CN114833934B - Steam distribution system of still kettle and use method thereof - Google Patents
Steam distribution system of still kettle and use method thereof Download PDFInfo
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- CN114833934B CN114833934B CN202210539631.5A CN202210539631A CN114833934B CN 114833934 B CN114833934 B CN 114833934B CN 202210539631 A CN202210539631 A CN 202210539631A CN 114833934 B CN114833934 B CN 114833934B
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- 238000009826 distribution Methods 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims abstract description 19
- 230000000630 rising effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 8
- 239000004567 concrete Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011455 calcium-silicate brick Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention belongs to the technical field of matching equipment of a still kettle, and particularly provides a steam distribution system of the still kettle, which comprises: the system comprises a main steam distribution cylinder, a plurality of heating cylinder distributors, a plurality of groups of reverse steam distribution cylinder groups, a plurality of exhaust cylinder distributors and a plurality of still kettles; the main steam distribution cylinder is respectively connected with the plurality of heating steam distribution cylinders through a plurality of pipelines; each heating cylinder is respectively connected with a plurality of still kettles through a plurality of pipelines; each steam reversing and distributing cylinder group comprises two steam reversing and distributing cylinders which are connected through pipelines, and each steam reversing and distributing cylinder is respectively connected with a plurality of still kettles through a plurality of pipelines; and the exhaust steam distributing cylinder is respectively connected with the plurality of still kettles through a plurality of pipelines. According to the invention, multiple air distributing cylinders are arranged, so that process conflicts among the still kettles are avoided, and the utilization rate is improved; when steam is poured, only one group of steam pouring and separating cylinders corresponding to the still kettle need to be opened, the steam can be poured into the other still kettle from one still kettle, and the steam discharging and separating cylinders do not need to be used, so that the steam discharging work is not influenced.
Description
Technical Field
The invention belongs to the technical field of matching equipment of an autoclave, and particularly relates to a steam distribution system of the autoclave and a using method thereof.
Background
The autoclave is a large-scale pressure vessel with large volume and heavy weight, and is widely used for the autoclave curing of building materials such as aerated concrete blocks, sand-lime bricks, coal-lime bricks and the like. In the process of preparing the autoclaved aerated concrete, the semi-finished blank is required to be put into an autoclave for steam curing, steam is required to be introduced into the autoclave, the pressure is maintained for several hours in a high-temperature and high-pressure state, and then the steam is discharged. The existing steam-pressing equipment needs manual steam distribution, so that the temperature and the air pressure of the steam-pressing kettle can meet the requirements only by multiple manual operations, the operation is troublesome, and the use is inconvenient. In addition, in order to save steam, it is often necessary to connect the still kettle requiring steam discharge to the still kettle requiring steam admission. Taking a factory equipped with 10 steam kettles as an example, the existing steam distribution system divides 10 steam kettles into 2 groups, each 5 steam kettles correspond to one vacuumizing distribution pipe, one heating distribution cylinder, one steam reversing distribution cylinder and one exhaust distribution cylinder, when steam kettle in one group needs to reverse steam to one steam kettle in the other group, the steam exhausting distribution cylinder needs to be used, during steam reversing period, the steam exhausting distribution cylinder can not perform steam exhausting work, and the number of electric valves of the steam distribution system is close to 50, so that the construction cost is high. Therefore, the steam distribution system of the still kettle provided by the invention adopts the plurality of steam reversing and distributing cylinders, the problem of conflict between steam reversing of the still kettle and the still kettle in production is effectively avoided, the usage amount of an electric valve can be reduced, the occupied area of the steam distribution system is reduced, the cost is saved, automatic adjustment can be realized in a heating stage, the fluctuation of temperature or pressure in the heating stage caused by manually adjusting a manual valve in the traditional steam distribution system is reduced, and the temperature can be strictly raised according to a set heating curve diagram.
Disclosure of Invention
The invention aims to solve the problems that steam pouring conflicts between the still kettles in the production of the existing steam distribution system and the building cost is high.
