CN205740921U - Pressure relief device and the dreg removing system of gasification furnace for gasifier pressure vessel - Google Patents
Pressure relief device and the dreg removing system of gasification furnace for gasifier pressure vessel Download PDFInfo
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- CN205740921U CN205740921U CN201620447336.7U CN201620447336U CN205740921U CN 205740921 U CN205740921 U CN 205740921U CN 201620447336 U CN201620447336 U CN 201620447336U CN 205740921 U CN205740921 U CN 205740921U
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Abstract
The utility model discloses a kind of pressure relief device for gasifier pressure vessel and the dreg removing system of gasification furnace, described pressure relief device includes filter, relief valve and restriction orifice.One end of filter connects with gasifier pressure vessel to filter from gasifier pressure vessel expellant gas, and relief valve is connected to the other end of filter and is located at the upstream end of relief valve with the unlatching when gasifier pressure vessel carries out pressure release, restriction orifice.According to the pressure relief device for gasifier pressure vessel of the present utility model, expellant gas flow velocity in the duct and pressure when can reduce gasifier pressure vessel pressure release, such that it is able to reduce the solid particle carried in gas and gas to relief valve and the erosive wear of pipeline, reduce maintenance and change the operating cost that relief valve brings, it is possible to improving the stability that equipment runs.
Description
Technical field
This utility model relates to chemical field, especially relates to a kind of pressure relief device for gasifier pressure vessel and gasification furnace
Dreg removing system.
Background technology
In correlation technique, for pressing gas metallization processes, either coal particle put in gasification furnace or the remaining cinder of reaction and
The outer row of the flying dust of coal gas resulting separation, the pressure vessel all passing through centre realizes pressurization and pressure release, anti-to complete gasification furnace
The input of thing and the outer of waste material is answered to be drained through journey.And above-mentioned pressure vessel is when pressure release, owing in relief pipeline, the flow velocity of gas is relatively
Height, also can carry fraction solids granule in addition in gas, relief pipeline and relief valve can be formed bigger erosion effect, from
And the pressurize ability being likely to result in the worn out of relief tube and relief valve drastically declines, have a strong impact on the stable operation of equipment.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this practicality is new
Type proposes a kind of pressure relief device for gasifier pressure vessel, and this pressure relief device can reduce the gasifier pressure vessel mistake in pressure release
In journey, its expellant gas is to pipeline and the erosion of relief valve.
This utility model also proposed the dreg removing system of a kind of gasification furnace with above-mentioned pressure relief device.
According to the pressure relief device for gasifier pressure vessel of this utility model first aspect embodiment, including: filter, institute
The one end stating filter connects with described gasifier pressure vessel to filter from described gasifier pressure vessel expellant gas；
Relief valve, described relief valve is connected to the other end of described filter with the unlatching when described gasifier pressure vessel carries out pressure release；
Restriction orifice, described restriction orifice is located at the upstream end of described relief valve.
According to the pressure relief device for gasifier pressure vessel of this utility model embodiment, limit is set by the upstream at relief valve
Discharge orifice plate, expellant gas flow velocity in the duct and pressure when thus can reduce gasifier pressure vessel pressure release, such that it is able to
The solid particle carried in reduction gas and gas, to relief valve and the erosive wear of pipeline, reduces maintenance and changes relief valve
The operating cost brought, it is possible to improve the stability that equipment runs.
According to embodiments more of the present utility model, the described pressure relief device for gasifier pressure vessel also includes: bypass duct,
One end of described bypass duct is connected with described one end of described filter, the other end of described bypass duct and described filter
The described other end be connected；Control valve group, described control valve group is for controlling from the choosing of described gasifier pressure vessel expellant gas
Flow through to selecting property one in described filter and described bypass duct.
Further, described control valve group includes: the first on-off valve, and described first on-off valve is located at the institute of described bypass duct
State between one end and described filter；Second on-off valve, described second on-off valve is located on described bypass duct.
Further, the described pressure relief device for gasifier pressure vessel also includes that the 3rd on-off valve, described 3rd on-off valve set
Between the described other end and described filter of described bypass duct.
