CN206934935U - Filter element is installed to rigid member on orifice plate and applies its filtration - Google Patents

Abstract

It is used to filter element being installed to the rigid member on orifice plate and the filtration using the rigid member the utility model discloses a kind of, to solve the problems, such as the concentration of the pretightning force between the convex shoulder being 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 end face of the convex shoulder away from filter house is provided with the net gas delivery outlet communicated with filter house inner chamber；The rigid member includes being used for the side round part for being arranged on convex shoulder side and along the side of convex shoulder extending, it is used to withhold on the end face in end face of the convex shoulder away from filter house or close to filter house so that uniformly being compressed so as to realize the kink in sealing contact, and for realizing the forced section of pretension connection between the rigid member and orifice plate by preload piece on the length range of the side of convex shoulder between convex shoulder and orifice plate by what the edge of side round part was bent to form.

Description

Filter element is installed to rigid member on orifice plate and applies its filtration

Technical field

Filtration art is the utility model is related to, in particular to for filter element to be installed on orifice plate Rigid member and apply its filtration.

Background technology

No matter at industrial or civilian aspect, in order to obtain pure gas, made a return journey by filtering except the dust in gas It is most basic method.In general, having plenty of the dust that can be settled in dust contained by gas, some then belongs to suspended particulate Thing.Suspended particulate substance in gas refers to be suspended in the particle that free settling is not allowed in gas.The grain of suspended particulate substance in air Footpath is general≤and 100 microns；Wherein, the suspended particulate substance of particle diameter≤10 micron is also known as PM10, and particle diameter≤2.5 micron are also known as PM2.5。

For the ease of the sedimentation of dust, existing dust removal by filtration equipment to the upper end of filter element typically by positioning To fix filter element and the space of dust settling will be configured to allow for below filter element.For example, application of the present utility model Turbine type gas compression of the people provided in Publication No. CN103089714A patent application document (calling reference paper in the following text) Machine front end deduster employs this conventional design.

In order to more really illustrate above-mentioned turbine gas compressor front end deduster, in conjunction with the utility model specification Accompanying drawing 1 (actual design figure of the figure closer to above-mentioned turbine gas compressor front end deduster) illustrates.Such as Fig. 1 institutes Showing, the deduster includes filter element 100, orifice plate 210, Gas-cleaning box 300 and blowback system 600, wherein, Gas-cleaning box 300 is installed 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 net by orifice plate 210 The lower section of gas tank 300 is so that the inner chamber of filter element 100 and both Gas-cleaning boxes 300 is defeated by the net gas of filter element upper end Outlet forms net gas Transfer pipe, and the outside of filter element is open design in addition to the support including lower section；Blowback system System includes gas bag 610, pulse valve 620 and the injection tube 630 being sequentially connected, and wherein gas bag 610, pulse valve 620 is respectively positioned on net gas The top of case 300, injection tube 630 then extend in Gas-cleaning box 300 close to the height of orifice plate 210 from top to bottom from the top of Gas-cleaning box 300 Extend again along the direction parallel with orifice plate after degree, so that the injection mouth set in injection tube 630 is directed at corresponding filter element 100 On net gas delivery outlet.

During the operation of above-mentioned deduster, in the presence of blower fan, Primordial Qi (gas i.e. to be filtered, being herein air to be filtered) from Open space is entered around filter element 100, through filter element 100 after turn into net gas (filter after gas), Net gas is finally discharged from the inner chamber of filter element 100 into Gas-cleaning box 300 from the exhaust outlet 310 of Gas-cleaning box 300 again, is crossed filtering element The surface that the dust some that part 100 is retained is gathered in filter element forms filter cake, and some is deposited to the ground below filter element On face, some 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 and reverse gas cleaning is carried out to filter element.In addition, the maintenance of gas bag 610, pulse valve 620 can be by rising from climbing frame Operated at the top of to Gas-cleaning box.

As mentioned above, the turbine gas compressor front end deduster is by entering to the upper end of filter element Row is positioned to fix filter element and the space of dust settling will be configured to allow for below filter element.In fact, this practicality is new The dust removal by filtration equipment using similar principles known to the utility model people of type is also all adopted in such a way to set substantially Filtering element.In general, filter element is set not have the problem of what is obvious in this way, meanwhile, this mode is In order to be advantageous 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, utility model people of the present utility model but notices problems with and phenomenon：(1) because filter element is located at The lower section of Gas-cleaning box, in order to reserve the accommodation space of filter element, Gas-cleaning box (or must pass through dust removal by filtration by support The structures such as the shell of equipment) supported, and Gas-cleaning box is often that volume is larger in dust removal by filtration equipment, portion of heavier-weight Part, therefore, it is necessary to design the higher structure of support strength to support Gas-cleaning box.(2) in the middle discovery on probation of the deduster, transporting After row considerable time, more sedimentation dust is had no below filter element and on the ground of surrounding, is cut by filter element The dust stayed is mainly attached on filter element or is suspended in after blowback in air.(3) dust being attached on filter element Thickness obvious skewness phenomenon be present, i.e., the dust thickness on filter element from top to bottom gradually it is thickening.Through undue Determine that its reason is after analysis：Be affected by gravity, dust in Primordial Qi (mainly suspended particulate substance) concentration be typically on toward Gradually increase down, 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, the pressure of the blowback air-flow entered from net gas delivery outlet in filter element inner chamber during blowback Gradually decay from top to bottom, therefore, the blowback effect above filter element are better than the blowback effect of lower section.Above-mentioned two factor phase Superposition, that is, cause the dust thickness of filter element 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 specially designed Filtering element.It can be seen from reference paper, the filter element includes by filtering that at least two chimney filters being set up in parallel are formed Portion and 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).Positioned in order to facilitate the installation of filter element, 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 it close to filter house End face contacts with pore plate by sealing (is provided with annular sealing strip 402b with reality in reference paper on end face of the convex shoulder close to filter house 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.

