee: Blower Engineering Inc
Current assignee: Blower Engineering Inc
Priority date: 1987-11-12
Filing date: 1988-11-09
Publication date: 1989-05-24
Also published as: EP0316132A2; EP0316132A3; PL275766A1; AU2477188A; IN168907B; ZA888322B; CN1015200B; JPH067001B2; JPH01159503A; CA1267333A; KR890008509A; AU606764B2; BR8805886A

Abstract

A kind of compact live (open) steam machine can be used for the occasion of the various quality steam of needs, adopts the burner with water cold sleeve that has burner at the one end, has hydraulic spray nozzle at its other end.When work, the water smoke adverse current is directed to the discharge gas of burner, therefore because violent eddy current and the mixing by relative wind, cause the direct boiling of water, water smoke is positioned at away from burner flame so that the situation of water knock down the flame can not occur, and equipment of the present invention can produce steam and produced simultaneously carbon monoxide content is very low.

Description

Steam engine

The present invention is a kind of live (open) steam machine, and this invention provides one not with the compact device of boiler, and it can produce multiple quality of steam to be suitable for multiple use occasion.For example, this invention is specially adapted to cure prestressing force and precast concrete, is commonly used to the such concrete product of object compact and tubing and carries out standard and cure.When curing concrete product, wish that whole concrete keeps even temperature and concrete surface to keep moistening.Concrete cures process and produces heat, makes the inside heating of concrete product, and by stack concrete block or other goods in the room, then to they spraying steams, the uniform stoving temperature of compact and their two moistening purposes of maintenance so simultaneously are maintained.Cure compact in this way, for example in 24 hours, can obtain the concrete strength that cured through 28 days.

A kind of desirable feature of live (open) steam machine is that its CO emission is lower.In order to meet the standard statutory regulation that the workman accepts carbon monoxide, work in the factory of a sealing when steam engine, for example in concrete product plant or mine, low CO emission is important.

This invents combustion chamber and the water vapo(u)rization system of using a uniqueness, and wherein cool off by the recirculated water outer tube combustion chamber, and the water that flows out from sleeve pipe is used as by stopping up the water source that the burning gases of the burner ejection of an end are vaporized from being positioned at burning.Structure of the present invention is the reverse combustion-gas flow of being defeated by in the combustion chamber of water smoke, and it is different from the existing described structure of United States Patent (USP) 4211071-watt as the 1980.7.8 application.The zone of this structure around the water smoke produces a large amount of eddy current, guarantees like this by the burning gases water smoke of directly and fully vaporizing.In existing device, watt steam engine for example, water flows through the sleeve pipe around the combustion chamber, flows out by the ring sleeve around the airtight guard shield of flame then, and water and hot gas flow through the combustion chamber in the lump like this.In fact, have been found that this following current in the flame ambient water makes flame instability and extinguishes, this causes the generation of the high-concentration carbon monoxide that can not bear in the work place of ventilation condition difference to engine, by transmitting water smoke, eliminated the fray-out of flame problem in distance burner flame place far away.The use of the cooling collar of combustion chamber does not need to re-use refractory material and does the combustion chamber veneer, and has the additional benefit for the vaporization preheating water.

Generally according to a kind of steam engine provided by the present invention, comprise the combustion chamber that water cold sleeve is housed, its promising entrance and exit that circulates by the water of sleeve pipe, and have first end and the second end.One burner places the first end of combustion chamber, and device flows to burner so that burner can produce the flame that extends to the combustion chamber the second end with compressed air and fuel.One hydraulic spray nozzle places the combustion chamber the second end away from burner flame, and described nozzle is connected with the outlet of sleeve pipe, and makes the reverse thermal current that sprays into from burner flame of water, produces steam thus and can knock down the flame.One carrier pipe is received on the second end of combustion chamber, to carry the steam of such generation.Like this, the present invention uses a kind of particular structure, and it sprays into thermal current with the water adverse current, and hydraulic spray nozzle is directly aimed at burner, and this structure should be opposite with the traditional concept of avoiding fray-out of flame away from the flame ejection with regulation water.