According to embodiments more of the present utility model, its thickness of slab direction and horizontal direction parallel when described restriction orifice is installed.
Alternatively, described restriction orifice is carbon-steel parts.
According to embodiments more of the present utility model, described restriction orifice be located at described gasifier pressure vessel and described filter it
Between.
The dreg removing system of the gasification furnace according to this utility model second aspect embodiment, including upper slag bucket, described upper slag bucket with
Described gasification furnace is connected to receive the lime-ash discharged from described gasification furnace；Lower slag bucket, described lower slag bucket is connected with described upper slag bucket
And described lower slag bucket is positioned at below described upper slag bucket, between described lower slag bucket and described upper slag bucket, it is provided with the 4th on-off valve；Buffering
Slag bucket, described buffering slag bucket is connected with described lower slag bucket and described buffering slag bucket is positioned at the lower section of described lower slag bucket, described buffering
It is provided with the 5th on-off valve between slag bucket and described lower slag bucket；According to this utility model above-mentioned first aspect embodiment be used for gasify
The pressure relief device of pressure vessel, described lower slag bucket is configured to described gasifier pressure vessel, described one end of described filter and institute
State the connection of lower slag bucket.
The dreg removing system of the gasification furnace according to this utility model embodiment, by arranging above-mentioned pressure relief device, lets out at lower slag bucket
During pressure, lower slag bucket expellant gas flow velocity in pressure relief device and pressure can be reduced, such that it is able to reduce gas
And the solid particle carried in gas is to relief valve and the erosive wear of pipeline, reduces maintenance and change the fortune that relief valve brings
Row cost, it is possible to improve the stability of gasifier operation.
Further, the dreg removing system of described gasification furnace also includes pressure charging valve, described pressure charging valve and described filter described separately
One end is connected with to described lower slag bucket supercharging.
According to embodiments more of the present utility model, the dreg removing system of described gasification furnace also includes balance pipe, described balance pipe
Two ends are connected with described upper slag bucket and described lower slag bucket respectively, and described balance pipe is provided with for balancing described upper slag bucket and described
The balanced valve of pressure between lower slag bucket.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the dreg removing system of the gasification furnace according to this utility model embodiment；
Fig. 2 is the schematic diagram of the restriction orifice of the pressure relief device according to this utility model embodiment.
Reference:
Dreg removing system 100,
Pressure relief device 1, restriction orifice 11, filter 12, relief valve 13, bypass duct 14, the first on-off valve 15, the
Two on-off valves 16, the 3rd on-off valve 17,
Upper slag bucket 2, the 4th on-off valve 21, balance pipe 22, balanced valve 23, lower slag bucket 3, the 5th on-off valve 31, buffer slag
Bucket 4, pressure charging valve 5.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to
The embodiment that accompanying drawing describes is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model, it is to be understood that term " length ", " width ", " thickness ", " on ", D score,
Orientation or the position relationship of the instruction such as "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are base
In orientation shown in the drawings or position relationship, be for only for ease of description this utility model and simplify describe rather than instruction or
Hint indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that
To restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed
Or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, example
Such as two, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can
Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.
For the ordinary skill in the art, concrete in this utility model of above-mentioned term can be understood as the case may be
Implication.
Below with reference to Fig. 1 and Fig. 2, the pressure relief device 1 for gasifier pressure vessel according to this utility model embodiment is described.
As depicted in figs. 1 and 2 the flow direction of gas, lime-ash (direction of arrow in Fig. 1 be), according to this utility model
On the one hand the pressure relief device 1 for gasifier pressure vessel of embodiment, including filter 12, relief valve 13 and restriction orifice
11。
Specifically, one end (with reference to the lower end of filter 12 in Fig. 1) of filter 12 connect with gasifier pressure vessel with
Filter from gasifier pressure vessel expellant gas.Relief valve 13 is connected to the other end of filter 12 (with reference to Fig. 1
The upper end of middle filter 12) with the unlatching when gasifier pressure vessel carries out pressure release, restriction orifice 11 is located at relief valve 13
Upstream end (" upstream " be relatively and during gasifier pressure vessel pressure release for the discharge directions of gasifier pressure vessel).Such as, limit
Discharge orifice plate 11 can be located between gasifier pressure vessel and filter 12, restriction orifice 11 can also be located at filter 12 with
Between relief valve 13.
