CN106902582A - Filter element is installed to rigid member on orifice plate and its filtration is applied - Google Patents
Filter element is installed to rigid member on orifice plate and its filtration is applied Download PDFInfo
- Publication number
- CN106902582A CN106902582A CN201710293237.7A CN201710293237A CN106902582A CN 106902582 A CN106902582 A CN 106902582A CN 201710293237 A CN201710293237 A CN 201710293237A CN 106902582 A CN106902582 A CN 106902582A
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- Prior art keywords
- filter element
- convex shoulder
- orifice plate
- rigid member
- filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/001—Means for connecting filter housings to supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2407—Filter candles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of rigid member for being installed to filter element on orifice plate and the filtration of the application rigid member, concentrated with the pretightning force between solving the problems, such as the convex shoulder that is previously mentioned in background technology and orifice plate.The filter element that the rigid member is applicable includes filter house and the connecting portion positioned at filter house end, and the connecting portion forms convex shoulder with respect to filter house, and the convex shoulder is provided with the net gas delivery outlet communicated with filter house inner chamber away from the end face of filter house；The rigid member includes the side round part for being used to be arranged on convex shoulder side and the side extension along convex shoulder, by the edge of side round part be bent to form for withholding on end face of the convex shoulder away from filter house or the end face near filter house so that uniform on the length range of the side of convex shoulder between convex shoulder and orifice plate compress so as to realize the kink in sealing contact, and for realizing the forced section that pretension is connected between the rigid member and orifice plate by preload piece.
Description
Technical field
The present invention relates to filtration art, in particular to the rigidity for being installed to filter element on orifice plate
Component and apply its filtration.
Background technology
No matter at industrial or civilian aspect, in order to obtain pure gas, made a return journey except the dust in gas by filtering
It is most basic method.In general, having plenty of the dust that can be settled in dust contained by gas, what is had then belongs to suspended particulate
Thing.Suspended particulate substance in gas refers to be suspended in gas the particle for not allowing free settling.The grain of the suspended particulate substance in air
Footpath is general≤and 100 microns；Wherein, the suspended particulate substance of particle diameter≤10 micron is also called PM10, and particle diameter≤2.5 micron are also called
PM2.5。
For the ease of the sedimentation of dust, existing dust removal by filtration equipment is typically positioned by the upper end to filter element
To fix filter element and the space of dust settling will be configured to allow for below filter element.For example, applicant of the present invention exists
Before turbine gas compressor provided in the patent application document (calling reference paper in the following text) of Publication No. CN103089714A
End deduster is to employ this conventional design.
In order to more really illustrate above-mentioned turbine gas compressor front end deduster, applicant is in conjunction with explanation of the invention
Book accompanying drawing 1 (actual design figure of the figure closer to above-mentioned turbine gas compressor front end deduster) is illustrated.Such as Fig. 1
Shown, the deduster includes filter element 100, orifice plate 210, Gas-cleaning box 300 and blowback system 600, wherein, Gas-cleaning box 300 is pacified
Mounted in the top of support 800, Gas-cleaning box is provided with exhaust outlet 310 and climbing frame 320；Filter element 100 is arranged on by orifice plate 210
The lower section of Gas-cleaning box 300 is so that filter element 100 passes through the net gas of filter element upper end with the inner chamber of both Gas-cleaning boxes 300
Delivery outlet connects to form net gas Transfer pipe, and the outside of filter element includes that lower section is open design in addition to the support；Blowback
System includes the gas bag 610, pulse valve 620 and the injection tube 630 that are sequentially connected, and wherein gas bag 610, pulse valve 620 is respectively positioned on only
The top of gas tank 300, injection tube 630 is close to orifice plate 210 in then extending to Gas-cleaning box 300 from top to bottom from the top of Gas-cleaning box 300
Extend along the direction parallel with orifice plate again after height, so that the corresponding filter element of injection mouthful alignment set in injection tube 630
Net gas delivery outlet on 100.
When above-mentioned deduster runs, in the presence of blower fan, Primordial Qi (gas i.e. to be filtered is herein air to be filtered) from
Open space is entered into around filter element 100, through filter element 100 after turn into net gas (filter after gas),
Net gas is finally discharged into Gas-cleaning box 300 from the inner chamber of filter element 100 from the exhaust outlet 310 of Gas-cleaning box 300 again, is crossed filtering element
What the dust that part 100 is retained had is gathered in the surface formation filter cake of filter element, the ground being deposited to below filter element having
On face, what is had is suspended in the space around filter element.When the dust for being gathered in filter element surface is thicker, can start anti-
Blow system 600 carries out reverse gas cleaning to filter element.Additionally, the maintenance of gas bag 610, pulse valve 620 can rise by from climbing frame
Operated to Gas-cleaning box top.
As mentioned above, the turbine gas compressor front end deduster is entered by the upper end to filter element
Row positions to fix filter element and will be configured to allow for the space of dust settling below filter element.In fact, of the invention
Dust removal by filtration equipment using similar principles known for inventor also all adopts in such a way to set filter element substantially.One
As for, adopt and filter element not what obvious problem be set in this way, meanwhile, this mode is to be conducive to
The sedimentation of dust, therefore, it is not yet found that the careful thinking of people and proposing the problems of this mode.