In fact, have been found that, can obtain quite effectively steam by water being sprayed directly on on the burning gases from burner flame.Can believe that this structure is impelled between water smoke and the hot waste gas produces eddy current, thus the water smoke that produces steam is produced direct heat exchange.Be surprised to find that the steam that produces according to the present invention can not make fray-out of flame, even when under the much higher situation of the pressure that obtains than existing device, producing steam, also be like this.This result obtains by the equipment region that water smoke is sent into away from burner flame, and water smoke does not influence the combustion process in the burner like this.Because water smoke does not influence fuel combustion in the present invention, the equipment that burner with high efficiency is housed can produce the carbon monoxide of enough low concentrations to be suitable for the use in airtight work place.

A most preferred embodiment of the present invention will be described in conjunction with the accompanying drawings below, wherein:

Fig. 1 is the fragmentary, perspective view of steam engine for clarity sake.

Fig. 2 is the vertical sectional view of combustion chamber and auxiliary.

Can know that though accompanying drawing shows that one is suitable for the structure of natural gas or propane burner, the present invention also can use fuel oil burner, as long as the air that those skilled in the art is known and done change that some are suitable for fuel-device.

Steam engine of the present invention comprises that an end has the combustion chamber 10 that a burner 11 and the other end have a hydraulic spray nozzle 12, combustion chamber 10 has a water cold sleeve 15 (Fig. 2), water cold sleeve 15 has a cover tube inlet 16 in the lower end of nearly combustion chamber 10, upper end or burner end in nearly combustion chamber 10 have sleeve pipe outlet 17, water cycles through water cold sleeve 15 with the circulation rate of being regulated by the hydraulic controller 19 that is easy to get and insert water inlet pipe 20, and the water in water cold sleeve 15 is delivered to the hydraulic spray nozzle 12 that itself also is positioned at steam output pipe road or output pipe 24 by sleeve pipe outlet 17 and pipeline 22.The size of combustion chamber 10 is advisable fuel completing combustion in 10 scopes of combustion chamber can make by the flame of burner 11.In fact, as shown in Figure 2, the required section 25 of a hot burnt gas is arranged at the bottom that is preferably in combustion chamber 10, and this hot burnt gas is in 10 top section 26 of combustion chamber around the flame, fuel by burner 11 mechanism permitted produces when at utmost burning.

Burner 11 be a fuel oil burner or preferably a burning resemble the burner of compressed fuel gas mixture of air and natural gas or propane and so on.Therefore, burner 11 has an intake line 30, and this intake line 30 has a logical compressed-air actuated large diameter air input pipe 31, is connected to a minor diameter cartridge 32 in this air input pipe 31.Pipe 31 and 32 junction 33 just in time is the upstream of Venturi tube 35, and gaseous fuel mixture flows by Venturi tube 35 and mixes fully, guarantees in the burner end 11 burnings thus and the good control of its end quantity of heat given up is provided.

The air of air supply input pipe 31 is by sucking air by filter for molten 40 and compressing with traditional method by compressor 41 other existing compression sets, pressure in the air input pipe 31 can be regulated with a suitable air pressure valve 42, and the pressure in the cartridge 32 can be by fuel valve commonly used 43 controls.By control valve 42 and 43, the pressure of fuel mixture and composition can be with desirable and change.

Use the igniting that to finish burner 11 near the controller 49 of burner 11 ends easily, controller 49 can obtain fuel mixture from feed pipe 50 and 51, pipeline 50 and 51 is drawn from main fuel pipe 32 and air input pipe 31, feed pipe 50 and 51 at the upstream end of valve 42 and 43, joins with the person in charge 31 and 32 respectively.Also has valve 53 and 54 on the feed pipe 50 and 51 so that make desirable mixing of combustion gases thing and pressure feed controller 49.