When restriction orifice 11 is located between gasifier pressure vessel and filter 12, when gasifier pressure vessel pressure release, pressure release
Valve 13 is opened.Gasifier pressure vessel expellant gas first passes through restriction orifice 11, and restriction orifice 11 can reduce the stream of gas
Speed and pressure, thus can reduce the erosive wear for parts such as pipelines of the solid particle that carries in gas and gas.Gas
Body is after restriction orifice 11 reduction of speed blood pressure lowering, then filters through filter 12, to remove the fraction solids carried in gas
Grain (such as, in coal gasification technical process, generally has lime-ash, the gasifier pressure vessel when pressure release in gasifier pressure vessel
In part lime-ash can discharge together along with gas, therefore gas can carry solid particle).Filtered out by filter 12
The solid particle carried in gas, on the one hand can reduce the lime-ash finally entered in air, have environmental-protection function, the opposing party
The solid content in gas after the filtration of face substantially reduces, it is possible to reduce the erosion to parts such as pipeline, relief valves 13 is ground
Damage, simultaneously because gas passes through restriction orifice 11 reduction of speed blood pressure lowering, such that it is able to further reduce air-flow to pipeline, let out
The erosive wear of pressure valve 13 parts such as grade.Gas is after filter 12 filters out lime-ash, and gas is expelled to by relief valve 13
In air.
When restriction orifice 11 is located between filter 12 and relief valve 13, when gasifier pressure vessel pressure release, relief valve 13
Open.Gasifier pressure vessel expellant gas first passes through filter 12 and filters, to remove the fraction solids carried in gas
Granule.Filtered out the solid particle carried in gas by filter 12, on the one hand can reduce the ash finally entered in air
Slag, has an environmental-protection function, and the solid content in gas after on the other hand filtering substantially reduces, it is possible to reduce to pipeline,
The erosive wear of relief valve 13 parts such as grade.Gas, after filter 12 filters, passes through restriction orifice 11, restriction orifice 11
Flow velocity and the pressure of gas can be reduced, thus can reduce the solid particle carried in gas and gas for pipeline, let out
The erosive wear of pressure valve 13 parts such as grade.Gas, after restriction orifice 11 reduction of speed blood pressure lowering, is expelled in air by relief valve 13.
It is understood that gasifier pressure vessel expellant gas can be reduced at pressure relief device by the restriction orifice 11 arranged
Flowing velocity in 1 and pressure, such that it is able to reduce gas and the fraction solids granule that carries thereof for pipeline, relief valve 13
Erosive wear Deng parts, it is ensured that the pressurize ability of relief valve 13, it is to avoid relief valve 13 causes pressurize because of heavy wear
Ability drastically declines, and improves the service life of pressure relief device 1, reduces operating cost, and can improve the operation of equipment
Stability.
According to the pressure relief device 1 for gasifier pressure vessel of this utility model embodiment, by setting in the upstream of relief valve 13
Put restriction orifice 11, expellant gas flow velocity in the duct and pressure when thus can reduce gasifier pressure vessel pressure release, from
And the solid particle carried in gas and gas can be reduced to relief valve 13 and the erosive wear of pipeline, reduce maintenance and more
Change the operating cost that relief valve 13 brings, it is possible to improve the stability that equipment runs.
The pressure relief device for gasifier pressure vessel according to this utility model embodiment is described in detail referring to Fig. 1 and Fig. 2
1。
With reference to Fig. 1, pressure relief device 1 also includes bypass duct 14 and control valve group.One end of bypass duct 14 is (with reference to Fig. 1
The lower end of middle bypass duct 14) it is connected with above-mentioned one end of filter 12, the other end of bypass duct 14 is (with reference in Fig. 1
The upper end of bypass duct 14) it is connected with the above-mentioned other end of filter 12.Control valve group is for controlling from gasifier pressure vessel
Expellant gas selectively flows through in filter 12 and bypass duct 14.Restriction orifice 11 is located at vapor pressure to be held
Between device and filter 12, such as restriction orifice 11 can be located at gasifier pressure vessel and bypass duct 14 above-mentioned one end it
Between.Thus, restriction orifice 11 reduction of speed blood pressure lowering, then reselection ground can be first passed through from gasifier pressure vessel expellant gas
Flow through in filter 12 and bypass duct 14, such that it is able to preferably reduce gas and the solid particle that carries to pipe
The erosive wear of the parts such as road, relief valve 13.