However, the present inventor but notices problems with and phenomenon：(1) because filter element is located at Gas-cleaning box
Lower section, in order to reserve the accommodation space of filter element, Gas-cleaning box must be by support (or by the outer of dust removal by filtration equipment
The structures such as shell) supported, and Gas-cleaning box is often, and volume is larger in dust removal by filtration equipment, heavier-weight part, therefore, must
Support strength structure higher must be designed to support Gas-cleaning box.(2) found in the on probation middle of the deduster, it is considerably long running
After time, more sedimentation dust is had no on the ground of filter element lower section and surrounding, the dust master retained by filter element
In being attached on filter element or being suspended in air after blowback.(3) thickness of the dust being attached on filter element is present
Obvious skewness phenomenon, i.e., the dust thickness on filter element is gradually thickening from top to bottom.Determine it after analysis
Reason is：It is affected by gravity, dust (mainly suspended particulate substance) concentration in Primordial Qi is typically gradually to increase from top to bottom
, cause the dust of filter element lower contact more, the dust of overlying contact is less；Further, since net gas delivery outlet is located at
The upper end of filter element, during blowback from net gas delivery outlet enter filter element inner chamber in blowback air-flow pressure from top to bottom by
Degradation subtracts, therefore, blowback effect of the blowback effect better than lower section above filter element.Above-mentioned two factor is superimposed, that is, make
Dust thickness into filter element is gradually thickening from top to bottom.
On the other hand, the turbine gas compressor front end deduster of reference paper also uses a kind of mistake of special design
Filtering element.It can be seen from reference paper, the filter element is included by filtering that at least two chimney filters being set up in parallel are constituted
Portion and the upper connecting portion (the first termination connector 402 i.e. in reference paper) positioned at filter house upper end and under filter house
The lower connecting portion (the second termination connector 403 i.e. in reference paper) at end, each chimney filter upper end is connected as one by upper connecting portion
Body, each chimney filter lower end are connected as one by lower connecting portion, are provided with the upper surface of upper connecting portion and are led with each chimney filter inner chamber
Logical net gas delivery outlet (the passage 402a i.e. in reference paper).The installation of filter element for convenience is positioned, above-mentioned upper company
Socket part substantially forms a convex shoulder (referring to reference paper accompanying drawing 2 to 4) with respect to filter house, and the convex shoulder is by its close filter house
End face is contacted with pore plate by sealing and (annular sealing strip 402b is provided with the end face of filter house with reality in convex shoulder in reference paper
Now this is in sealing contact), filter element is fixed on hole finally by the pressing plate (pressing plate 9 i.e. in reference paper accompanying drawing) above convex shoulder
On plate.
In the reference paper, because the convex shoulder is arranged on orifice plate top, need to be by filter element during installation filter element
From top to bottom through the through hole on orifice plate, the installation for not only resulting in filter element so is more inconvenient, simultaneously as on orifice plate
The bore size of through hole allows for ensureing that the filter house and lower connecting portion of filter element can be passed through, and then requires on orifice plate
The bore size of through hole is larger, orifice plate that is using thickness thicker to ensure the intensity of orifice plate to be also accomplished by.Based on such problem,
In description of the invention accompanying drawing 1, it is improved to for the convex shoulder of filter element to pass through its end face and pore plate by sealing away from filter house
, so, only from the bottom up need to be arranged on orifice plate filter element when installing filter element by contact.Specific mounting means
It is to be directly anchored on orifice plate the two ends of convex shoulder by threaded fastener respectively.However, no matter using the pressure in reference paper
Threaded fastener in plate or description of the invention accompanying drawing 1, cannot solve a problem, i.e., all the time：Between convex shoulder and orifice plate
Pretightning force concentrate on the local location of convex shoulder, the sealing between filter element and orifice plate can be influenceed in the course of time.
The content of the invention
First purpose of the invention is to provide a kind of device of the filtering suspended particles thing from gas, with solve how
The problem of the thickness distribution non-uniform phenomenon of the dust being effectively improved on the filter element being previously mentioned in background technology.
Second object of the present invention be provide a kind of rigid member for being installed to filter element on orifice plate and
Using the filtration of the rigid member, concentrated with the pretightning force between solving the convex shoulder that is previously mentioned in background technology and orifice plate
Problem.
In order to realize above-mentioned first purpose, one side according to embodiments of the present invention, now there is provided one kind from gas
The device of middle filtering suspended particles thing, the device includes filter element, positioner, Gas-cleaning box and blowback system, the filtering
Element is arranged on Gas-cleaning box by positioner so that filter element passes through filter element with the inner chamber of both Gas-cleaning boxes
The net gas delivery outlet of end connects to form net gas Transfer pipe, and the blowback system is connected with Gas-cleaning box, the net gas delivery outlet
The bottom of filter element is arranged on positioned at the lower end of filter element and the Gas-cleaning box.
Further, the positioner is included for constituting the orifice plate covered on Gas-cleaning box, the lower end of the filter element
Be arranged on the orifice plate by attachment structure, the net gas delivery outlet of the filter element by the through hole that is arranged on orifice plate with it is net
Gas tank inner chamber turns on.
