CN215660940U - Low-pressure superheated steam applied to aerated concrete steam curing device - Google Patents

Abstract

A low-pressure superheated steam applied to aerated concrete steam curing device comprises a still kettle shell, a base and a superheated steam generating device, wherein the still kettle shell is arranged on the base, and a sealing door is arranged on the still kettle shell; a temperature measuring meter, a humidity measuring meter, a vacuum pump pipe seat and a pressure release valve are arranged on the shell of the still kettle, and the vacuum pump pipe seat is connected with a vacuum pump; a manual condensate discharge pipe and an automatic condensate discharge pipe are arranged at the bottom of the still kettle shell; the inner lower part of the still kettle shell is provided with a track for guiding and conveying aerated concrete, two inner sides of the still kettle shell are respectively provided with a steam distribution manifold, the steam distribution manifold is connected with a steam distribution arc pipe through a steam inlet manifold, the steam distribution arc pipe is connected with a steam transmission pipe through a steam inlet main pipe, and the steam transmission pipe is connected with an overheated steam outlet pipe of an overheated steam generating device. The device can provide superheated steam with the steam pressure not more than 0.5Mpa and the temperature more than 220 ℃ for steam curing, thereby reducing the potential safety hazard of production and lowering the manufacturing cost of equipment.

Description

Low-pressure superheated steam applied to aerated concrete steam curing device

Technical Field

The utility model relates to the technical field of aerated concrete production, in particular to a device for applying low-pressure superheated steam to aerated concrete steam curing.

Background

With the increasing popularization of novel wall materials in China, the application of autoclaved aerated concrete blocks in urban building wall materials in China is very common, the production technology level of the autoclaved aerated concrete blocks is also greatly improved, and the product performance and the technical and economic indexes are continuously optimized. As a load-bearing and non-load-bearing structural material and a heat-insulating enclosure material, the composite material has the advantages of light weight, good heat-insulating and sound-insulating effects, good fire resistance, slow water absorption, good durability, capability of being sawed and planed, certain mechanical strength, certain machinability and the like. Compared with the traditional clay brick, the autoclaved aerated concrete block can save land resources and improve the energy-saving effect of buildings.

The aerated concrete is a light porous silicate product prepared by taking siliceous materials and calcareous materials as main raw materials, adding a gas former, and carrying out the processes of batching, stirring, pouring, precuring, cutting, autoclaving, curing and the like. At present, most of aerated concrete is autoclaved by adopting saturated steam with the temperature of more than 200 ℃, the water content is less than 4 percent, the steam pressure is high, the energy consumption is high in most of the autoclaved processes of the aerated concrete, and as the adopted saturated steam pressure is not lower than 1.2Mpa, great potential safety hazards exist in the production process, and the manufacturing cost of the autoclaved equipment is high.

Disclosure of Invention

The utility model aims to provide a low-pressure superheated steam applied to an aerated concrete steam-curing device; the method can improve superheated steam with the steam pressure not more than 0.5Mpa and the temperature more than 220 ℃ to steam aerated concrete, and adopts the steam pressure 3 to 4 times lower than the saturated steam pressure required by the current steam-curing system of aerated concrete, thereby greatly reducing the potential safety hazard in the production process and also reducing the manufacturing cost of equipment.

In order to realize the purpose of the utility model, the technical scheme is as follows:

a low-pressure superheated steam is applied to an aerated concrete steam curing device and comprises a still kettle shell, a base and a superheated steam generating device, wherein the still kettle shell is arranged on the base, and a sealing door is arranged on the still kettle shell; the still kettle shell is provided with a temperature measuring meter, a humidity measuring meter, a vacuum pump pipe seat and a pressure release valve, and the vacuum pump pipe seat is connected with a vacuum pump for vacuumizing the still kettle shell; the bottom of the shell of the still kettle is provided with a manual condensate discharge pipe and an automatic condensate discharge pipe, and the technological requirements of steam curing can be met only by arranging the manual condensate discharge pipe and the automatic condensate discharge pipe at the same time; the track that is used for leading the aerated concrete is installed to the interior lower part of evaporating the cauldron casing, and the interior both sides of evaporating the cauldron casing are provided with branch vapour manifold respectively, and branch vapour manifold is connected with branch vapour arc tube through steam inlet manifold, and branch vapour arc tube is connected with steam transmission pipe through steam inlet manifold, and steam transmission pipe is connected with superheated steam generator's superheated steam outlet pipe, carries superheated steam for evaporating the cauldron casing.

The superheated steam generating device comprises a steam generating drum, a steam generating bin is arranged at the upper inner part of the steam generating drum, the steam generating drum is communicated with a water supplementing pipe, the superheated steam generating device also comprises a plurality of steam superheating pipes, a front smoke bin and a rear smoke bin are respectively arranged outside the two ends of the steam generating drum, and a smoke outlet is arranged in the rear smoke bin; a low-temperature smoke tube and a high-temperature smoke tube penetrate through the steam generation drum below the steam generation bin, one ends of the low-temperature smoke tube and the high-temperature smoke tube are communicated with the front smoke bin, the other end of the low-temperature smoke tube is communicated with the rear smoke bin, and the other end of the high-temperature smoke tube is used for introducing smoke; the steam superheating pipe is arranged in the low-temperature smoke pipe or the high-temperature smoke pipe, a gap for smoke to pass through is reserved between the outer wall of the steam superheating pipe and the inner wall of the low-temperature smoke pipe or the high-temperature smoke pipe, the steam inlet end of the steam superheating pipe is communicated with a steam guide pipe through a steam collecting pipe, the steam guide pipe is communicated with the steam generation bin through a steam outlet pipe, the steam outlet end of the steam superheating pipe is communicated with a superheated steam outlet pipe through the superheated steam collecting pipe, and superheated steam is output through the superheated steam outlet pipe. The front cigarette cabin and the rear cigarette cabin can be provided with ash cleaning doors which can seal and conveniently clean ash. The flue gas enters from the high-temperature flue pipe used for introducing into the flue gas end and passes through the high-temperature flue pipe, and the flue gas exchanges heat with water in the steam generation boiler barrel to generate saturated steam in the steam generation bin in the process of passing through the high-temperature flue pipe; the generated saturated steam is led out from a steam outlet pipe, enters a steam collecting pipe through a steam guide pipe, and then is distributed into a steam overheating pipe through the steam collecting pipe; the smoke passes through the high-temperature smoke pipe and then enters the front smoke cabin, then enters the low-temperature smoke pipe at the end of the front smoke cabin and passes through the low-temperature smoke pipe, and in the process of passing through the low-temperature smoke pipe, the steam in the steam overheating pipe sleeved in the low-temperature smoke pipe is heated to generate overheated steam; the flue gas passes through the low-temperature flue pipe and exchanges heat with water in the steam generation boiler barrel to generate saturated steam, the flue gas passes through the low-temperature flue pipe and then enters the rear smoke bin, the flue gas entering the rear smoke bin continuously heats a steam overheating pipe and an overheating steam collecting pipe which are arranged in the rear smoke bin, and finally the flue gas is discharged from a flue gas outlet of the rear smoke bin.

Further preferred is: the steam generation drum is provided with a pressure relief valve mounting seat for mounting a pressure relief valve.

Further preferred is: the steam generation drum is provided with a pressure gauge valve mounting seat for mounting a pressure gauge valve.