It is understood that when pressure relief device 1 is in normal mode of operation, gasifier pressure vessel expellant gas flow through
Filter 12 filters.And filter 12 can occur the faults such as blocking during long-term use, or filter 12 arrives
The when of periodic inspection cleaning, filter 12 place branch road is equivalent to be in the state of blocking, and now gasifier pressure vessel is discharged
Gas flows through bypass duct 14, thus can ensure that the continuous operation of equipment.
Specifically, control valve group can include the first on-off valve 15 and the second on-off valve 16.First on-off valve 15 is located at side
Between above-mentioned one end and the filter 12 of road pipeline 14, the second on-off valve 16 is located on bypass duct 14.At pressure relief device
1 when being in normal mode of operation, and the first on-off valve 15 is opened and the second on-off valve 16 is closed, now gasifier pressure vessel row
The gas gone out first passes through restriction orifice 11 reduction of speed blood pressure lowering.Gas after restriction orifice 11 reduction of speed blood pressure lowering is carried out through filter 12
Filter, be expelled in air by relief valve 13 after gas filtration.Break down at filter 12 or need maintenance cleaning
Time, the first on-off valve 15 is closed and the second on-off valve 16 is opened, and now gasifier pressure vessel expellant gas first passes through current limliting
Orifice plate 11 reduction of speed blood pressure lowering.Gas after restriction orifice 11 reduction of speed blood pressure lowering flows through bypass duct 14, then by relief valve 13
It is expelled in air.
Further, pressure relief device 1 can also include that the 3rd on-off valve 17, the 3rd on-off valve 17 are located at bypass duct 14
Between the above-mentioned other end and filter 12.When filter 12 breaks down or needs maintenance cleaning, by arrange the
Three on-off valves 17 and make at the 3rd on-off valve 17 in off position, to be possible to prevent gasifier pressure vessel expellant gas to flow through side
After road pipeline 14, small portion of gas therein is in the above-mentioned other end inflow filter 12 of filter 12.Certainly, letting out
When pressure device 1 is in normal mode of operation, the 3rd on-off valve 17 is opened.
Alternatively, when restriction orifice 11 is installed, its thickness of slab direction can be with horizontal direction parallel.Such as, connect vapor pressure to hold
The pipeline of device and filter 12 can include horizontally disposed part and the part being vertically arranged, and restriction orifice 11 can be installed
In horizontally disposed pipeline.Thus, it is possible to improve the fluid erosion prevention effect of restriction orifice 11 further.
Alternatively, restriction orifice 11 is carbon-steel parts, and restriction orifice 11 can be single hole orifice plate or porous plate, restriction orifice 11
Can be one or more.The aperture of restriction orifice 11 and thickness can determine according to actual needs.
The dreg removing system 100 of the gasification furnace according to this utility model embodiment is described below with reference to Fig. 1.
As shown in Figure 1 the flow direction of gas, lime-ash (direction of arrow in Fig. 1 be), according to this utility model second aspect
The dreg removing system 100 of the gasification furnace of embodiment, including upper slag bucket 2, lower slag bucket 3, buffering slag bucket 4 and pressure relief device 1.