Further, the filter element includes the filter house being made up of at least two chimney filters being set up in parallel and is located at
The upper connecting portion of filter house upper end and the lower connecting portion positioned at filter house lower end, each chimney filter upper end are connected as one by upper connecting portion
Body, each chimney filter lower end are connected as one by lower connecting portion, are set on the lower surface of lower connecting portion and are turned on each chimney filter inner chamber
Net gas delivery outlet, the filter element by act on lower connecting portion attachment structure be arranged on orifice plate on.
Further, the lower surface of the lower connecting portion is provided with the annular sealing strip for surrounding each net gas delivery outlet；When
The filter element is arranged on when on orifice plate by acting on the attachment structure of lower connecting portion, and the annular sealing strip is pressed in down
Between the lower surface of connecting portion and orifice plate.
Further, the lower connecting portion forms convex shoulder, the convex shoulder from the depth direction of filter house with respect to filter house
With side；Then, the attachment structure includes preload piece and rigid member, wherein, the rigid member is included for being arranged on
Convex shoulder side and along the side round part that extends of side of convex shoulder, is close to for withholding by what the edge of side round part was bent to form in convex shoulder
On the end face of filter house so that between convex shoulder and orifice plate on the length range of the side of convex shoulder the uniform kink for compressing, with
And for realizing the forced section that pretension is connected between the rigid member and orifice plate by preload piece.
Further, the rigid member is the C-shaped section bar in a cross section, and the section bar is respectively used to set including two
The kink in the side round part of the convex shoulder both sides and between being connected to the two side round part is put, the kink is provided with confession
The through hole that filter house is passed through.
Further, the device of filtering suspended particles thing includes filter element described at least two from gas；Also, should
Rigid member is a section bar for U-shaped profile, and the section bar is respectively used to be arranged on the convex of adjacent filter elements including two
Side round part, two kinks being bent to form by the edge of the two side round part respectively between shoulder and it is connected to the two sides
Enclose the transition part between portion.
Further, the upper connecting portion is constituted by as the sealing plate for each chimney filter blind end.
Further, the chimney filter includes the interior tube layer being made up of high density porous polyethylene supporter and is attached to institute
The external tube layer stated on internal layer tube outer surface and be made up of expanded PTFE filtration membrane.
Further, the Gas-cleaning box doubles as being the base for playing supporting role the positioner and filter element.
Further, be provided with the support frame on the Gas-cleaning box above the Gas-cleaning box, support frame as described above with
Auxiliary positioning connector is provided between filter element.
Further, the case on the Gas-cleaning box is provided with above the Gas-cleaning box, the filter element holds
It is contained in case, case is provided with air intake structure.
Further, the device of filtering suspended particles thing also includes blowback system from gas；The blowback system includes
Gas bag, pulse valve and the injection tube being sequentially connected, the gas bag and pulse valve are arranged on the lateral surface of Gas-cleaning box, the injection
Pipe is stretched into from the lateral surface of Gas-cleaning box and acted in Gas-cleaning box corresponding net gas delivery outlet.
Further, the device of filtering suspended particles thing includes at least two filter elements from gas；The then net gas
It is provided with the lateral surface of case along the extended gas bag in Gas-cleaning box periphery, multiple is provided with above the gas bag along the gas bag
The length direction pulse valve that is spaced and is connected with the gas bag respectively, each pulse valve correspondence is connected with perpendicular to Gas-cleaning box side
The injection tube of wall, each injection tube acts on corresponding filter element, be provided with each injection tube with it is net in respective filter elements
The corresponding injection mouthful of gas delivery outlet.
In order to realize above-mentioned second purpose, one side according to embodiments of the present invention, now there is provided one kind for inciting somebody to action
Filter element is installed to the rigid member on orifice plate, and the filter element that the rigid member is applicable includes filter house and positioned at filtering
The connecting portion of portion end, the connecting portion forms convex shoulder with respect to filter house, and the convex shoulder is provided with and mistake away from the end face of filter house
The net gas delivery outlet that filter portion inner chamber communicates, and the convex shoulder passes through it away from the end face of filter house or by its close filter house
End face is contacted with pore plate by sealing, and the convex shoulder also has side from the depth direction of filter house；The rigid member includes being used for
Be arranged on convex shoulder side and along convex shoulder side extend side round part, by the edge of side round part be bent to form for withholding convex
So that in the length of the side of convex shoulder between convex shoulder and orifice plate on end face of the shoulder away from filter house or the end face near filter house
It is uniform in scope to compress so as to realize the kink in sealing contact, and for by preload piece in the rigid member and hole
The forced section of pretension connection is realized between plate.
Further, the filter element that the rigid member is applicable is for convex shoulder is contacted away from the end face of filter house with pore plate by sealing
Filter element；Then, the rigid member is the C-shaped section bar in a cross section, and the section bar includes：Two are respectively used to be arranged on
The side round part of the convex shoulder both sides and the kink being connected between the two side round part, the kink are provided with for filtering
The through hole that portion passes through.
Further, the kink forms forced section outside extending to filter house along the side long of convex shoulder.
Further, the filter element that the rigid member is applicable is for convex shoulder is contacted away from the end face of filter house with pore plate by sealing
Filter element；Then, the rigid member is a section bar for U-shaped profile, and the section bar includes：Two are respectively used to be arranged on
Side round part between the convex shoulder of adjacent filter elements, two kinks being bent to form by the edge of the two side round part respectively with
And it is connected to the transition part between the two side round part.
Further, it is for realizing being close in advance between rigid member and orifice plate by preload piece that the transition part is doubled as
The forced section for connecing.