Any that the veteran can find many kinds of burners in this technical field all is suitable for the present invention to be used, because the steam that is produced by this equipment contains the waste gas from burner 11, so in fact can select to produce the burner 11 of low concentration carbon monoxide in some applications, the low CO concentration of burner 11 obtains in the time of will producing steam in the method for this equipment of use, because can not make fray-out of flame from the adverse current water smoke of nozzle 12 ejections.Equally, the foregoing description of fuel and air supply device is intuitively and can changes with employed burner types.The veteran also can find to use flow and the relative pressure of center control device with fuel, air and the current of adjustment whole system in this technical field.

During work, produce steam together from the mist mixture of hydraulic spray nozzle 12 ejection with by the hot combustion gas that the burner 11 of 10 lower ends in the combustion chamber produces.Waste gas by the water smoke inverse guiding arrival spontaneous combustion device 11 that produces from hydraulic spray nozzle 12, because violent eddy current and the mixing by relative wind, cause the direct boiling of water, the mixing of eddy current and relative wind can be adjusted by place turbulator in combustion chamber 10 and steam output pipe road 24, and the output of adjusting burner 11 and the output of hydraulic spray nozzle 12 can determine the quality of steam by steam output pipe road 24.The relative pressure of burner 11 and hydraulic spray nozzle 12 must be regulated, and makes it possible to produce steam with described method, i.e. the hot waste gas of water catalytic combustion device 11 and produce vaporization.Produce 5-20 Pascal relatively low pressure steam with the present invention, wherein water vapor is in fact very complete in the output neck 59 between 10 bottoms, combustion chamber and steam output pipe road 24.

The principle of the invention as described can be used to produce the much higher steam of pressure that produced with direct fire unit than in the past, and like this, the most preferred embodiment of above-mentioned announcement does not limit the invention scope that is limited by following claim.

Claims

1. steam engine comprises:

Have entrance and exit that circulates for water and the combustion chamber that water cold sleeve is housed that has first and second ends by sleeve pipe;

One is positioned at the burner of combustion chamber first end;

Be used for compressed air and fuel are sent to the device of burner, make burner can produce the flame that extends to the combustion chamber the second end;

One is positioned at the hydraulic spray nozzle away from the combustion chamber the second end of burner flame, and described nozzle is connected the outlet of sleeve pipe and makes the reverse thermal current that sprays into from burner flame of water, produces steam thus and can not extinguish flame; With

One be connected the combustion chamber the second end, with the conveyance conduit of the steam of carrying such generation.

2. steam engine according to claim 1 also comprises the controller that is positioned at the combustion chamber first end, control flame is provided to burner.

3. steam engine according to claim 1, it is characterized in that, be used for the device that compressed air and fuel send burner to is comprised that a compressor, that is used to compress surrounding air is connected air delivery pipe and between compressor and the burner and is connected fuel-supply pipe on the air delivery pipe.

4. steam engine according to claim 3 comprises being positioned at the combustion chamber first end, the controller of one control flame being provided and air delivery pipe and burning carrier pipe are connected to air and fuel charge pipeline on the controller to burner.

5. steam engine according to claim 4 Feature exists

Every air and fuel-supply pipe and every air and fuel charge pipeline are all

Draw together a control valve, the control valve of air and cartridge is positioned at the downstream that is connected compressed air and fuel charge pipeline separately.

6. steam engine according to claim 1, it is characterized in that, the water inlet of water cold sleeve is positioned near the combustion chamber the second end, and the water out of water cold sleeve is positioned near the combustion chamber first end, and water is by the reverse thermal current that flows in the combustion chamber of water cold sleeve like this.

7. steam engine according to claim 1 is characterized in that hydraulic spray nozzle places on the discharge pipe of combustion chamber the second end.

8. steam engine according to claim 1, it is characterized in that, it is like this that hydraulic spray nozzle places the discharge pipe of combustion chamber the second end and its form, during use, from the water smoke of hydraulic spray nozzle ejection and hot gas counter current contacting so that discharge pipe, all water is vaporized into steam.