Specifically, upper slag bucket 2 is connected with gasification furnace (not shown) to receive the lime-ash discharged from gasification furnace, gasification furnace
The lime-ash of interior generation can be exhausted directly in slag bucket 2.Lower slag bucket 3 is connected with upper slag bucket 2 and lower slag bucket 3 is positioned at upper slag bucket
Below 2, between lower slag bucket 3 and upper slag bucket 2, it is provided with the 4th on-off valve 21.Thus, when the 4th on-off valve 21 is opened, on
Lime-ash in slag bucket 2 can drain into downwards in lower slag bucket 3.Buffering slag bucket 4 is connected with lower slag bucket 3 and buffers slag bucket 4 and is positioned at
The lower section of lower slag bucket 3, is provided with the 5th on-off valve 31, thus, at the 5th on-off valve 31 between buffering slag bucket 4 and lower slag bucket 3
When opening, the lime-ash in lower slag bucket 3 can drain into downwards in buffering slag bucket 4.In short, the dreg removing system 100 of gasification furnace
Tapping process be: the lime-ash produced in gasification furnace is first discharged in slag bucket 2, and the lime-ash in upper slag bucket 2 is then exhausted to slag
In bucket 3, the lime-ash in lower slag bucket 3 is finally expelled to buffer in slag bucket 4.Alternatively, the 4th on-off valve 21 and the 5th break-make
Valve 31 can be high-temperature ball valve.
Pressure relief device 1 is the pressure relief device 1 for gasifier pressure vessel according to this utility model above-mentioned first aspect embodiment,
Lower slag bucket 3 is configured to gasifier pressure vessel, and above-mentioned one end of filter 12 connects with lower slag bucket 3.When lower slag bucket 3 pressure release,
Lower slag bucket 3 carries out pressure release by the pressure relief device 1 of above-mentioned setting.Owing to having lime-ash in lower slag bucket 3, let out at lower slag bucket 3
During pressure, lower slag bucket 3 expellant gas can carry a part of lime-ash, by arranging above-mentioned pressure relief device 1, it is possible to reduce gas
The erosive wear to parts such as the pipeline of pressure relief device 1, relief valves 13 of body and the lime-ash that carries thereof, such that it is able to extend pressure release
In the service life of device 1, improve the stability of dreg removing system 100 work of gasification furnace.
The dreg removing system 100 of the gasification furnace according to this utility model embodiment, by arranging above-mentioned pressure relief device 1, in slag
Struggle against during 3 pressure releases, lower slag bucket 3 expellant gas flow velocity in pressure relief device 1 and pressure can be reduced, thus can
To reduce the solid particle carried in gas and gas to relief valve 13 and the erosive wear of pipeline, reduce maintenance and replacing is let out
The operating cost that pressure valve 13 is brought, it is possible to improve the stability of gasifier operation.
The dreg removing system 100 of the gasification furnace according to this utility model embodiment is described in detail referring to Fig. 1.
With reference to Fig. 1, dreg removing system 100 includes above-mentioned upper slag bucket 2, lower slag bucket 3, buffering slag bucket 4 and pressure relief device 1,
On the direction of deslagging, upper slag bucket 2, the lower slag bucket 3 flushing cinder bucket 4 that eases up is sequentially connected with.Wherein, upper slag bucket 2 and lower slag bucket 3
Between be provided with the 4th on-off valve 21, be provided with the 5th on-off valve 31 between lower slag bucket 3 and buffering slag bucket 4.Pressure relief device 1 includes
Restriction orifice the 11, first on-off valve 15 of being sequentially connected with along the flow direction of air-flow during pressure release, filter the 12, the 3rd break-make
Valve 17 and relief valve 13.Wherein, restriction orifice 11 is connected with lower slag bucket 3.Above-mentioned one end of bypass duct 14 is connected to
Between restriction orifice 11 and the first on-off valve 15, the above-mentioned other end of bypass duct 14 is connected to the 3rd on-off valve 17 and lets out
Between pressure valve 13.
Further, dreg removing system 100 also includes pressure charging valve 5, pressure charging valve 5 be connected with the above-mentioned other end of filter 12 with
Slag bucket 3 supercharging downwards.Specifically, one end of pressure charging valve 5 be connected to relief valve 13 and bypass duct 14 above-mentioned another
Between end, the other end of pressure charging valve 5 can be connected with high pressurized gas.