Therefore, the invention provides a steam distribution system of a still kettle, which comprises: the system comprises a main steam distribution cylinder, a plurality of heating cylinder distributors, a plurality of groups of reverse steam distribution cylinder groups, a plurality of exhaust cylinder distributors and a plurality of still kettles; the total steam distribution steam distributing cylinder is respectively connected with the plurality of heating steam distributing cylinders through a plurality of pipelines; each heating cylinder is respectively connected with a plurality of still kettles through a plurality of pipelines; each group of the steam reversing and distributing cylinders comprises two steam reversing and distributing cylinders which are connected through pipelines, and each steam reversing and distributing cylinder is respectively connected with a plurality of autoclaves through a plurality of pipelines; and the exhaust steam distributing cylinder is respectively connected with the plurality of still kettles through a plurality of pipelines.
Specifically, the steam distribution system of the still kettle further comprises a constant-temperature pressure-maintaining steam distributing cylinder; the constant-temperature pressure maintaining steam distributing cylinder is connected with the total steam distributing cylinder through a pipeline; the constant-temperature pressure-maintaining air distributing cylinder is respectively connected with the plurality of still kettles through a plurality of pipelines.
Specifically, the pipelines are all provided with valves.
Specifically, the connecting pipelines of the main steam distribution cylinder and the heating cylinder are provided with electric valves; an electric valve is arranged on a connecting pipeline between two reverse steam distribution cylinders in each reverse steam distribution cylinder group; and an electric valve is arranged on a connecting pipeline of the total steam distribution steam distributing cylinder and the constant-temperature pressure maintaining steam distributing cylinder.
Specifically, pressure gauges are arranged on the total steam distribution steam distributing cylinder, the heating steam distributing cylinder, the constant-temperature pressure maintaining steam distributing cylinder, the steam pouring steam distributing cylinder and the exhaust steam distributing cylinder.
Specifically, the total steam distribution steam distributing cylinder, the heating steam distributing cylinder, the constant-temperature pressure maintaining steam distributing cylinder, the steam pouring steam distributing cylinder and the exhaust steam distributing cylinder are all provided with safety valves.
Specifically, the main steam distribution cylinder is connected with the plurality of exhaust steam distribution cylinders through a plurality of pipelines.
Specifically, the exhaust steam distributing cylinder is provided with a residual steam utilizing interface, and the exhaust steam distributing cylinder is connected with an external residual steam utilizing device through the residual steam utilizing interface.
Specifically, the external residual steam utilization device comprises a static stop room heating device, a hot water pool heating device and a pre-autoclave marshalling curing kiln heating device.
The invention also provides a using method of the steam distribution system of the still kettle, which comprises the following steps:
(1) A temperature rise stage: feeding the steam curing vehicle loaded with the green body into the still kettle, closing the still kettle, opening the total steam distribution steam distributing cylinder, and introducing fresh steam into the still kettle through the temperature rising steam distributing cylinder to enable the temperature and the air pressure in the still kettle to reach preset values;
(2) And (3) a constant temperature and pressure maintaining stage: maintaining the temperature and the air pressure in the still kettle at preset values, and steaming the blank;
(3) And (3) a steam pouring stage: the two steam-reversing steam-distributing cylinders form a group of steam-reversing steam-distributing cylinder group to be matched with steam reversing, and steam in the still kettle which is subjected to the constant-temperature pressure-maintaining stage is poured into the other still kettle which is not heated by using the pressure difference through the group of steam-reversing steam-distributing cylinder group;
(4) And (3) an exhaust stage: and discharging residual steam in the autoclave after the constant-temperature pressure maintaining stage and the steam pouring stage through a steam discharging steam distributing cylinder, pulling out a blank in the autoclave, and finishing steam curing.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the steam distribution system of the still kettle provided by the invention adopts independent temperature-rise branch cylinders to distribute steam for different still kettles respectively and independently aiming at the temperature rise requirement of a plurality of still kettles, so that mutual interference is avoided; through the arrangement of the steam-reversing steam-distributing cylinder group, when steam is reversed, steam in one still kettle can be poured into the other still kettle by utilizing pressure difference only by opening one group of steam-reversing steam-distributing cylinders corresponding to the two still kettles, the steam-discharging steam-distributing cylinders do not need to be borrowed, and the steam-discharging work of the steam-discharging steam-distributing cylinders is not influenced. When the steam distribution system provided by the invention is adopted, only electric valves are needed to be arranged on the connecting pipeline of the total steam distribution cylinder and the heating cylinder, the connecting pipeline between two steam reversing cylinders in each steam reversing cylinder group and the connecting pipeline of the total steam distribution cylinder and the constant-temperature pressure-maintaining cylinder, the number of the electric valves is far less than that of the traditional steam distribution system, and the investment cost can be greatly reduced. In addition, the steam distribution system provided by the invention does not need to be vacuumized, adopts an evacuation method to drive off the air in the still kettle, does not need to add a vacuum pump, a related pipeline and the like, and has simple flow. The automatic adjustment can be realized in the temperature rise stage, the fluctuation of the temperature or the pressure in the temperature rise stage caused by manually adjusting a manual valve in the traditional steam distribution system is reduced, and the temperature rise can be strictly carried out according to a set temperature rise curve chart. Compared with the traditional steam distribution platform, the floor area of the steam distribution system platform is reduced by about 70 square meters, the site investment is reduced, and the construction cost is further saved.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a steam distribution system of an autoclave provided by the present invention.