Further preferred is: the steam generation drum is provided with a water level gauge mounting seat for mounting a water level gauge for monitoring water level.

Further preferred is: the steam guide pipe comprises a steam guide pipe I, a steam guide pipe II and a steam guide pipe III, and control valves are arranged on the steam guide pipe I, the steam guide pipe II and the steam guide pipe III; the steam outlet pipe comprises a No. I steam outlet pipe, a No. II steam outlet pipe and a No. III steam outlet pipe, and the No. I steam guide pipe, the No. II steam guide pipe and the No. III steam guide pipe are respectively communicated with the steam generation bin through the No. I steam outlet pipe, the No. II steam outlet pipe and the No. III steam outlet pipe; steam-water separators are arranged at the steam generating bin ends of the No. I steam outlet pipe and the No. III steam outlet pipe.

Further preferred is: catch water include the lower floor bottom plate, the lower floor bottom plate on be provided with a plurality of big steam through holes, be provided with the curb plate that encloses into logical steam storehouse on the bottom plate of lower floor on the periphery of lower floor bottom plate, the top of curb plate is used for the top inner wall connection with steam generation boiler barrel, it has the baffle to lead to separating in the steam storehouse, the baffle will lead to separating into low moisture content storehouse and well moisture content storehouse in the steam storehouse, the top of the lower floor bottom plate in the low moisture content storehouse is provided with the upper floor bottom plate, be provided with a plurality of little steam through holes on the upper floor bottom plate, No. I steam outlet pipe and low moisture content storehouse intercommunication, No. III steam outlet pipe and well moisture content storehouse intercommunication. The aperture of the large steam through hole is larger than that of the small steam through hole.

Further preferred is: the inner lower part of the steam generation drum is provided with a combustion channel, and the smoke outlet end of the combustion channel is communicated with the smoke inlet end of the high-temperature smoke pipe through the smoke inlet bin. The combustion channel can be provided with a combustor for combusting natural gas or fuel oil, and heat radiation generated by combusting the natural gas or the fuel oil is utilized to exchange heat with water in the steam generation drum to generate saturated steam; or the steam generating drum can be arranged on a hearth of the steam furnace, and heat radiation generated by fuel combustion in the hearth of the steam furnace is utilized to exchange heat with water in the steam generating drum to generate saturated steam.

Further preferred is: the number of the low-temperature smoke pipes and the high-temperature smoke pipes is multiple; the steam collecting pipe is arranged in the front smoke bin, the superheated steam collecting pipe is arranged in the rear smoke bin, and each steam superheating pipe is arranged in more than three odd low-temperature smoke pipes or high-temperature smoke pipes in a reciprocating mode.

Further preferred is: the number of the low-temperature smoke pipes and the high-temperature smoke pipes is multiple; the steam collecting pipe and the superheated steam collecting pipe are arranged in the rear smoke cabin, and each steam superheating pipe is arranged in more than two even low-temperature smoke pipes or high-temperature smoke pipes in a reciprocating mode.

The number of the low-temperature smoke pipes is set to be one, the number of the high-temperature smoke pipes is set to be multiple, the number of the low-temperature smoke pipes is set to be one, the pipe diameter of one low-temperature smoke pipe or one high-temperature smoke pipe is large, and each steam superheater pipe is arranged in the low-temperature smoke pipe or the high-temperature smoke pipe in a reciprocating mode.

The steaming step comprises the following steps:

(1) and (4) placing the aerocrete after static curing in a still kettle, and closing a sealing door of the still kettle.

(2) Introducing superheated steam into the autoclave to heat the aerated concrete to 220 ℃, wherein the temperature is required to be slowly increased and is increased by 1-1.5 ℃ per minute; the temperature of the superheated steam is 230 ℃ and 250 ℃, the water content is 10-13%, and the pressure is 0.3-0.5 Mpa.

(3) The temperature in the autoclave is maintained at 210-220 ℃, the holding time is 3.5-4.5 hours, and the pressure in the autoclave is 0.3-0.5 Mpa.

(4) Stopping introducing superheated steam into the still kettle, decompressing and cooling the still kettle, and ensuring that the temperature in the still kettle is reduced to less than 1 ℃ per minute.

(5) And when the pressure in the autoclave is 0Mpa and the temperature in the autoclave is less than 60 ℃, opening a sealing door of the autoclave, removing the aerated concrete, and finishing the steam curing of the aerated concrete. Because the temperature and the pressure in the still kettle need to be maintained, superheated vacuum needs to be continuously introduced in the process, steam and condensed water are also discharged, the steam discharged from the still kettle can be recycled, the steam can be used for static curing of aerated concrete, preheating of the aerated concrete and the like, and the condensed water can be recycled for generating steam.

Further preferred is: before introducing superheated steam into the autoclave, vacuumizing the autoclave to a vacuum degree of-0.08 to-0.06 MPa. The steam curing process is characterized in that the autoclave is firstly vacuumized and then is filled with superheated steam, the steam can quickly penetrate through aerated concrete, the temperature difference between the core and the outside is reduced, heating is accelerated, the effect of the silicon-calcium hydrothermal synthesis reaction is ensured, and a better steam curing effect is achieved.

The low-pressure superheated steam has the advantages of being applied to aerated concrete steam-curing technology:

1. the superheated steam generating device adopted in the steam generating drum body can generate superheated steam with the water content of 13% and the temperature of more than 220 ℃, so that sufficient water is provided for the hydro-thermal synthesis reaction of silicon and calcium, and the effect of the hydro-thermal synthesis reaction of silicon and calcium is ensured. For the aerated concrete steam curing device using low-pressure superheated steam, the superheated steam with the steam pressure not more than 0.5Mpa is used as a steam curing medium, the saturated steam pressure is not less than 1.2Mpa compared with the saturated steam pressure required by the current aerated concrete steam curing system, the steam pressure is 3 to 4 times lower than the saturated steam pressure required by the current aerated concrete steam curing system, the danger coefficient is low, the potential safety hazard is reduced, and the equipment manufacturing cost and the steam curing cost are reduced.

2. The superheated steam generating device is characterized in that a steam superheater tube structure is sleeved in a low-temperature smoke tube or a high-temperature smoke tube, a gap for smoke to pass through is reserved between the outer wall of the steam superheater tube and the inner wall of the low-temperature smoke tube or the high-temperature smoke tube, the steam superheater tube is heated to generate superheated steam by utilizing the flow of the smoke in the gap, and meanwhile, the superheated steam exchanges heat with water in a steam generating drum to generate saturated steam. The steam generation drum has good pressure bearing performance, can be used for an aerated concrete steam-curing device by superheated steam under normal pressure and low pressure, can also be used for an aerated concrete steam-curing device by superheated steam under pressure bearing and low pressure, can be suitable for a solid layer combustion steam boiler, can also be suitable for a natural gas or fuel oil steam boiler, and has wide applicability.

3. The superheated steam generating device is provided with three steam guide pipes and three steam outlet pipes, the three steam guide pipes are provided with control valves, the steam guide pipes are installed at the steam generating bin ends with the two steam outlet pipes, the steam moisture content output by saturated steam and the steam moisture content output by superheated steam can be adjusted in three levels through controlling the control valves, and the superheated steam generating device is suitable for and meets the requirements of different steam moisture contents.