When dreg removing system 100 works, the lime-ash in gasification furnace is first directly discharged into the ash in supreme slag bucket 2, in upper slag bucket 2
Slag, before entering lower slag bucket 3, first to carry out supercharging to lower slag bucket 3.When lower slag bucket 3 is carried out supercharging, now supercharging
Valve 5 is opened, and relief valve 13 cuts out, and the 4th on-off valve 21 and the 5th on-off valve 31 are turned off.
If filter 12 normally works, now the first on-off valve 15 and the 3rd on-off valve 17 is opened, the second on-off valve 16 closes
Closing, lower slag bucket 3 is entered in flowing into lower slag bucket 3 after flowing through pressure charging valve 5, filter 12, restriction orifice 11 successively by gases at high pressure
Row supercharging.When pressure in lower slag bucket 3 increases to roughly equal with the pressure in upper slag bucket 2, pressure charging valve 5, first leads to
Disconnected valve 15 and the 3rd on-off valve 17 are turned off, and the 4th on-off valve 21 is opened, and the lime-ash in upper slag bucket 2 is expelled to lower slag bucket 3
In.After lime-ash in upper slag bucket 2 is drained, the 4th on-off valve 21 is closed.Now, lower slag bucket 3 to be carried out pressure release.
When lower slag bucket 3 is carried out pressure release, relief valve 13 is opened, and the first on-off valve 15 and the 3rd on-off valve 17 are all opened, slag
In bucket 3, expellant gas flows through restriction orifice 11, filter 12 and relief valve 13 successively, is finally expelled in air.?
During by pressure drop as little as normal pressure in lower slag bucket 3, relief valve the 13, first on-off valve 15 and the 3rd on-off valve 17 are turned off,
5th on-off valve 31 is opened, and the lime-ash in lower slag bucket 3 is expelled to buffer in slag bucket 4.
If filter 12 break down or need maintenance cleaning, now the first on-off valve 15 and the 3rd on-off valve 17 is closed,
Second on-off valve 16 is opened, and gases at high pressure flow into slag after flowing through pressure charging valve 5, bypass duct 14, restriction orifice 11 successively
In bucket 3, lower slag bucket 3 is carried out supercharging.When pressure in lower slag bucket 3 increases to roughly equal with the pressure in upper slag bucket 2,
Pressure charging valve the 5, second on-off valve 16 is turned off, and the 4th on-off valve 21 is opened, and the lime-ash in upper slag bucket 2 is expelled to lower slag bucket 3
In.After lime-ash in upper slag bucket 2 is drained, the 4th on-off valve 21 is closed.Now, lower slag bucket 3 to be carried out pressure release.
When lower slag bucket 3 is carried out pressure release, relief valve 13 is opened, and the second on-off valve 16 is opened, expellant gas in lower slag bucket 3
Flow through restriction orifice 11, bypass duct 14 and relief valve 13 successively, be finally expelled in air.By in lower slag bucket 3
During pressure drop as little as normal pressure, relief valve 13 and the second on-off valve 16 are turned off, and the 5th on-off valve 31 is opened, in lower slag bucket 3
Lime-ash be expelled to buffer in slag bucket 4.It should be noted that when lower slag bucket 3 carries out supercharging, the 3rd on-off valve 17 also may be used
Prevent a part of gases at high pressure by the above-mentioned other end inflow filter 12 of filter 12 to play.
Further, since dreg removing system 100 is provided with above-mentioned pressure relief device 1, the gas discharged when significantly reducing lower slag bucket 3 pressure release
Body and the solid particle that carries thereof are to pipeline and the erosive wear of relief valve 13, such that it is able to improve the pressurize energy of relief valve 13
Power, it is to avoid the lower slag bucket 3 caused because of the decline of relief valve 13 pressurize ability cannot be carried out supercharging or supercharging phenomenon not in place.
Also, it is understood that, if relief valve 13 occurs serious erosive wear, the pressure release of persistence causes lower slag bucket 3 to be discharged
Gas in steam condense in the pipeline of pressure relief device 1, the condensed water of partial coagulation can be back to the filter of filter 12
The filter element causing filter 12 on core blocks, and reduces the service life of filter 12.And by arranging above-mentioned pressure release
Device 1, can avoid the generation of above-mentioned phenomenon, such that it is able to improve the service life of filter 12, can improve row simultaneously
The reliability of slag system 100.