A kind of other side according to embodiments of the present invention, there is provided filtration of the above-mentioned rigid member of application, should
Filtration includes filter element and orifice plate, also including with the filter element rigid member that be connected of adaptation and will be described firm
Property component forced section and orifice plate between realize pretension connection preload piece.
Further, the preload piece uses threaded fastener.
Further, using handle type holding device, the handle type holding device includes support base, passes described preload piece
Motivation structure, top-fastening rod and handle, the support base are mounted on filter element side and the support structure being fixedly installed with orifice plate
On part, transmission mechanism is connected installed in support base and respectively with top-fastening rod and handle, can make when operation handle makes top-fastening rod move forward
The head of top-fastening rod compresses forced section so that realizing that pretension is connected between the rigid member and orifice plate, when operation handle makes top
Moved after tight bar can make the head of top-fastening rod and part of the force from.
The device of the above-mentioned filtering suspended particles thing from gas provided according to the present invention, because net gas delivery outlet was located at
The lower end of filtering element and the Gas-cleaning box are arranged on the bottom of filter element, therefore the device has following beneficial effect：It is first
First, the characteristics of gradually increase from top to bottom for the dust concentration being affected by gravity in Primordial Qi, enter from net gas delivery outlet during blowback
The pressure for entering the blowback air-flow in filter element inner chamber will gradually decay from the bottom up, i.e., on the depth direction of filter element,
The pressure of the bigger position blowback air-flow of dust concentration is also corresponding bigger in Primordial Qi, therefore, it can improve device in long-term use
The thickness distribution non-uniform phenomenon of the dust on filter element afterwards.Secondly, Gas-cleaning box, positioner, filter element and
In the structure that blowback system is constituted, the center of gravity of the structure is reduced because volume is big, heavier-weight Gas-cleaning box is underlying, had
Help optimize the supporting construction of whole device, improve stability during plant running.Although additionally, underlying Gas-cleaning box seems
Sedimentation as hampering dust, but in fact (also permit certainly because the present apparatus is mainly the filtering suspended particles thing from gas
Perhaps a certain amount of particle for settling is contained), therefore can't produce because a large amount of dust is deposited in Gas-cleaning box top so as to influence
The situation that device is used.
The above-mentioned rigid member for filter element being installed on orifice plate that is there is provided according to the present invention and apply the rigidity
The filtration of component, based on the innovative design to the rigid member, with following beneficial effect：Due to side round part and gusset
The kink entirety that the edge in portion is bent to form has rigidity higher on the depth direction of filter element, when kink is withheld
Can make uniformly to be compressed on the length range of the side of convex shoulder between convex shoulder and orifice plate on the corresponding end face of convex shoulder, prevent convex
Pretightning force between shoulder and orifice plate is excessively concentrated, so as to preferably ensure that the sealing effectiveness between convex shoulder and orifice plate.
The present invention is described further with reference to the accompanying drawings and examples.The additional aspect of the present invention and advantage will be
Following description middle part is given out, partly will become apparent from the description below, or is recognized by practice of the invention.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the signal of the turbine gas compressor front end deduster in the reference paper provided in background technology
Figure.
Fig. 2 is the schematic diagram of the device of filtering suspended particles thing from gas according to the embodiment of the present invention.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the schematic diagram according to filter element in the embodiment of the present invention.
Fig. 5 is the upward view of Fig. 4.
Fig. 6 is the schematic diagram of the filtration of the application rigid member according to the embodiment of the present invention.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the schematic diagram of the filtration of the application rigid member according to the embodiment of the present invention.
Fig. 9 is the schematic diagram of the rigid member according to the embodiment of the present invention.
Figure 10 is the schematic diagram of the rigid member according to the embodiment of the present invention.
It need to be pointed out that：
Dotted line in Fig. 1,2 is represented to the cutting scope of the in-built broken section of display device.
Dotted line in Fig. 3,9 and 9 then represents and the part beyond dotted line is omitted.
Specific embodiment
It should be noted that in the case where not conflicting, embodiment and feature therein in the application can be mutual
Combination.Let us now refer to the figures and combine herein below and describe the present invention in detail.
In order that those skilled in the art are better understood from the present invention program, below in conjunction with the embodiment of the present invention in it is attached
Figure, carries out clear, complete description, it is clear that described embodiment is only to the technical scheme in embodiment of the present invention embodiment
Only it is the embodiment of a branch of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained on the premise of creative work is not made, should all belong to protection of the present invention
Scope.
The embodiment of the invention provides a kind of device of the filtering suspended particles thing from gas.Fig. 2 is according to of the invention real
Apply the schematic diagram of the device of filtering suspended particles thing from gas of example.
As shown in Fig. 2 the device includes filter element 100, positioner 200, Gas-cleaning box 300 and blowback system 600, its
In, the filter element 100 is arranged on Gas-cleaning box 300 by positioner 200, and the filter element 100 is that end is provided with
The filter element of net gas delivery outlet, when the filter element 100 is arranged on Gas-cleaning box 300 by positioner 200, crosses filtering element
Part 100 will connect to form net gas transmission with the inner chamber of both Gas-cleaning boxes 300 by the net gas delivery outlet of the end of filter element 100
Passage, the blowback system 600 is connected with Gas-cleaning box 300, and the Gas-cleaning box 300 is arranged on the bottom of filter element 100.Due to
Gas-cleaning box 300 is arranged on the bottom of filter element 100, therefore, the described net gas delivery outlet of filter element 100 is also located at accordingly
The lower end of filter element 100.