Drawings

FIG. 1 is a schematic configuration diagram of a superheated steam generator according to example 1;

FIG. 2 is a schematic left side view of FIG. 1;

FIG. 3 is a schematic view taken from the direction A-A of FIG. 1;

FIG. 4 is a schematic view of FIG. 2 taken along line B-B;

FIG. 5 is a schematic top view of FIG. 1;

FIG. 6 is a schematic perspective view of a superheated steam generator according to example 1;

FIG. 7 is a schematic configuration diagram of a superheated steam generator according to embodiment 2;

FIG. 8 is a schematic top view of FIG. 7;

FIG. 9 is a schematic perspective view of a superheated steam generator according to example 2;

FIG. 10 is a schematic configuration diagram of a superheated steam-generating device according to example 3;

FIG. 11 is a schematic left side view of FIG. 10;

FIG. 12 is a schematic top view of FIG. 10;

FIG. 13 is a schematic view of FIG. 10 taken along line C-C;

FIG. 14 is a schematic view from D-D of FIG. 11;

FIG. 15 is a schematic perspective view of a superheated steam generator according to example 3;

FIG. 16 is a schematic view of the steam-water separator;

FIG. 17 is a schematic view of FIG. 16 taken from direction E-E;

FIG. 18 is a schematic perspective view of a steam-water separator;

FIG. 19 is a left side view of FIG. 10 in embodiment 5;

FIG. 20 is a schematic structural view of a low-pressure superheated steam applied to an aerated concrete steam-curing facility;

FIG. 21 is a schematic perspective view of the application of low-pressure superheated steam to an aerated concrete steam-curing facility;

FIG. 22 is a schematic view of the structure of an autoclave;

FIG. 23 is a schematic view from direction F-F of FIG. 22;

FIG. 24 is a schematic view from the direction G-G in FIG. 22;

the names corresponding to the sequence numbers in the figure are:

1. front smoke bin, No. 2 and No. I steam guide pipes, No. 3 and No. II steam guide pipes, 4, control valves, No. 5 and No. I steam outlet pipes, No. 6 and No. II steam outlet pipes, 7, a water level gauge mounting seat, 8, a pressure relief valve mounting seat, 9, a pressure gauge valve mounting seat, 10, a water replenishing pipe, 11, a steam generation boiler barrel, 12, a superheated steam outlet pipe, 13, a rear smoke bin, 14, a smoke outlet, 15 and No. III steam guide pipes, 16 and No. III steam outlet pipes, 17, a steam-water separator, 18, a low-temperature smoke pipe, 19, a steam pipe, 20, a high-temperature smoke pipe, 21, a steam generation bin, 22, a steam collecting pipe, 23, a superheated steam collecting pipe, 24, a combustion channel, 25, a smoke passing bin, 26, a lower bottom plate, 27, a side plate, 28, an upper bottom plate, 29, a small steam passing hole, 30, a low-water-content bin, 31, a partition plate, 32, a middle-water-content bin, 33 and a large steam passing hole, 34. the system comprises a sealing door 35, an autoclave shell 36, a temperature measuring meter 37, a humidity measuring meter 38, a manual condensate discharging pipe 39, a steam inlet manifold 40, an automatic condensate discharging pipe 41, a vacuum pump 42, a vacuum pump pipe seat 43, a pressure release valve 44, a steam distributing arc pipe 45, a steam inlet main pipe 46, a steam delivery pipe 47, an overheat steam generating device 48, a base 49, a rail 50, aerated concrete 51 and a steam distributing manifold.

Detailed Description

In order to make the technical scheme and advantages of the present application clearer, the following description clearly and completely describes the technical scheme of applying the low-pressure superheated steam to the aerated concrete steam-curing device by combining the embodiment and the attached drawings.

Example 1

The low-pressure superheated steam is applied to the aerated concrete steam curing device, and comprises a still kettle shell 35, a base 48 and a superheated steam generating device 47, wherein the still kettle shell 35 is arranged on the base 48, and a sealing door 34 is arranged on the still kettle shell 35; the still kettle shell 35 is provided with a temperature measuring meter 36, a humidity measuring meter 37, a vacuum pump pipe seat 42 and a pressure release valve 43, and the vacuum pump pipe seat 42 is connected with a vacuum pump 41 for vacuumizing the still kettle shell 35; a manual condensed water discharge pipe 38 and an automatic condensed water discharge pipe 40 are arranged at the bottom of the still kettle shell 35; the inner lower part of the still kettle shell 35 is provided with a track 49 for guiding and conveying aerated concrete 50, two inner sides of the still kettle shell 35 are respectively provided with a steam distribution manifold 51, the steam distribution manifold 51 is connected with a steam distribution arc pipe 44 through a steam inlet manifold 39, the steam distribution arc pipe 44 is connected with a steam transmission pipe 46 through a steam inlet main pipe 45, and the steam transmission pipe 46 is connected with an overheated steam outlet pipe of an overheated steam generating device 47 to transmit overheated steam for the still kettle shell 35.

The superheated steam generating device 47 comprises a steam generating drum 11, the steam generating drum 11 can be installed on a hearth of a steam furnace, a steam generating bin 21 is arranged at the upper inner part of the steam generating drum 11, the steam generating drum 11 is communicated with a water supplementing pipe 10, the superheated steam generating device also comprises a plurality of steam superheating pipes 19, a front smoke bin 1 and a rear smoke bin 13 are respectively arranged outside the two ends of the steam generating drum 11, and a smoke outlet 14 is arranged on the rear smoke bin 13; a plurality of low-temperature smoke pipes 18 and high-temperature smoke pipes 20 penetrate through the steam generation drum 11 below the steam generation bin 21, one ends of the low-temperature smoke pipes 18 and the high-temperature smoke pipes 20 are communicated with the front smoke bin 1, the other ends of the low-temperature smoke pipes 18 are communicated with the rear smoke bin 13, and the other ends of the high-temperature smoke pipes 20 are used for introducing smoke; the steam superheater 19 is arranged in the low-temperature smoke pipe 18, a gap for smoke to pass through is reserved between the outer wall of the steam superheater 19 and the inner wall of the low-temperature smoke pipe 18, the steam inlet end of the steam superheater 19 is communicated with a steam guide pipe through a steam header 22, the steam guide pipe is communicated with a steam generation bin 21 through a steam outlet pipe, the steam outlet end of the steam superheater 19 is communicated with a superheated steam outlet pipe 12 through a superheated steam header 23, and superheated steam is output through the superheated steam outlet pipe 12. The front cigarette chamber 1 and the rear cigarette chamber 13 can be provided with ash cleaning doors which can seal and clean ash conveniently.

The steam generation drum 11 is provided with a pressure relief valve mounting seat 8 for mounting a pressure relief valve.

The steam generation drum 11 is provided with a pressure gauge valve mounting seat 9 for mounting a pressure gauge valve.

The steam generation drum 11 is provided with a water level gauge mounting seat 7 for mounting a water level gauge for monitoring water level.

The steam collecting pipe 22 is arranged in the front smoke bin 1, the superheated steam collecting pipe 23 is arranged in the rear smoke bin 13, and each steam superheating pipe 19 is arranged in more than three odd low-temperature smoke pipes 18 or high-temperature smoke pipes 20 in a reciprocating mode.