FIG. 2 is a flow chart of the steam distribution system of the still kettle provided by the invention.
Reference numerals: 1. a still kettle; 2. a total steam distribution cylinder; 3. heating the steam distributing cylinder; 4. a reverse steam separation cylinder; 5. keeping the pressure of the steam distributing cylinder at constant temperature; 6. an exhaust steam distributing cylinder; 7. a manual valve; 8. an electrically operated valve; 9. a pressure gauge; 10. a safety valve; 11. a pipeline.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Although representative embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the embodiments, but should be defined by the appended claims and equivalents thereof. In the description of the present invention, the meaning of "a plurality" is at least one unless otherwise specified.
Referring to fig. 1-2, the present invention provides a steam distribution system for a still kettle, comprising: the system comprises a main steam distribution cylinder, a plurality of heating cylinder distributors, a plurality of groups of reverse steam distribution cylinder groups, a plurality of exhaust cylinder distributors and a plurality of still kettles; the main steam distribution cylinder is respectively connected with the plurality of heating steam distribution cylinders through a plurality of pipelines; each heating cylinder is respectively connected with a plurality of still kettles through a plurality of pipelines; each steam reversing and distributing cylinder group comprises two steam reversing and distributing cylinders which are connected through pipelines, and each steam reversing and distributing cylinder is respectively connected with a plurality of still kettles through a plurality of pipelines; and the exhaust steam distributing cylinder is respectively connected with the plurality of still kettles through a plurality of pipelines.
The invention also provides a using method of the steam distribution system of the still kettle, which comprises the following steps:
(1) A temperature rising stage: and (3) feeding the steam curing vehicle loaded with the green body into the still kettle, closing the still kettle, opening the main steam distribution steam distributing cylinder, and introducing fresh steam into the still kettle through the heating steam distributing cylinder to enable the temperature and the air pressure in the still kettle to reach preset values.
And in the temperature rising stage, whether a kettle bottom drainage system of the still kettle normally operates needs to be checked.
(2) And (3) a constant temperature and pressure maintaining stage: and maintaining the temperature and the air pressure in the still kettle at preset values, and steaming the blank.
(3) And (3) a steam pouring stage: after the blank in the still kettle is subjected to the heating and constant-pressure heat-preservation steaming stage, the chemical reaction is completed, the next stage is carried out, the steam in the still kettle needs to be discharged, and in order to avoid waste of the steam, the steam in the still kettle is generally poured into another still kettle needing heating so as to save the steam and energy. And the two steam-pouring steam-distributing cylinders are matched for steam pouring to find a steam-pouring steam-distributing cylinder pipeline corresponding to a still kettle which needs to receive steam and is corresponding to the steam-pouring steam-distributing cylinder group, and the steam in the still kettle which is subjected to the constant-temperature pressure maintaining stage is poured into another still kettle which is not heated by the pressure difference through the steam-pouring steam-distributing cylinder group to open a valve on a steam-pouring steam-distributing cylinder interface.
(4) And (3) an exhaust stage: and discharging residual steam in the autoclave after the constant-temperature pressure maintaining stage and the steam pouring stage through a steam discharging and distributing cylinder, pulling out a blank in the autoclave, and finishing steam curing.
After the temperature rise is finished, condensed water is discharged from the autoclave due to chemical reaction, and the temperature and the pressure in the autoclave slightly decrease. Therefore, the steam distribution system of the still kettle provided by the invention also comprises a constant-temperature pressure-maintaining steam distributing cylinder; the constant-temperature pressure-maintaining steam-distributing cylinder is connected with the main steam-distributing cylinder through a pipeline; the constant-temperature pressure-maintaining air distributing cylinder is respectively connected with the plurality of still kettles through a plurality of pipelines. Steam is supplemented into the still kettle in time through the constant-temperature pressure-maintaining steam distributing cylinder, so that the steam curing stage is maintained at the required steam pressure and temperature.