When said apparatus run, in the presence of blower fan, Primordial Qi is entered into around filter element 100, passes through filtering element
Turn into net gas after part 100, it is last in the Gas-cleaning box 300 that net gas enters below filter element 100 from the inner chamber of filter element 100 again
Discharged from the exhaust outlet (referring to the exhaust outlet 310 shown in Fig. 3) of Gas-cleaning box 300.When the powder for being gathered in the surface of filter element 100
When dirt is thicker, can start blowback system 600 carries out reverse gas cleaning to filter element 100.
The conventional techniques that reverse gas cleaning is dust removal by filtration equipment are carried out to filter element 100 using blowback system 600.
During blowback, blowback air-flow enters in the inner chamber of filter element 100 from the net gas delivery outlet of filter element 100, then acts on filtering
The dust on the surface of element 100, so as to dust be peeled off from filter element 100, so as to recover filter element to a certain extent
100 permeability.
According to said apparatus, because net gas delivery outlet is located at the lower end of filter element 100 and the Gas-cleaning box 300 is arranged on
The bottom of filter element 100, therefore：First, gradually increase from top to bottom for the dust concentration in Primordial Qi under the influence of gravity
The characteristics of, the pressure of the blowback air-flow entered in the inner chamber of filter element 100 from net gas delivery outlet during blowback is also from the bottom up gradually
Decay, i.e., on the depth direction of filter element 100, the pressure of the bigger position blowback air-flow of dust concentration is also corresponding in Primordial Qi
It is bigger, therefore, it can improve the thickness distribution non-uniform phenomenon of device dust after long-term use on filter element 100.
It is pointed out that " depth direction of filter element " mentioned in the present invention, refers to the net gas delivery outlet place of filter element
One end and the direction where the relative other end (i.e. the blind end of filter element).
Secondly, in the device master that Gas-cleaning box 300, positioner 200, filter element 100 and blowback system 600 are constituted
In body structure, because volume is big, the heavier-weight center of gravity that is underlying and reducing the agent structure of Gas-cleaning box 300, contribute to excellent
Change the supporting construction of whole device, improve stability during plant running.
Although additionally, underlying Gas-cleaning box 300 seems to hamper the sedimentation of dust, in fact due to the present apparatus
The filtering suspended particles thing mainly from gas, thus can't produce because a large amount of dust be deposited in the top of Gas-cleaning box 300 so as to
Influence the situation of plant running；In addition, the blowback air-flow outwards sprayed from the inner chamber of filter element 100 during blowback can also break up
The dust on the top of Gas-cleaning box 300 is deposited in, prevents dust from being piled up on the top of Gas-cleaning box 300.
In general, the positioner 200 is included for constituting the orifice plate 210 covered on Gas-cleaning box 300, it is described to cross filtering element
The lower end of part 100 is arranged on by attachment structure (embodiment on the attachment structure will be illustrated with reference to accompanying drawing 6 to 10)
On the orifice plate 210, the net gas delivery outlet of the filter element 100 is by the through hole that is arranged on orifice plate 210 and Gas-cleaning box 300
Chamber turns on.
Orifice plate 210 is the conventional techniques for installing filter element 100, and filter element is installed by orifice plate 210
100 are not only simple in structure, it is also possible to easily multiple filter elements 100 are installed on same orifice plate 210 to increase device
Filter area.But, orifice plate 210 is not that uniquely the lower end of filter element 100 can be installed into net gas in the embodiment of the present invention
Case 300 simultaneously makes the technological means of the inner chamber of filter element 100 and the inner chamber conducting of Gas-cleaning box 300.Using other technological means, such as
By by the lower end of filter element 100 with the joint that Gas-cleaning box 300 is connected install filter element 100 be also feasible mode it
One.
Because the volume of Gas-cleaning box 300 is larger and heavier-weight, therefore, it is to the positioning that the Gas-cleaning box 300 can also be doubled as
The base that device 200 and filter element 100 play supporting role, at this moment, the bottom of Gas-cleaning box 300 can no longer set to prop up
The supporting construction of the Gas-cleaning box 300 is supportted, so as to Gas-cleaning box 300 is directly placed on ground.
As shown in Fig. 2 according to one embodiment of present invention, the device of filtering suspended particles thing is by net gas from gas
Case 300 is placed on a support 800 being above the ground level.This is primarily due to, and the device of the embodiment is in Fig. 1 shown device bases
Product after being improved on plinth, therefore exhaust outlet 310 of Gas-cleaning box 300 of two table apparatus etc. is necessary to ensure that in the design process
Height, to avoid the modification pair the pipeline being connected with exhaust outlet 310.