Alternatively, above-mentioned 4th on-off valve 21 and the 5th on-off valve 31 can be respectively set to multiple (such as, two).By
This can improve dreg removing system 100 reliability of operation.
Further, the dreg removing system 100 of gasification furnace can also include balance pipe 22, the two ends of balance pipe 22 respectively with upper slag
Bucket 2 is connected with lower slag bucket 3, and balance pipe 22 is provided with for balancing the balanced valve of pressure between upper slag bucket 2 and lower slag bucket 3
23.When lower slag bucket 3 is carried out supercharging, if after lower slag bucket 3 supercharging completes, the pressure in lower slag bucket 3 and upper slag bucket 2
In differing pressure relatively big and cause slag bucket 2 cannot downwards slag bucket 3 smooth deslagging time, now can open balanced valve 23,
Slag bucket 2 is made to connect with lower slag bucket 3, such that it is able to make the close balance of the pressure in slag bucket 2 and lower slag bucket 3, so that on
The smooth deslagging of the downward slag bucket of slag bucket 23.
Needing here to illustrate, the pressure relief device 1 of the application can be not only used for the dreg removing system of above-mentioned gasification furnace
100, it is also possible to enter coal measures system, dust removing system etc. for gasification furnace.Such as, coal is entered at pressure relief device 1 for gasification furnace
During system, the balance coal bunker entered in coal measures system of gasification furnace can be configured to above-mentioned gasifier pressure vessel.The most such as, letting out
Pressure device 1 is when the dust removing system of gasification furnace, and the lower flying dust tank in the dust removing system of gasification furnace can be configured to above-mentioned gas
Change pressure vessel.
With concrete example, the pressure relief device 1 for gasifier pressure vessel according to this utility model embodiment is said below
Bright.Being worth being understood by, following numerical value is exemplary illustration rather than to concrete restriction of the present utility model.
With reference to Fig. 1, in this example, pressure relief device 1 is in the dreg removing system 100 of gasification furnace.Pressure relief device 1 is made
The nominal diameter of pipeline be 150mm, thickness be 9mm, restriction orifice 11 is one and for single hole orifice plate, restriction orifice
The material of 11 is ordinary carbon steel Q235, and the thickness of restriction orifice 11 is 6mm.Now select the restriction orifice 11 points in three kinds of apertures
Not testing, the aperture of the restriction orifice 11 in three kinds of apertures is respectively 12.5mm, 20mm, 40mm.Above-mentioned restriction orifice
In the pressure relief device 1 of the dreg removing system 100 that the aperture of 11 is respectively suitable for three gasification furnaces, the result of the test obtained such as following table:
As seen from the above table, comparatively speaking, the aperture of restriction orifice 11 is 20mm to the restriction orifice 11 in above-mentioned three kinds of apertures
Time, the pressurize ability of relief valve 13 declines minimum, and pipe wear is less, and noise is the least, and therefore resultant effect is best.
In summary, pressure relief device 1 is selected suitable restriction orifice 11, can reduce lower slag bucket 3 expellant gas and
The solid particle carried is to relief valve 13 and the erosive wear of pipeline such that it is able to effectively extend the use longevity of relief valve 13
Life, it is to avoid the phenomenon that relief pipeline mill is logical, effectively reduces production run cost.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or
Feature is contained at least one embodiment of the present utility model or example.In this manual, schematic to above-mentioned term
Statement is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature
Can be so that one or more embodiments in office or example to combine in an appropriate manner.Additionally, in the case of the most conflicting,
Those skilled in the art can be by the different embodiments described in this specification or example and different embodiment or the spy of example
Levy and be combined and combine.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as restriction of the present utility model, those of ordinary skill in the art can in the range of this utility model
Above-described embodiment be changed, revise, to replace and modification.
Claims (10)
1. the pressure relief device for gasifier pressure vessel, it is characterised in that including:
Filter, one end of described filter connects with described gasifier pressure vessel with to discharging from described gasifier pressure vessel
Gas filters；
Relief valve, described relief valve is connected to the other end of described filter with when described gasifier pressure vessel is carried out pressure release
Open；
Restriction orifice, described restriction orifice is located at the upstream end of described relief valve.