The steam guide pipe comprises a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15, and control valves 4 are arranged on the No. I steam guide pipe 2, the No. II steam guide pipe 3 and the No. III steam guide pipe 15; the steam outlet pipe comprises a No. I steam outlet pipe 5, a No. II steam outlet pipe 6 and a No. III steam outlet pipe 16, and a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15 are respectively communicated with the steam generation bin 21 through the No. I steam outlet pipe 5, the No. II steam outlet pipe 6 and the No. III steam outlet pipe 16; steam-water separators 17 are installed at the ends of the steam generating bin 21 of the No. I steam outlet pipe 5 and the No. III steam outlet pipe 16.

Steam-water separator 17 include lower floor's bottom plate 26, lower floor's bottom plate 26 on be provided with a plurality of big steam through holes 33, be provided with on lower floor's bottom plate 26 all around and enclose into the curb plate 27 that leads to the steam storehouse on the lower floor's bottom plate 26, the top of curb plate 27 is used for being connected with the top inner wall of steam generation boiler barrel 11, it has baffle 31 to lead to separating in the steam storehouse, baffle 31 will lead to separating into low moisture content storehouse 30 and well moisture content storehouse 32 in the steam storehouse, the top of lower floor's bottom plate 26 in the low moisture content storehouse 30 is provided with upper floor 28, be provided with a plurality of little steam through holes 29 on the upper floor 28, No. I steam outlet pipe 5 and low moisture content storehouse 30 intercommunication, No. III steam outlet pipe 16 and well moisture content storehouse 32 intercommunication. The aperture of the large steam vent 33 is larger than that of the small steam vent 29.

The operating principle of the superheated steam generator 47 is: the water replenishing pipe 10 is used for providing a water source for the steam generation drum 11, and monitoring the water level in the steam generation drum 11 through a water level gauge arranged on a water level gauge mounting seat 7 on the side edge of the steam generation drum 11, and is used for controlling and ensuring that the water level in the steam generation drum 11 is maintained in a certain range; the water in the steam generation drum 11 is subjected to heat exchange by utilizing radiant heat generated by fuel combustion in the steam furnace hearth, under the action of a flue gas induced draft fan on a flue gas outlet pipe, flue gas generated by combustion in the hearth enters from a flue gas inlet of a high-temperature smoke pipe 20 at the end of a rear smoke bin 13 and penetrates through the high-temperature smoke pipe 20, and the flue gas and the water in the steam generation drum 11 are subjected to heat exchange in the process of penetrating through the high-temperature smoke pipe 20 to generate saturated steam; saturated steam in the steam generating drum 11 is led out from a steam outlet pipe on the steam generating bin 21, the water content of the saturated steam is adjusted to a set range through a control valve 4 on the steam guide pipe, then enters a steam header 22 in the front smoke bin 1, is divided into steam superheater tubes 19 through the steam header 22, the smoke is discharged from a smoke outlet of a high-temperature smoke tube 20 in the front smoke bin 1 and enters the front smoke bin 1, then the smoke enters from the smoke inlet of the low-temperature smoke pipe 18 at the end of the front smoke bin 1 and passes through the low-temperature smoke pipe 18, the smoke passes through the gap between the inner wall of the low-temperature smoke pipe 18 and the outer wall of the steam superheater tube 19, in the process of passing through the low-temperature smoke pipe 18, the steam in the steam superheater tube 19 sleeved in the low-temperature smoke tube 18 is heated to generate superheated steam, and the superheated steam is collected by a superheated steam header 23 in the rear smoke bin 13 and then is output through a superheated steam outlet pipe 12; the flue gas in the low-temperature flue pipe 18 also continuously exchanges heat with the water in the steam generation drum 11, and finally enters the rear smoke bin 13 and is discharged from the flue gas outlet 14. The pressure relief valve arranged on the pressure relief valve mounting seat 4 ensures that the pressure of the steam generation drum 11 is within a designed safety range value.

Example 2

The low-pressure superheated steam is applied to the aerated concrete steam curing device, and comprises a still kettle shell 35, a base 48 and a superheated steam generating device 47, wherein the still kettle shell 35 is arranged on the base 48, and a sealing door 34 is arranged on the still kettle shell 35; the still kettle shell 35 is provided with a temperature measuring meter 36, a humidity measuring meter 37, a vacuum pump pipe seat 42 and a pressure release valve 43, and the vacuum pump pipe seat 42 is connected with a vacuum pump 41 for vacuumizing the still kettle shell 35; a manual condensed water discharge pipe 38 and an automatic condensed water discharge pipe 40 are arranged at the bottom of the still kettle shell 35; the inner lower part of the still kettle shell 35 is provided with a track 49 for guiding and conveying aerated concrete 50, two inner sides of the still kettle shell 35 are respectively provided with a steam distribution manifold 51, the steam distribution manifold 51 is connected with a steam distribution arc pipe 44 through a steam inlet manifold 39, the steam distribution arc pipe 44 is connected with a steam transmission pipe 46 through a steam inlet main pipe 45, and the steam transmission pipe 46 is connected with an overheated steam outlet pipe of an overheated steam generating device 47 to transmit overheated steam for the still kettle shell 35.

The superheated steam generating device 47 comprises a steam generating drum 11, the steam generating drum 11 can be installed on a hearth of a steam furnace, a steam generating bin 21 is arranged at the upper inner part of the steam generating drum 11, the steam generating drum 11 is communicated with a water supplementing pipe 10, the superheated steam generating device also comprises a plurality of steam superheating pipes 19, a front smoke bin 1 and a rear smoke bin 13 are respectively arranged outside the two ends of the steam generating drum 11, and a smoke outlet 14 is arranged on the rear smoke bin 13; a plurality of low-temperature smoke pipes 18 and high-temperature smoke pipes 20 penetrate through the steam generation drum 11 below the steam generation bin 21, one ends of the low-temperature smoke pipes 18 and the high-temperature smoke pipes 20 are communicated with the front smoke bin 1, the other ends of the low-temperature smoke pipes 18 are communicated with the rear smoke bin 13, and the other ends of the high-temperature smoke pipes 20 are used for introducing smoke; the steam superheater 19 is arranged in the low-temperature smoke pipe 18, a gap for smoke to pass through is reserved between the outer wall of the steam superheater 19 and the inner wall of the low-temperature smoke pipe 18, the steam inlet end of the steam superheater 19 is communicated with a steam guide pipe through a steam header 22, the steam guide pipe is communicated with a steam generation bin 21 through a steam outlet pipe, the steam outlet end of the steam superheater 19 is communicated with a superheated steam outlet pipe 12 through a superheated steam header 23, and superheated steam is output through the superheated steam outlet pipe 12. The front cigarette chamber 1 and the rear cigarette chamber 13 can be provided with ash cleaning doors which can seal and clean ash conveniently.

The steam generation drum 11 is provided with a pressure relief valve mounting seat 8 for mounting a pressure relief valve.

The steam generation drum 11 is provided with a pressure gauge valve mounting seat 9 for mounting a pressure gauge valve.

The steam generation drum 11 is provided with a water level gauge mounting seat 7 for mounting a water level gauge for monitoring water level.

The steam header 22 and the superheated steam header 23 are both arranged in the rear smoke bin 13, and each steam superheater 19 is arranged in more than two even low-temperature smoke pipes 18 or high-temperature smoke pipes 20 in a reciprocating manner.