By the contrast of Fig. 1 and Fig. 2, when Fig. 2 shown devices and the exhaust outlet of the Gas-cleaning box 300 of Fig. 1 shown devices
310 etc. it is high when, due to embodiments of the invention be by filter element 100 be arranged on Gas-cleaning box 300 top and Fig. 1 shown devices
It is the lower section that filter element 100 is arranged on Gas-cleaning box 300, therefore, the installation of the filter element 100 in the embodiment of the present invention is high
Degree is by apparently higher than the setting height(from bottom) of filter element 100 in Fig. 1 shown devices.It is noted above, it is under the influence of gravity, former
Dust concentration in gas gradually increases from top to bottom, and words sentence is talked about, setting height(from bottom) its contact higher of filter element 100
Dust concentration in Primordial Qi will be lower.Therefore, filter element 100 will be less than by the pollution of dust in Primordial Qi in the embodiment of the present invention
Fig. 1 shown devices.
According to one embodiment of present invention, on the basis of the technical scheme of above-mentioned any one possible embodiment,
The top of the Gas-cleaning box 300 is also provided with the support frame 400 on the Gas-cleaning box 300, support frame as described above 400 and mistake
Auxiliary positioning connector 230 is provided between filtering element 100.Thus, can be positioned by auxiliary positioning connector 230, be improved
The stability of filter element 100.
The structure of auxiliary positioning connector 230 can be compared free design, in general, as long as being arranged on support
Filter element 100 can be carried out spacing on certain orientation on frame 400, belong to the category of auxiliary positioning connector 230.
According to one embodiment of present invention, on the basis of the technical scheme of above-mentioned any one possible embodiment,
The case 500 on the Gas-cleaning box 300 also is provided with the top of the Gas-cleaning box 300, the filter element 100 is accommodated
In case 500, case 500 is provided with air intake structure 510 (referring to the air intake structure 510 shown in Fig. 3).
The Main Function of case 500 is that filter element 100 is protected.When the present apparatus is used as the sky for being placed on outdoor
During gas dust removal by filtration equipment, case 500 can avoid rainwater and the directly contact of filter element 100.
On the basis of the technical scheme of above-mentioned any one possible embodiment, as the preferred reality of blowback system 600
Mode is applied, the blowback system 600 includes the gas bag 610, pulse valve 620 and the injection tube 630 that are sequentially connected, the gas bag 610
It is arranged on the lateral surface of Gas-cleaning box 300 with pulse valve 620, the injection tube 630 stretches into net gas from the lateral surface of Gas-cleaning box 300
Corresponding net gas delivery outlet is acted in case 300.
Because gas bag 610 and pulse valve 620 are directly installed on the lateral surface of Gas-cleaning box 300, injection tube 630 is from Gas-cleaning box
300 lateral surface stretches into and corresponding net gas delivery outlet is acted in Gas-cleaning box 300, therefore, blowback air-flow passes through from pulse valve 620
The distance that injection tube 630 flows through corresponding net gas delivery outlet 131 is shorter, it is not necessary to by this elder generation in such as Fig. 1 from Gas-cleaning box
To in Gas-cleaning box 300, deflecting is flowed along the direction parallel with orifice plate again after the height of orifice plate 210 from top to bottom for 300 tops
Turnover process, therefore the pressure loss of blowback air-flow is smaller；Further, since blowback system 600 is placed in the side of Gas-cleaning box 300
Face, therefore the maintenance to blowback system 600 can also be easy to.
With reference to Fig. 3 in detail the embodiment of the present invention is described in detail.
Fig. 3 is the left view of Fig. 2.From Fig. 3 can be clearly seen that Gas-cleaning box 300 and Gas-cleaning box 300 exhaust outlet 310,
Air intake structure 510 on case 500 and case 500, and it is arranged on the blowback system 600 of the side of Gas-cleaning box 300.
Wherein, the air intake structure 510 is designed for grid-like opening, so as to by the space in case 500 with it is outer
Boundary's air conducting.The air intake structure 510 is that the device based on correspondence embodiment is as the air filtering dust-removing for being placed on outdoor
Equipment and design.Different application of the invention, the air intake structure 510 can also modify accordingly.
When at least two filter elements 100 is provided with the embodiment of the present invention, then the blowback system 600 is preferred
Structure is：Be provided with the lateral surface of Gas-cleaning box 300 along the extended gas bag 610 in the periphery of Gas-cleaning box 300, gas bag 610 it is upper
Side is provided with the pulse valve 620 that multiple length directions along the gas bag 610 are spaced and are connected with the gas bag 610 respectively, respectively
The correspondence of pulse valve 620 is connected with the injection tube 630 perpendicular to the side wall of Gas-cleaning box 300, and each injection tube 630 acts on corresponding filtering
Element 100, is provided with the injection mouthful corresponding with the net gas delivery outlet 131 in respective filter elements 100 in each injection tube 630.
With reference to Fig. 4 to 5 in detail the embodiment of the present invention is described in detail.
Fig. 4 is the schematic diagram according to filter element in the embodiment of the present invention.Fig. 5 is the upward view of Fig. 4.Such as Figure 4 and 5 institute
Show, the filter element 100 includes the filter house 110 being made up of at least two chimney filters 111 being set up in parallel and positioned at filtering
The upper connecting portion 120 of the upper end of portion 110 and the lower connecting portion 130 positioned at the lower end of filter house 110, the upper end of each chimney filter 111 pass through upper company
Socket part 120 is connected as one, the lower end of each chimney filter 111 is connected as one by lower connecting portion 130, in the lower end of lower connecting portion 130
The net gas delivery outlet 131 turned on the inner chamber of each chimney filter 111 is set on face, and the filter element 100 is by acting on lower connecting portion
130 attachment structure 220 is arranged on orifice plate 210.