Pressure relief device for gasifier pressure vessel the most according to claim 1, it is characterised in that also include:
Bypass duct, one end of described bypass duct is connected with described one end of described filter, another of described bypass duct
End is connected with the described other end of described filter；
Control valve group, described control valve group selectively flows through described for control from described gasifier pressure vessel expellant gas
In filter and described bypass duct one.
Pressure relief device for gasifier pressure vessel the most according to claim 2, it is characterised in that described control valve group
Including:
First on-off valve, described first on-off valve is located between described one end of described bypass duct and described filter；
Second on-off valve, described second on-off valve is located on described bypass duct.
Pressure relief device for gasifier pressure vessel the most according to claim 3, it is characterised in that also include threeway
Disconnected valve, described 3rd on-off valve is located between the described other end of described bypass duct and described filter.
Pressure relief device for gasifier pressure vessel the most according to claim 1, it is characterised in that described restriction orifice
Its thickness of slab direction and horizontal direction parallel during installation.
Pressure relief device for gasifier pressure vessel the most according to claim 1, it is characterised in that described restriction orifice
For carbon-steel parts.
7. according to the pressure relief device for gasifier pressure vessel according to any one of claim 1-6, it is characterised in that institute
State restriction orifice to be located between described gasifier pressure vessel and described filter.
8. the dreg removing system of a gasification furnace, it is characterised in that including:
Upper slag bucket, described upper slag bucket is connected with described gasification furnace to receive the lime-ash discharged from described gasification furnace；
Lower slag bucket, described lower slag bucket is connected with described upper slag bucket and described lower slag bucket is positioned at below described upper slag bucket, described slag
It is provided with the 4th on-off valve between bucket and described upper slag bucket；
Buffering slag bucket, described buffering slag bucket is connected with described lower slag bucket and described buffering slag bucket is positioned at the lower section of described lower slag bucket,
It is provided with the 5th on-off valve between described buffering slag bucket and described lower slag bucket；
According to the pressure relief device for gasifier pressure vessel according to any one of claim 1-7, described lower slag bucket is configured to
Described gasifier pressure vessel, described one end of described filter connects with described lower slag bucket.
The dreg removing system of gasification furnace the most according to claim 8, it is characterised in that also include pressure charging valve, described supercharging
Valve is connected with the described other end of described filter with to described lower slag bucket supercharging.
The dreg removing system of gasification furnace the most according to claim 9, it is characterised in that also include balance pipe is described flat
The two ends of weighing apparatus pipe are connected with described upper slag bucket and described lower slag bucket respectively, and described balance pipe is provided with for balancing described upper slag bucket
And the balanced valve of pressure between described lower slag bucket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620447336.7U CN205740921U (en) | 2016-05-17 | 2016-05-17 | Pressure relief device and the dreg removing system of gasification furnace for gasifier pressure vessel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620447336.7U CN205740921U (en) | 2016-05-17 | 2016-05-17 | Pressure relief device and the dreg removing system of gasification furnace for gasifier pressure vessel |
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| CN205740921U true CN205740921U (en) | 2016-11-30 |
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| CN201620447336.7U Active CN205740921U (en) | 2016-05-17 | 2016-05-17 | Pressure relief device and the dreg removing system of gasification furnace for gasifier pressure vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868158A (en) * | 2019-02-28 | 2019-06-11 | 北京三聚环保新材料股份有限公司 | A kind of ceramic membrane and its method of modifying, filter and filtration system |
-
2016
- 2016-05-17 CN CN201620447336.7U patent/CN205740921U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868158A (en) * | 2019-02-28 | 2019-06-11 | 北京三聚环保新材料股份有限公司 | A kind of ceramic membrane and its method of modifying, filter and filtration system |
| CN109868158B (en) * | 2019-02-28 | 2024-04-02 | 北京海新能源科技股份有限公司 | Ceramic membrane, modification method thereof, filter comprising ceramic membrane and filter system comprising ceramic membrane |
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