The steam guide pipe comprises a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15, and control valves 4 are arranged on the No. I steam guide pipe 2, the No. II steam guide pipe 3 and the No. III steam guide pipe 15; the steam outlet pipe comprises a No. I steam outlet pipe 5, a No. II steam outlet pipe 6 and a No. III steam outlet pipe 16, and a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15 are respectively communicated with the steam generation bin 21 through the No. I steam outlet pipe 5, the No. II steam outlet pipe 6 and the No. III steam outlet pipe 16; steam-water separators 17 are installed at the ends of the steam generating bin 21 of the No. I steam outlet pipe 5 and the No. III steam outlet pipe 16.

Steam-water separator 17 include lower floor's bottom plate 26, lower floor's bottom plate 26 on be provided with a plurality of big steam through holes 33, be provided with on lower floor's bottom plate 26 all around and enclose into the curb plate 27 that leads to the steam storehouse on the lower floor's bottom plate 26, the top of curb plate 27 is used for being connected with the top inner wall of steam generation boiler barrel 11, it has baffle 31 to lead to separating in the steam storehouse, baffle 31 will lead to separating into low moisture content storehouse 30 and well moisture content storehouse 32 in the steam storehouse, the top of lower floor's bottom plate 26 in the low moisture content storehouse 30 is provided with upper floor 28, be provided with a plurality of little steam through holes 29 on the upper floor 28, No. I steam outlet pipe 5 and low moisture content storehouse 30 intercommunication, No. III steam outlet pipe 16 and well moisture content storehouse 32 intercommunication. The aperture of the large steam vent 33 is larger than that of the small steam vent 29.

The operating principle of the superheated steam generator 47 is: the water replenishing pipe 10 is used for providing a water source for the steam generation drum 11, and monitoring the water level in the steam generation drum 11 through a water level gauge arranged on a water level gauge mounting seat 7 on the side edge of the steam generation drum 11, and is used for controlling and ensuring that the water level in the steam generation drum 11 is maintained in a certain range; the water in the steam generation drum 11 is subjected to heat exchange by utilizing radiant heat generated by fuel combustion in the steam furnace hearth, under the action of a flue gas induced draft fan on a flue gas outlet pipe, flue gas generated by combustion in the hearth enters from a flue gas inlet of a high-temperature smoke pipe 20 at the end of a rear smoke bin 13 and penetrates through the high-temperature smoke pipe 20, and the flue gas and the water in the steam generation drum 11 are subjected to heat exchange in the process of penetrating through the high-temperature smoke pipe 20 to generate saturated steam; saturated steam in the steam generating drum 11 is led out from a steam outlet pipe on the steam generating bin 21, the water content of the saturated steam is adjusted to a set range through a control valve 4 on the steam guide pipe, then enters a steam header 22 in the rear smoke bin 13, is divided into steam superheater tubes 19 through the steam header 22, the smoke is discharged from a smoke outlet of a high-temperature smoke tube 20 in the front smoke bin 1 and enters the front smoke bin 1, then the smoke enters from the smoke inlet of the low-temperature smoke pipe 18 at the end of the front smoke bin 1 and passes through the low-temperature smoke pipe 18, the smoke passes through the gap between the inner wall of the low-temperature smoke pipe 18 and the outer wall of the steam superheater tube 19, in the process of passing through the low-temperature smoke pipe 18, the steam in the steam superheater tube 19 sleeved in the low-temperature smoke tube 18 is heated to generate superheated steam, and the superheated steam is collected by a superheated steam header 23 in the rear smoke bin 13 and then is output through a superheated steam outlet pipe 12; the flue gas in the low-temperature flue pipe 18 also continuously exchanges heat with the water in the steam generation drum 11, and finally enters the rear smoke bin 13 and is discharged from the flue gas outlet 14. The pressure relief valve arranged on the pressure relief valve mounting seat 4 ensures that the pressure of the steam generation drum 11 is within a designed safety range value.

Example 3

A low-pressure superheated steam is applied to aerated concrete steam curing devices, which comprises a steam generation drum 11, wherein a steam generation bin 21 is arranged at the upper inner part of the steam generation drum 11, the steam generation drum 11 is communicated with a water supplementing pipe 10, the low-pressure superheated steam curing devices also comprise a plurality of steam superheating pipes 19, the outer parts of two ends of the steam generation drum 11 are respectively provided with a front smoke bin 1 and a rear smoke bin 13, and the rear smoke bin 13 is provided with a smoke outlet 14; a plurality of low-temperature smoke pipes 18 and high-temperature smoke pipes 20 penetrate through the steam generation drum 11 below the steam generation bin 21, one ends of the low-temperature smoke pipes 18 and the high-temperature smoke pipes 20 are communicated with the front smoke bin 1, the other ends of the low-temperature smoke pipes 18 are communicated with the rear smoke bin 13, and the other ends of the high-temperature smoke pipes 20 are used for introducing smoke; the steam superheater 19 is arranged in the low-temperature smoke pipe 18 or the high-temperature smoke pipe 20, a gap for smoke to pass through is reserved between the outer wall of the steam superheater 19 and the inner wall of the low-temperature smoke pipe 18 or the high-temperature smoke pipe 20, the steam inlet end of the steam superheater 19 is communicated with a steam guide pipe through a steam header 22, the steam guide pipe is communicated with the steam generation bin 21 through a steam outlet pipe, the steam outlet end of the steam superheater 19 is communicated with a superheated steam outlet pipe 12 through a superheated steam header 23, and superheated steam is output through the superheated steam outlet pipe 12. The front cigarette chamber 1 and the rear cigarette chamber 13 can be provided with ash cleaning doors which can seal and clean ash conveniently.

The steam generation drum 11 is provided with a pressure relief valve mounting seat 8 for mounting a pressure relief valve.

The steam generation drum 11 is provided with a pressure gauge valve mounting seat 9 for mounting a pressure gauge valve.

The steam generation drum 11 is provided with a water level gauge mounting seat 7 for mounting a water level gauge for monitoring water level.

The steam collecting pipe 22 is arranged in the front smoke bin 1, the superheated steam collecting pipe 23 is arranged in the rear smoke bin 13, and each steam superheating pipe 19 is arranged in more than three odd low-temperature smoke pipes 18 or high-temperature smoke pipes 20 in a reciprocating mode. The steam guide pipe comprises a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15, and control valves 4 are arranged on the No. I steam guide pipe 2, the No. II steam guide pipe 3 and the No. III steam guide pipe 15; the steam outlet pipe comprises a No. I steam outlet pipe 5, a No. II steam outlet pipe 6 and a No. III steam outlet pipe 16, and a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15 are respectively communicated with the steam generation bin 21 through the No. I steam outlet pipe 5, the No. II steam outlet pipe 6 and the No. III steam outlet pipe 16; steam-water separators 17 are installed at the ends of the steam generating bin 21 of the No. I steam outlet pipe 5 and the No. III steam outlet pipe 16.