In order to facilitate control, valves are arranged on all pipelines in the system.
Furthermore, electric valves are arranged on connecting pipelines of the main steam distribution cylinder and the heating cylinder; an electric valve is arranged on a connecting pipeline between two inverted steam distributing cylinders in each inverted steam distributing cylinder group; and an electric valve is arranged on a connecting pipeline of the total steam distribution cylinder and the constant-pressure cylinder.
Because the pressure in the system is higher when the steam distribution system of the still kettle runs, pressure gauges are arranged on all the steam distributing cylinders for safety, and the pressure in the system is monitored. In addition, safety valves can be arranged on all the cylinders, and when the operating pressure exceeds the design pressure, the safety valves can remove the over-high pressure so as to ensure the safety of the cylinders.
The main steam distribution cylinder can be connected with a plurality of steam exhaust cylinders through a plurality of pipelines besides the heating cylinder. When the steam distribution system continuously operates, the temperature and the pressure in the still kettle reach preset values, and redundant steam can be directly discharged from the steam discharging and distributing cylinder.
The exhaust steam distributing cylinder is also provided with a residual steam utilizing interface and is connected with an external residual steam utilizing device through the residual steam utilizing interface, so that the heat of the residual steam is conveniently recycled in the subsequent stage, and the energy consumption of a factory is reduced. The number of the residual steam utilization interfaces is generally not less than three: one is sent to a static stop room for heating; one is sent to a hot water pool; a reserved interface.
The effect of the steam distribution system of the still kettle of the present invention is studied by the following specific examples.
Example 1:
as shown in fig. 1-2, this embodiment provides a steam distribution system for steam distribution cylinders of a still kettle, which includes 1 total steam distribution cylinder, 3 heating steam distribution cylinders, 1 constant-temperature pressure-maintaining steam distribution cylinder, 2 steam-pouring steam distribution cylinder groups, 2 exhaust steam distribution cylinders, and 11 still kettles; wherein:
the total steam distribution steam distributing cylinder is respectively connected with 3 heating steam distributing cylinders through 3 pipelines, and the 3 pipelines are provided with electric regulating valves;
the total steam distribution steam distributing cylinder is respectively connected with the two steam discharging steam distributing cylinders through 2 pipelines;
each of the 3 warming cylinder branches is an independent subsystem which independently takes steam from the main steam distribution cylinder branch, and each warming cylinder branch is respectively connected with 11 autoclaves through 11 pipelines;
each group of steam reversing and distributing cylinder group comprises 2 steam reversing and distributing cylinders which are connected through a pipeline, an electric regulating valve is arranged on the pipeline, and each steam reversing and distributing cylinder is respectively connected with 11 still kettles through 11 pipelines;
the constant-temperature pressure maintaining steam distributing cylinder is connected with the total steam distributing cylinder through a pipeline, an electric regulating valve is arranged on the pipeline, and the constant-temperature pressure maintaining steam distributing cylinder is respectively connected with 11 still kettles through 11 pipelines;
under the conventional condition, steam autoclaves exhausting steam in the same time period can not exceed 2, so that 2 steam exhausting and distributing cylinders can ensure that the steam exhausting of the autoclaves can not conflict, and for the convenience of management and operation, the autoclaves are divided into 2 groups, the steam exhausting of each group of autoclaves corresponds to 1 steam exhausting and distributing cylinder, namely 1 steam exhausting and distributing cylinder is respectively connected with 5 autoclaves through 5 pipelines, and the other 1 steam exhausting and distributing cylinder is respectively connected with the rest 6 autoclaves through 6 pipelines; each exhaust steam sub-cylinder is also provided with 3 residual steam utilization interfaces which are respectively connected with a heating room of a static stop room, a hot water pool and a reserved interface;
the branch cylinders are provided with pressure gauges and safety valves, all pipelines are provided with manual valves, and all electric valves are connected with an external control system and controlled by a computer.