Preferably, the upper connecting portion 120 is constituted by as the sealing plate for the blind end of each chimney filter 111.
Preferably, the chimney filter 111 includes the interior tube layer and the attachment that are made up of high density porous polyethylene supporter 111
The external tube layer constituted on the internal layer tube outer surface and by expanded PTFE filtration membrane 112.
On above-mentioned filter element 100, its construction is the patent of invention Shen of CN103089714A with China Patent Publication No.
Please file (i.e. in background technology provide reference paper) it is similar, the content that can be combined in the reference paper is understood.
It is with the filter element institute difference in reference paper：Filter element 100 is under in the embodiment of the present invention
The lower surface of connecting portion 130 is provided with the annular sealing strip 132 for surrounding each net gas delivery outlet 131；When the filter element 100
It is arranged on when on orifice plate 210 by the attachment structure 220 for acting on lower connecting portion 130, the annular sealing strip 132 is pressed in down
Between the lower surface of connecting portion 130 and orifice plate 210.And in reference paper, it is leaning in lower connecting portion 130 that annular sealing strip is set
On the end face of nearly filter house 110.
Based on above-mentioned difference, when being attached on orifice plate 210, it descends connecting portion to filter element 100 in the embodiment of the present invention
130 without pass through orifice plate 210, therefore, the installation difficulty of filter element 100 is reduced and can reduce the perforate face of orifice plate 210
Product.
As shown in Figures 4 and 5, the lower connecting portion 130 forms a convex shoulder 700 with respect to filter house 110, from filter house 110
Depth direction on see the convex shoulder 700 have side 710.Described convex shoulder 700 is conveniently installed equivalent to step so as to serve
The effect of positioning.
In Fig. 2 to 3, the lower end of filter element 100 is particularly as being company by being arranged between convex shoulder 700 and orifice plate 210
Binding structure is arranged on orifice plate 210, and described attachment structure is used for convex shoulder 700 and hole to be separately positioned on the two ends of convex shoulder 700
The threaded fastener of the connection of plate 210.Although this compare convex shoulder 700 with orifice plate 210 by way of threaded fastener is connected
Simply, the pretightning force but between convex shoulder 700 and orifice plate 210 is excessively concentrated, and then can be influenceed between convex shoulder 700 and orifice plate 210
Sealing effectiveness.
With reference to Fig. 6 to 10 in detail the embodiment of the present invention is described in detail.
In order to solve the problems, such as that the pretightning force between convex shoulder 700 and orifice plate 210 is excessively concentrated, implementation of the invention
Example, there is provided the attachment structure with rigid member 222.
Fig. 6 is the schematic diagram of the filtration of the application rigid member according to the embodiment of the present invention.Fig. 7 is the left view of Fig. 6
Figure.Fig. 9 is the schematic diagram of rigid member shown in Fig. 6.As shown in Fig. 6,7 and 9, the attachment structure 220 includes preload piece 221
With rigid member 222, wherein, the rigid member 222 is included for being arranged on the side of convex shoulder 700 and along the side of convex shoulder 700
The 710 side round part 222a for extending, by the edge of side round part 222a be bent to form for withholding in convex shoulder 700 near filter house
So that uniform on the length range of the side 710 of convex shoulder 700 between convex shoulder 700 and orifice plate 210 compress on 110 end face
Kink 222b, and for realizing receiving for pretension connection between the rigid member 222 and orifice plate 210 by preload piece 221
Power portion 222c.
Specifically, the rigid member 222 is the C-shaped section bar in a cross section, the section bar is respectively used to including two
The kink 222b for being arranged on the side round part 222a of the both sides of the convex shoulder 700 and being connected between the two side round part 222a,
The kink 222b is provided with the through hole 222e passed through for filter house 110.Be can be clearly seen that from Fig. 6 and Fig. 9, this is firm
The cross section of property component 222 is C-shaped.Above-mentioned rigid member 222 can be formed by by the steel plate of high rigidity by bending process.
As can be seen that the kink 222b extends to filter house 110 along the side 710 of convex shoulder 700 from Fig. 7 and Fig. 9
Outside form forced section 222c.And with orifice plate 210 can be in advance close to forced section 222c using threaded fastener by preload piece 221
Connect.
Due to needing repeatedly to be tightened when preload piece 221 is using threaded fastener, more inconvenience in operation, therefore also may be used
Using the handle type holding device for being easy to operation.As shown in Figures 6 and 7, handle type holding device includes support base 221a, driver
Structure 221b, top-fastening rod 221c and handle 221d, the support base 221a are mounted on filter element side and consolidate with orifice plate 210
On the fixed supporting member 410 for setting, transmission mechanism 221b be arranged on support base 221a and respectively with top-fastening rod 221c and handle
221d connect, when operation handle 221d make top-fastening rod 221c move forward can make top-fastening rod 221c head compress forced section 222c so as to
Make to realize that pretension is connected between the rigid member 222 and orifice plate 210, being moved after operation handle 221d makes top-fastening rod 221c to make
The head of top-fastening rod 221c is separated with forced section 222c.The supporting member 410 can be fixed on above-mentioned installed in the Gas-cleaning box 300
On support frame 400 on.