Steam-water separator 17 include lower floor's bottom plate 26, lower floor's bottom plate 26 on be provided with a plurality of big steam through holes 33, be provided with on lower floor's bottom plate 26 all around and enclose into the curb plate 27 that leads to the steam storehouse on the lower floor's bottom plate 26, the top of curb plate 27 is used for being connected with the top inner wall of steam generation boiler barrel 11, it has baffle 31 to lead to separating in the steam storehouse, baffle 31 will lead to separating into low moisture content storehouse 30 and well moisture content storehouse 32 in the steam storehouse, the top of lower floor's bottom plate 26 in the low moisture content storehouse 30 is provided with upper floor 28, be provided with a plurality of little steam through holes 29 on the upper floor 28, No. I steam outlet pipe 5 and low moisture content storehouse 30 intercommunication, No. III steam outlet pipe 16 and well moisture content storehouse 32 intercommunication. The aperture of the large steam vent 33 is larger than that of the small steam vent 29.

The inner lower part of the steam generation drum 11 is provided with a combustion channel 24, and the smoke outlet end of the combustion channel 24 is communicated with the smoke inlet end of the high-temperature smoke tube 20 through a smoke inlet bin 25. The combustion passage 24 may be provided with a burner for burning natural gas or fuel oil, and heat exchange is performed with water in the steam generation drum 11 by using heat radiation generated by burning natural gas or fuel oil to generate saturated steam.

The operating principle of the superheated steam generator 47 is: the water replenishing pipe 10 is used for providing a water source for the steam generation drum 11, and monitoring the water level in the steam generation drum 11 through a water level gauge arranged on a water level gauge mounting seat 7 on the side edge of the steam generation drum 11, and is used for controlling and ensuring that the water level in the steam generation drum 11 is maintained in a certain range; the natural gas or fuel oil is combusted by the combustor to generate heat, the water in the steam generation boiler barrel 11 is subjected to heat exchange through the radiant heat of the combustion channel 24, under the action of a flue gas induced draft fan on a flue gas outlet pipe, flue gas generated by combustion in the hearth enters from a flue gas inlet of a high-temperature smoke pipe 20 at the end of a rear smoke bin 13 and penetrates through the high-temperature smoke pipe 20, and the flue gas and the water in the steam generation boiler barrel 11 are subjected to heat exchange to generate saturated steam in the process of penetrating through the high-temperature smoke pipe 20; saturated steam in the steam generating drum 11 is led out from a steam outlet pipe on the steam generating bin 21, the water content of the saturated steam is adjusted to a set range through a control valve 4 on the steam guide pipe, then enters a steam header 22 in the rear smoke bin 13, is divided into steam superheater tubes 19 through the steam header 22, the smoke is discharged from a smoke outlet of a high-temperature smoke tube 20 in the front smoke bin 1 and enters the front smoke bin 1, then the smoke enters from the smoke inlet of the low-temperature smoke pipe 18 at the end of the front smoke bin 1 and passes through the low-temperature smoke pipe 18, the smoke passes through the gap between the inner wall of the low-temperature smoke pipe 18 and the outer wall of the steam superheater tube 19, in the process of passing through the low-temperature smoke pipe 18, the steam in the steam superheater tube 19 sleeved in the low-temperature smoke tube 18 is heated to generate superheated steam, and the superheated steam is collected by a superheated steam header 23 in the rear smoke bin 13 and then is output through a superheated steam outlet pipe 12; the flue gas in the low-temperature flue pipe 18 also continuously exchanges heat with the water in the steam generation drum 11, and finally enters the rear smoke bin 13 and is discharged from the flue gas outlet 14. The pressure relief valve arranged on the pressure relief valve mounting seat 4 ensures that the pressure of the steam generation drum 11 is within a designed safety range value.

Example 4

The low-pressure superheated steam is applied to the aerated concrete steam curing device, and comprises a still kettle shell 35, a base 48 and a superheated steam generating device 47, wherein the still kettle shell 35 is arranged on the base 48, and a sealing door 34 is arranged on the still kettle shell 35; the still kettle shell 35 is provided with a temperature measuring meter 36, a humidity measuring meter 37, a vacuum pump pipe seat 42 and a pressure release valve 43, and the vacuum pump pipe seat 42 is connected with a vacuum pump 41 for vacuumizing the still kettle shell 35; a manual condensed water discharge pipe 38 and an automatic condensed water discharge pipe 40 are arranged at the bottom of the still kettle shell 35; the inner lower part of the still kettle shell 35 is provided with a track 49 for guiding and conveying aerated concrete 50, two inner sides of the still kettle shell 35 are respectively provided with a steam distribution manifold 51, the steam distribution manifold 51 is connected with a steam distribution arc pipe 44 through a steam inlet manifold 39, the steam distribution arc pipe 44 is connected with a steam transmission pipe 46 through a steam inlet main pipe 45, and the steam transmission pipe 46 is connected with an overheated steam outlet pipe of an overheated steam generating device 47 to transmit overheated steam for the still kettle shell 35.

The superheated steam generating device 47 comprises a steam generating drum 11, a steam generating bin 21 is arranged at the upper inner part of the steam generating drum 11, the steam generating drum 11 is communicated with a water supplementing pipe 10, the superheated steam generating device also comprises a plurality of steam superheating pipes 19, a front smoke bin 1 and a rear smoke bin 13 are respectively arranged outside the two ends of the steam generating drum 11, and the rear smoke bin 13 is provided with a smoke outlet 14; a plurality of low-temperature smoke pipes 18 and high-temperature smoke pipes 20 penetrate through the steam generation drum 11 below the steam generation bin 21, one ends of the low-temperature smoke pipes 18 and the high-temperature smoke pipes 20 are communicated with the front smoke bin 1, the other ends of the low-temperature smoke pipes 18 are communicated with the rear smoke bin 13, and the other ends of the high-temperature smoke pipes 20 are used for introducing smoke; the steam superheater 19 is arranged in the low-temperature smoke pipe 18 or the high-temperature smoke pipe 20, a gap for smoke to pass through is reserved between the outer wall of the steam superheater 19 and the inner wall of the low-temperature smoke pipe 18 or the high-temperature smoke pipe 20, the steam inlet end of the steam superheater 19 is communicated with a steam guide pipe through a steam header 22, the steam guide pipe is communicated with the steam generation bin 21 through a steam outlet pipe, the steam outlet end of the steam superheater 19 is communicated with a superheated steam outlet pipe 12 through a superheated steam header 23, and superheated steam is output through the superheated steam outlet pipe 12. The front cigarette chamber 1 and the rear cigarette chamber 13 can be provided with ash cleaning doors which can seal and clean ash conveniently.

The steam generation drum 11 is provided with a pressure relief valve mounting seat 8 for mounting a pressure relief valve.

The steam generation drum 11 is provided with a pressure gauge valve mounting seat 9 for mounting a pressure gauge valve.

The steam generation drum 11 is provided with a water level gauge mounting seat 7 for mounting a water level gauge for monitoring water level.

The steam header 22 and the superheated steam header 23 are both arranged in the rear smoke bin 13, and each steam superheater 19 is arranged in more than two even low-temperature smoke pipes 18 or high-temperature smoke pipes 20 in a reciprocating manner.

The steam guide pipe comprises a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15, and control valves 4 are arranged on the No. I steam guide pipe 2, the No. II steam guide pipe 3 and the No. III steam guide pipe 15; the steam outlet pipe comprises a No. I steam outlet pipe 5, a No. II steam outlet pipe 6 and a No. III steam outlet pipe 16, and a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15 are respectively communicated with the steam generation bin 21 through the No. I steam outlet pipe 5, the No. II steam outlet pipe 6 and the No. III steam outlet pipe 16; steam-water separators 17 are installed at the ends of the steam generating bin 21 of the No. I steam outlet pipe 5 and the No. III steam outlet pipe 16.