The steam distribution system platform of the embodiment is divided into two layers, wherein the first layer occupies about 240 square meters, and the 2 nd layer occupies about 60 square meters. Compared with the traditional steam distribution platform, the floor area is reduced by about 70 square meters.
The steam distribution system of the steam distribution cylinder provided by the embodiment is used for distributing steam to the still kettle, and the method comprises the following specific steps:
(1) A temperature rising stage: after the aerated concrete blank is cut, the aerated concrete blank is stacked on a steam curing car, a still kettle door is opened, the steam curing car is sent into a still kettle by using a traction machine and other mechanisms, and the still kettle door is closed after the steam curing car is stopped. Opening a valve from an external steam pipeline to a main steam distribution cylinder to enable external steam to enter a steam distribution system, selecting a heating sub-cylinder matched with the still kettle, opening a manual valve on a pipeline between the main steam distribution cylinder and the heating sub-cylinder, enabling fresh steam to enter the heating sub-cylinder, opening a manual valve on a pipeline between the heating sub-cylinder and a main steam inlet of the still kettle, introducing the fresh steam into the still kettle, opening an electric regulating valve between the main steam distribution cylinder and the heating sub-cylinder at an operating point on a computer, regulating the temperature of the still kettle in a temperature-rising stage by adopting the electric regulating valve, and closing the electric regulating valve on a pipeline connecting the main steam distribution cylinder and the heating sub-cylinder after the temperature-rising stage is ended when the duration of the whole temperature-rising stage is 2-3 hours according to the blank amount in the still kettle.
And in the temperature rising stage, whether a kettle bottom drainage system of the still kettle normally operates needs to be checked.
(2) And (3) a constant temperature and pressure maintaining stage: when the autoclave has pressure drop or temperature reduction after the temperature rise is finished, opening a manual valve on a pipeline connected between the constant-temperature pressure maintaining cylinder and the main steam distribution cylinder, then opening an electric regulating valve on the pipeline connected between the constant-temperature pressure maintaining cylinder and the main steam distribution cylinder through a computer, supplementing fresh steam into the autoclave, and performing real-time regulation and control by using an electric valve in the whole constant-temperature pressure maintaining stage to ensure that the temperature and the pressure in the autoclave are maintained at preset values, so as to steam-cure the blank.
(3) A steam pouring stage: and two steam-pouring steam-distributing cylinders are combined to pour steam in a matching way, the opening of the still kettle which needs to receive steam is checked to be closed, and the sealing of the kettle opening is finished. Finding a steam reversing and distributing cylinder pipeline corresponding to the still kettle in the steam reversing and distributing cylinder group, opening a valve on the steam reversing and distributing cylinder pipeline, and pouring steam in the still kettle which is subjected to the constant-temperature pressure maintaining stage into the still kettle which is not heated by the steam reversing and distributing cylinder group through the steam reversing and distributing cylinder group by utilizing pressure difference. And when the steam pressures in the two still kettles reach balance, closing the manual valve in the corresponding steam reversing branch cylinder group, and ending the steam reversing stage.
The steam distribution system of the embodiment is provided with 2 groups of steam-reversing branch cylinder groups, 4 steam-reversing branch cylinders are matched in the steam-reversing stage, and if a large number of steam kettles are arranged in a factory, a third group of steam-reversing branch cylinder groups can be set in consideration of ensuring that the steam-reversing stages do not conflict with each other.
(4) An exhaust stage: after the steam is poured, residual steam still exists in the still kettle after the constant-temperature pressure maintaining stage and the steam pouring stage, and the kettle door can be opened only by discharging the residual steam. Under the normal condition, the number of the still kettles needing steam exhaust in the system is not more than 2, so that the embodiment is provided with 2 steam exhaust steam distribution cylinders, and the condition that the steam exhaust of the still kettles does not conflict can be ensured.
And opening a manual valve on a pipeline connecting the steam exhaust steam distribution cylinder and the still kettle, discharging residual steam in the still kettle, and enabling the residual steam to enter a heating and hot water pool of the static stop room and a reserved connector through a residual steam utilization connector of the steam exhaust steam distribution cylinder so as to recycle the heat of the residual steam.
The duration of the steam discharging stage is 1.5-2.0h, when the air pressure in the still kettle is reduced to be the same as the atmospheric pressure, the steam discharging is finished, a manual valve on a pipeline connected with a steam discharging branch cylinder connected with the still kettle is closed, the steam in a sealing ring of the still kettle is discharged together, and the sealing ring is automatically reset, so that the kettle door is convenient to open. And opening the kettle door, pulling out the blank in the kettle, finishing the whole steaming process of the still kettle, and analogizing the working flows of other still kettles in turn.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims.