Fig. 8 is the schematic diagram of the filtration of the application rigid member according to the embodiment of the present invention.Figure 10 is shown in Fig. 8
The schematic diagram of rigid member.As shown in figures 8 and 10, the rigid member is a section bar for U-shaped profile, and the section bar includes two
The individual side round part 222a for being respectively used to be arranged between the convex shoulder 700 of adjacent filter elements 100, two respectively by the two gussets
Kink 222b that the edge of portion 222a the is bent to form and transition part 222d being connected between the two side round part 222a.It is excellent
Choosing, the transition part 222d doubles as being for realizing that pretension is connected between rigid member and orifice plate 210 by preload piece 221
Forced section 222c；The preload piece 221 can use threaded fastener, can also use above-mentioned handle type holding device.
Claims (8)
1. filter element is installed to the rigid member on orifice plate, its applicable filter element includes filter house (110) and is located at
The connecting portion of filter house end, the connecting portion forms convex shoulder (700) with respect to filter house, and the convex shoulder (700) is away from filter house
(110) end face is provided with the net gas delivery outlet (131) communicated with filter house (110) inner chamber, and the convex shoulder (700) is by it
End face or in sealing contact with orifice plate (210) by the end face of its close filter house (110) away from filter house (110), from filtering
See that the convex shoulder (700) also has side (710) on the depth direction in portion (110), it is characterised in that：The rigid member includes being used for
The side round part (222a) of convex shoulder (700) side and side (710) extension along convex shoulder (700) is arranged on, by side round part (222a)
Edge be bent to form for withhold convex shoulder (700) away from the end face of filter house (110) or near filter house (110) end
So that uniformly being compressed on the length range of the side (710) of convex shoulder (700) between convex shoulder (700) and orifice plate (210) on face
So as to realize the kink (222b) in sealing contact, and for by preload piece (221) in the rigid member and orifice plate
(210) forced section (222c) of pretension connection is realized between.
2. rigid member as claimed in claim 1, it is characterised in that：Its applicable filter element is convex shoulder (700) away from mistake
The end face in filter portion (110) and orifice plate (210) filter element in sealing contact；Then, the rigid member is that a cross section is C-shaped
Section bar, the section bar includes：Two are respectively used to be arranged on the side round part (222a) of the convex shoulder (700) both sides and are connected to this
Kink (222b) between two side round part (222a), the kink (222b) is provided with what is passed through for filter house (110)
Through hole.
3. rigid member as claimed in claim 2, it is characterised in that：The kink (222b) along convex shoulder (700) side
(710) formation forced section (222c) outside filter house (110) is extended to.
4. rigid member as claimed in claim 1, it is characterised in that：Its applicable filter element is convex shoulder (700) away from mistake
The end face in filter portion (110) and orifice plate (210) filter element in sealing contact；Then, the rigid member is a U-shaped profile
Section bar, the section bar includes：Two side round part for being respectively used to be arranged between the convex shoulder of adjacent filter elements (100) (700)
(222a), two kinks (222b) being bent to form by the edge of the two side round part (222a) respectively and be connected to this two
Transition part (222d) between individual side round part (222a).
5. rigid member as claimed in claim 4, it is characterised in that：It is for by pretension that the transition part (222d) doubles as
Part (221) realizes the forced section (222c) that pretension is connected between rigid member and orifice plate (210).
6. the filtration of the rigid member in application claim 1 to 5 described in any one claim, including filter element
And orifice plate (210) (100), it is characterised in that：Also include the rigid member (222) being connected with filter element (100) adaptation
And the preload piece that pretension is connected will be realized between the forced section (222c) of the rigid member (222) and orifice plate (210)
(221)。
7. filtration as claimed in claim 6, it is characterised in that：The preload piece (221) uses threaded fastener.
8. filtration as claimed in claim 6, it is characterised in that：Described preload piece (221) holds out against dress using handle type
Put, the handle type holding device includes support base (221a), transmission mechanism (221b), top-fastening rod (221c) and handle (221d),
The support base (221a) is mounted on filter element side and the supporting member (410) that is fixedly installed with orifice plate (210),
Transmission mechanism (221b) is connected installed in support base (221a) and respectively with top-fastening rod (221c) and handle (221d), works as manipulator
Handle (221d) makes top-fastening rod (221c) move forward can make the head of top-fastening rod (221c) compress forced section (222c) so that described firm
Realize that pretension is connected between property component (222) and orifice plate (210), being moved after operation handle (221d) makes top-fastening rod (221c) to make
The head of top-fastening rod (221c) is separated with forced section (222c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293237.7A CN106902582B (en) | 2017-04-28 | 2017-04-28 | Rigid member for mounting filter element to orifice plate and filter structure using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293237.7A CN106902582B (en) | 2017-04-28 | 2017-04-28 | Rigid member for mounting filter element to orifice plate and filter structure using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106902582A true CN106902582A (en) | 2017-06-30 |
| CN106902582B CN106902582B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293237.7A Active CN106902582B (en) | 2017-04-28 | 2017-04-28 | Rigid member for mounting filter element to orifice plate and filter structure using same |
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| WO1995007129A1 (en) * | 1993-09-06 | 1995-03-16 | Hamon Industrie Thermique | Device for sealingly holding, positioning and linking the front end of a filter bag, for bag filters |
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| Publication number | Publication date |
|---|---|
| CN106902582B (en) | 2023-05-05 |
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