Steam-water separator 17 include lower floor's bottom plate 26, lower floor's bottom plate 26 on be provided with a plurality of big steam through holes 33, be provided with on lower floor's bottom plate 26 all around and enclose into the curb plate 27 that leads to the steam storehouse on the lower floor's bottom plate 26, the top of curb plate 27 is used for being connected with the top inner wall of steam generation boiler barrel 11, it has baffle 31 to lead to separating in the steam storehouse, baffle 31 will lead to separating into low moisture content storehouse 30 and well moisture content storehouse 32 in the steam storehouse, the top of lower floor's bottom plate 26 in the low moisture content storehouse 30 is provided with upper floor 28, be provided with a plurality of little steam through holes 29 on the upper floor 28, No. I steam outlet pipe 5 and low moisture content storehouse 30 intercommunication, No. III steam outlet pipe 16 and well moisture content storehouse 32 intercommunication. The aperture of the large steam vent 33 is larger than that of the small steam vent 29.

The inner lower part of the steam generation drum 11 is provided with a combustion channel 24, and the smoke outlet end of the combustion channel 24 is communicated with the smoke inlet end of the high-temperature smoke tube 20 through a smoke inlet bin 25. The combustion passage 24 may be provided with a burner for burning natural gas or fuel oil, and heat exchange is performed with water in the steam generation drum 11 by using heat radiation generated by burning natural gas or fuel oil to generate saturated steam.

Example 5

The low-pressure superheated steam is applied to the aerated concrete steam curing device, and comprises a still kettle shell 35, a base 48 and a superheated steam generating device 47, wherein the still kettle shell 35 is arranged on the base 48, and a sealing door 34 is arranged on the still kettle shell 35; the still kettle shell 35 is provided with a temperature measuring meter 36, a humidity measuring meter 37, a vacuum pump pipe seat 42 and a pressure release valve 43, and the vacuum pump pipe seat 42 is connected with a vacuum pump 41 for vacuumizing the still kettle shell 35; a manual condensed water discharge pipe 38 and an automatic condensed water discharge pipe 40 are arranged at the bottom of the still kettle shell 35; the inner lower part of the still kettle shell 35 is provided with a track 49 for guiding and conveying aerated concrete 50, two inner sides of the still kettle shell 35 are respectively provided with a steam distribution manifold 51, the steam distribution manifold 51 is connected with a steam distribution arc pipe 44 through a steam inlet manifold 39, the steam distribution arc pipe 44 is connected with a steam transmission pipe 46 through a steam inlet main pipe 45, and the steam transmission pipe 46 is connected with an overheated steam outlet pipe of an overheated steam generating device 47 to transmit overheated steam for the still kettle shell 35.

The superheated steam generating device 47 comprises a steam generating drum 11, a steam generating bin 21 is arranged at the upper inner part of the steam generating drum 11, the steam generating drum 11 is communicated with a water supplementing pipe 10, the superheated steam generating device also comprises a plurality of steam superheating pipes 19, a front smoke bin 1 and a rear smoke bin 13 are respectively arranged outside the two ends of the steam generating drum 11, and the rear smoke bin 13 is provided with a smoke outlet 14; a low-temperature smoke tube 18 and a high-temperature smoke tube 20 penetrate through the steam generation drum 11 below the steam generation bin 21, one ends of the low-temperature smoke tube 18 and the high-temperature smoke tube 20 are communicated with the front smoke bin 1, the other end of the low-temperature smoke tube 18 is communicated with the rear smoke bin 13, and the other end of the high-temperature smoke tube 20 is used for introducing smoke; the steam superheating pipes 19 are arranged in the low-temperature smoke pipes 18 or the high-temperature smoke pipes 20, the number of the low-temperature smoke pipes 18 is one, the number of the high-temperature smoke pipes 20 is multiple, the steam collecting pipes 22 are arranged in the front smoke warehouse 1, the superheated steam collecting pipes 23 are arranged in the rear smoke warehouse 13, and each steam superheating pipe 19 is arranged in the low-temperature smoke pipes 18 in a reciprocating mode. A gap for passing flue gas is reserved between the outer wall of the steam superheater 19 and the inner wall of the low-temperature smoke pipe 18, the steam inlet end of the steam superheater 19 is communicated with a steam guide pipe through a steam header 22, the steam guide pipe is communicated with the steam generation bin 21 through a steam outlet pipe, the steam outlet end of the steam superheater 19 is communicated with a superheated steam outlet pipe 12 through a superheated steam header 23, and superheated steam is output through the superheated steam outlet pipe 12. The front cigarette chamber 1 and the rear cigarette chamber 13 can be provided with ash cleaning doors which can seal and clean ash conveniently.

The steam generation drum 11 is provided with a pressure relief valve mounting seat 8 for mounting a pressure relief valve.

The steam generation drum 11 is provided with a pressure gauge valve mounting seat 9 for mounting a pressure gauge valve.

The steam generation drum 11 is provided with a water level gauge mounting seat 7 for mounting a water level gauge for monitoring water level.

The steam guide pipe comprises a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15, and control valves 4 are arranged on the No. I steam guide pipe 2, the No. II steam guide pipe 3 and the No. III steam guide pipe 15; the steam outlet pipe comprises a No. I steam outlet pipe 5, a No. II steam outlet pipe 6 and a No. III steam outlet pipe 16, and a No. I steam guide pipe 2, a No. II steam guide pipe 3 and a No. III steam guide pipe 15 are respectively communicated with the steam generation bin 21 through the No. I steam outlet pipe 5, the No. II steam outlet pipe 6 and the No. III steam outlet pipe 16; steam-water separators 17 are installed at the ends of the steam generating bin 21 of the No. I steam outlet pipe 5 and the No. III steam outlet pipe 16.

Steam-water separator 17 include lower floor's bottom plate 26, lower floor's bottom plate 26 on be provided with a plurality of big steam through holes 33, be provided with on lower floor's bottom plate 26 all around and enclose into the curb plate 27 that leads to the steam storehouse on the lower floor's bottom plate 26, the top of curb plate 27 is used for being connected with the top inner wall of steam generation boiler barrel 11, it has baffle 31 to lead to separating in the steam storehouse, baffle 31 will lead to separating into low moisture content storehouse 30 and well moisture content storehouse 32 in the steam storehouse, the top of lower floor's bottom plate 26 in the low moisture content storehouse 30 is provided with upper floor 28, be provided with a plurality of little steam through holes 29 on the upper floor 28, No. I steam outlet pipe 5 and low moisture content storehouse 30 intercommunication, No. III steam outlet pipe 16 and well moisture content storehouse 32 intercommunication. The aperture of the large steam vent 33 is larger than that of the small steam vent 29.

The inner lower part of the steam generation drum 11 is provided with a combustion channel 24, and the smoke outlet end of the combustion channel 24 is communicated with the smoke inlet end of the high-temperature smoke tube 20 through a smoke inlet bin 25. The combustion passage 24 may be provided with a burner for burning natural gas or fuel oil, and heat exchange is performed with water in the steam generation drum 11 by using heat radiation generated by burning natural gas or fuel oil to generate saturated steam.

The above description is not intended to limit the present application, and the present application is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions or substitutions within the spirit and scope of the present application.