Claims (10)
1. A still kettle steam distribution system is characterized by comprising: the system comprises a main steam distribution cylinder, a plurality of heating branch cylinders, a plurality of groups of reverse steam distribution cylinder groups, a plurality of steam discharge branch cylinders and a plurality of still kettles; the main steam distribution cylinder is respectively connected with the plurality of heating steam distribution cylinders through a plurality of pipelines; each heating cylinder is respectively connected with a plurality of still kettles through a plurality of pipelines; each group of the steam reversing and distributing cylinders comprises two steam reversing and distributing cylinders which are connected through pipelines, and each steam reversing and distributing cylinder is respectively connected with a plurality of autoclaves through a plurality of pipelines; and the steam exhaust steam distribution cylinder is respectively connected with the plurality of still kettles through a plurality of pipelines.
2. The autoclave steam distribution system according to claim 1, wherein: the device also comprises a constant-temperature pressure-maintaining cylinder; the constant-temperature pressure maintaining steam distributing cylinder is connected with the total steam distributing cylinder through a pipeline; and the constant-temperature pressure-maintaining air distributing cylinder is respectively connected with the plurality of still kettles through a plurality of pipelines.
3. The autoclave steam distribution system according to claim 2, wherein: and manual valves are arranged on the pipelines.
4. The autoclave steam distribution system according to claim 2, wherein: electric valves are arranged on connecting pipelines of the main steam distribution cylinder and the heating cylinder; an electric valve is arranged on a connecting pipeline between two reverse steam distribution cylinders in each reverse steam distribution cylinder group; and an electric valve is arranged on a connecting pipeline of the total steam distribution steam distributing cylinder and the constant-temperature pressure maintaining steam distributing cylinder.
5. The autoclave steam distribution system according to claim 2, wherein: pressure gauges are arranged on the total steam distribution cylinder, the heating steam distribution cylinder, the constant-temperature pressure-maintaining steam distribution cylinder, the steam pouring steam distribution cylinder and the steam exhaust steam distribution cylinder.
6. The autoclave steam distribution system according to claim 2, wherein: and safety valves are arranged on the total steam distribution steam distributing cylinder, the heating steam distributing cylinder, the constant-temperature pressure maintaining steam distributing cylinder, the steam pouring steam distributing cylinder and the steam exhaust steam distributing cylinder.
7. The autoclave steam distribution system according to claim 1, wherein: the main steam distribution cylinder is respectively connected with the plurality of steam exhaust steam distribution cylinders through a plurality of pipelines.
8. The autoclave steam distribution system according to claim 1, wherein: the exhaust steam distributing cylinder is provided with a residual steam utilizing interface and is connected with an external residual steam utilizing device through the residual steam utilizing interface.
9. The autoclave steam distribution system according to claim 8, wherein: the external residual steam utilization device comprises a static parking room for heating, a hot water pool and a grouping curing kiln in front of the still kettle for heating.
10. The method of using the autoclave steam distribution system according to claim 1, comprising the steps of:
(1) A temperature rising stage: feeding the steam curing vehicle loaded with the green body into the still kettle, closing the still kettle, opening the main steam distribution cylinder, and introducing fresh steam into the still kettle through the temperature rise steam distribution cylinder to enable the temperature and the air pressure in the still kettle to reach preset values;
(2) And (3) a constant temperature and pressure maintaining stage: maintaining the temperature and the air pressure in the still kettle at preset values, and steaming the blank;
(3) And (3) a steam pouring stage: two steam pouring and distributing cylinders are a group of steam pouring and distributing cylinders to be matched with steam pouring, and steam in the still kettle which is subjected to the constant-temperature pressure maintaining stage is poured into the other still kettle which is not heated by the pressure difference;
(4) And (3) steam discharging stage: and discharging residual steam in the autoclave after the constant-temperature pressure maintaining stage and the steam pouring stage through a steam discharging and distributing cylinder, pulling out a blank in the autoclave, and finishing steam curing.
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| CN202210539631.5A CN114833934B (en) | 2022-05-17 | 2022-05-17 | Steam distribution system of still kettle and use method thereof |
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