Claims (10)

1. The utility model provides a low pressure superheated steam is applied to aerated concrete and evaporates foster device which characterized in that: the device comprises a still kettle shell (35), a base (48) and a superheated steam generating device (47), wherein the still kettle shell (35) is arranged on the base (48), and a sealing door (34) is arranged on the still kettle shell (35); a temperature measuring meter (36), a humidity measuring meter (37), a vacuum pump pipe seat (42) and a pressure release valve (43) are arranged on the still kettle shell (35), and the vacuum pump pipe seat (42) is connected with a vacuum pump (41) for vacuumizing the still kettle shell (35); a manual condensed water discharge pipe (38) and an automatic condensed water discharge pipe (40) are arranged at the bottom of the still kettle shell (35); the track (49) used for guiding and conveying the aerated concrete (50) is installed at the inner lower part of the still kettle shell (35), steam distribution manifolds (51) are respectively arranged on the inner two sides of the still kettle shell (35), the steam distribution manifolds (51) are connected with steam distribution arc pipes (44) through steam inlet manifolds (39), the steam distribution arc pipes (44) are connected with steam transmission pipes (46) through steam inlet main pipes (45), the steam transmission pipes (46) are connected with superheated steam outlet pipes of the superheated steam generating devices (47), and superheated steam is transmitted to the still kettle shell (35).

2. The low-pressure superheated steam as claimed in claim 1 is applied to an aerated concrete steam-curing device, and is characterized in that: the superheated steam generating device (47) comprises a steam generating drum (11), wherein a steam generating bin (21) is arranged at the upper inner part of the steam generating drum (11), the steam generating drum (11) is communicated with a water supplementing pipe (10), the superheated steam generating device also comprises a plurality of steam superheating pipes (19), the outer parts of two ends of the steam generating drum (11) are respectively provided with a front smoke bin (1) and a rear smoke bin (13), and the rear smoke bin (13) is provided with a smoke outlet (14); a low-temperature smoke tube (18) and a high-temperature smoke tube (20) penetrate through the steam generation drum (11) below the steam generation bin (21), one ends of the low-temperature smoke tube (18) and the high-temperature smoke tube (20) are communicated with the front smoke bin (1), the other end of the low-temperature smoke tube (18) is communicated with the rear smoke bin (13), and the other end of the high-temperature smoke tube (20) is used for introducing smoke; each steam superheater tube (19) is arranged in a low-temperature smoke tube (18) or a high-temperature smoke tube (20), the steam inlet end of each steam superheater tube (19) is communicated with a steam guide tube through a steam header (22), the steam guide tube is communicated with a steam generation bin (21) through a steam outlet tube, and the steam outlet end of each steam superheater tube (19) is communicated with a superheated steam outlet tube (12) through a superheated steam header (23).

3. The low-pressure superheated steam as claimed in claim 2 is applied to an aerated concrete steam-curing device, and is characterized in that: the steam guide pipe comprises a No. I steam guide pipe (2), a No. II steam guide pipe (3) and a No. III steam guide pipe (15), and control valves (4) are arranged on the No. I steam guide pipe (2), the No. II steam guide pipe (3) and the No. III steam guide pipe (15); the steam outlet pipe comprises a No. I steam outlet pipe (5), a No. II steam outlet pipe (6) and a No. III steam outlet pipe (16), and the No. I steam guide pipe (2), the No. II steam guide pipe (3) and the No. III steam guide pipe (15) are respectively communicated with the steam generation bin (21) through the No. I steam outlet pipe (5), the No. II steam outlet pipe (6) and the No. III steam outlet pipe (16); steam-water separators (17) are arranged at the steam generating bin (21) ends of the No. I steam outlet pipe (5) and the No. III steam outlet pipe (16).

4. The low-pressure superheated steam as claimed in claim 3 is applied to an aerated concrete steam-curing device, and is characterized in that: steam-water separator (17) including lower floor's bottom plate (26), lower floor's bottom plate (26) on be provided with a plurality of big steam through holes (33), be provided with around lower floor's bottom plate (26) and enclose into curb plate (27) that lead to the steam storehouse on lower floor's bottom plate (26), the top of curb plate (27) is used for with the top inner wall connection of steam generation boiler section of thick bamboo (11), it has baffle (31) to lead to the steam storehouse internal separation, baffle (31) will lead to separating into low moisture content storehouse (30) and well moisture content storehouse (32) in the steam storehouse, the top of lower floor's bottom plate (26) in low moisture content storehouse (30) is provided with upper floor's bottom plate (28), be provided with a plurality of little steam through holes (29) on upper floor's bottom plate (28), No. I steam outlet pipe (5) and low moisture content storehouse (30) intercommunication, No. III steam outlet pipe (16) and well moisture content storehouse (32) intercommunication.

5. The low-pressure superheated steam as claimed in claim 2 is applied to an aerated concrete steam-curing device, and is characterized in that: the inner lower part of the steam generation drum (11) is provided with a combustion channel (24), and the smoke outlet end of the combustion channel (24) is communicated with the smoke inlet end of the high-temperature smoke pipe (20) through a smoke inlet bin (25).

6. The low-pressure superheated steam as claimed in claim 2 is applied to an aerated concrete steam-curing device, and is characterized in that: the number of the low-temperature smoke pipes (18) and the high-temperature smoke pipes (20) is multiple, the steam collecting pipe (22) is arranged in the front smoke bin (1), the superheated steam collecting pipe (23) is arranged in the rear smoke bin (13), and each steam superheating pipe (19) is arranged in more than three odd-numbered low-temperature smoke pipes (18) or high-temperature smoke pipes (20) in a reciprocating mode.

7. The low-pressure superheated steam as claimed in claim 2 is applied to an aerated concrete steam-curing device, and is characterized in that: the number of the low-temperature smoke pipes (18) and the high-temperature smoke pipes (20) is multiple, the steam collecting pipes (22) and the superheated steam collecting pipes (23) are arranged in the rear smoke cabin (13), and each steam superheated pipe (19) is arranged in more than two even low-temperature smoke pipes (18) or high-temperature smoke pipes (20) in a reciprocating mode.

8. The low-pressure superheated steam as claimed in claim 2 is applied to an aerated concrete steam-curing device, and is characterized in that: the number of the low-temperature smoke pipes (18) is one, the number of the high-temperature smoke pipes (20) is multiple, or the number of the low-temperature smoke pipes (18) is multiple, the number of the high-temperature smoke pipes (20) is one, the steam collecting pipes (22) and the superheated steam collecting pipes (23) are arranged in the rear smoke bin (13), and each steam superheated pipe (19) is arranged in the low-temperature smoke pipes (18) or the high-temperature smoke pipes (20) in a reciprocating mode.

9. The low-pressure superheated steam as claimed in claim 2 is applied to an aerated concrete steam-curing device, and is characterized in that: the steam generation drum (11) is provided with a pressure relief valve mounting seat (8) for mounting a pressure relief valve.

10. The low-pressure superheated steam as claimed in claim 2 is applied to an aerated concrete steam-curing device, and is characterized in that: a pressure gauge valve mounting seat (9) is arranged on the steam generating drum (11) and is used for mounting a pressure gauge valve; the steam generation drum (11) is also provided with a water level gauge mounting seat (7) for mounting a water level gauge for monitoring the water level.

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