, need to be by filter element when filter element is installed because the convex shoulder is arranged on above orifice plate in the reference paper From top to bottom through the through hole on orifice plate, it is more inconvenient not only result in the installation of filter element so, simultaneously as on orifice plate The bore size of through hole allows for ensureing that the filter house of filter element and lower connecting portion can pass through, and then requires on orifice plate The bore size of through hole is larger, is the intensity for ensuring orifice plate also just needs to use the thicker orifice plate of thickness.Based on it is such the problem of, In the utility model Figure of description 1, it is improved to the convex shoulder of filter element passing through its end face and orifice plate away from filter house It is in sealing contact, so, filter element need to be only arranged on when filter element is installed on orifice plate from the bottom up.Specific installation Mode is to be directly anchored at the both ends of convex shoulder on orifice plate by threaded fastener respectively.However, no matter use in reference paper Pressing plate or the utility model Figure of description 1 in threaded fastener, can not solve a problem all the time, i.e.,：Convex shoulder with Pretightning force between orifice plate is concentrated on the local location of convex shoulder, can be influenceed in the course of time close between filter element and orifice plate Feng Xing.

Utility model content

First purpose of the present utility model is in providing a kind of device of the filtering suspended particles thing from gas, to solve The problem of thickness distribution non-uniform phenomenon for the dust how being effectively improved on the filter element being previously mentioned in background technology.

Second purpose of the present utility model is to provide a kind of rigid structure for being used to be installed to filter element on orifice plate The filtration of part and the application rigid member, to solve the pretightning force collection between the convex shoulder being previously mentioned in background technology and orifice plate The problem of middle.

In order to realize above-mentioned first purpose, according to the one side of the utility model embodiment, now provide it is a kind of from The device of filtering suspended particles thing in gas, the device includes filter element, positioner, Gas-cleaning box and blowback system, described Filter element is arranged on by positioner on Gas-cleaning box so that the inner chamber of filter element and both Gas-cleaning boxes passes through filtering The net gas delivery outlet of element ends is connected to form net gas Transfer pipe, and the blowback system is connected with Gas-cleaning box, and the net gas is defeated Outlet is arranged on the bottom of filter element positioned at the lower end of filter element and the Gas-cleaning box.

Further, the positioner includes being used to form the orifice plate covered on Gas-cleaning box, the lower end of the filter element Be arranged on by attachment structure on the orifice plate, 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 by filter house that at least two chimney filters being set up in parallel form 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 When the filter element is arranged on orifice plate by acting on the attachment structure of lower connecting portion, 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 includes being used to be arranged on Convex shoulder side and the side round part extended along the side of convex shoulder, it is bent to form by the edge of side round part close in convex shoulder for withholding So that the kink uniformly compressed on the length range of the side of convex shoulder between convex shoulder and orifice plate on the end face of filter house, with And for the forced section of pretension connection to be realized 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 side round part in the convex shoulder both sides and the kink that is connected between the two side round part are put, the kink, which is provided with, to be supplied The through hole that filter house passes through.

Further, the device of filtering suspended particles thing includes at least two filter elements from gas；Also, should Rigid member is the section bar of a 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 respectively by the edge of the two side round part between shoulder and it is connected to the two sides Enclose the transition part between portion.

Further, the upper connecting portion as the sealing plate for each chimney filter blind end by forming.

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 base that the Gas-cleaning box doubles as playing supporting role to 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 Gas-cleaning box from the lateral surface of Gas-cleaning box acts on 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 The gas bag being extended along Gas-cleaning box periphery is installed on the lateral surface of case, is provided with above the gas bag multiple along the gas bag The length direction pulse valve that is spaced and is connected respectively with the gas bag, each pulse valve is correspondingly connected with perpendicular to Gas-cleaning box side The injection tube of wall, each injection tube act on corresponding filter element, be provided with each injection tube with it is net in respective filter elements The corresponding injection mouth of gas delivery outlet.

In order to realize above-mentioned second purpose, according to the one side of the utility model embodiment, a kind of use is now provided In the rigid member being installed to filter element on orifice plate, the filter element that the rigid member is applicable includes filter house and is located at The connecting portion of filter house end, the connecting portion form convex shoulder with respect to filter house, and end face of the convex shoulder away from filter house is provided with The net gas delivery outlet communicated with filter house inner chamber, and the convex shoulder by its end face away from filter house or passes through it close to filtering The end face in portion contacts with pore plate by sealing, and the convex shoulder also has side from the depth direction of filter house；The rigid member includes For the side round part for being arranged on convex shoulder side and along the side of convex shoulder extending, it is used to withhold by what the edge of side round part was bent to form So that in the side of convex shoulder between convex shoulder and orifice plate on end face of the convex shoulder away from filter house or the end face of close filter house Uniformly compressed on length range so as to realize the kink in sealing contact, and for by preload piece in the rigid member The forced section that pretension is connected is realized between orifice plate.

Further, the applicable filter element of the rigid member contacts for end face of the convex shoulder away from 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, long side of the kink along convex shoulder, which extends to, forms forced section outside filter house.

Further, the applicable filter element of the rigid member contacts for end face of the convex shoulder away from filter house with pore plate by sealing Filter element；Then, the rigid member is the section bar of a 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 respectively by the edge of the two side round part with And it is connected to the transition part between the two side round part.

Further, the transition part is doubled as to be close in advance for being realized by preload piece between rigid member and orifice plate The forced section connect.

According to the other side of the utility model embodiment, there is provided a kind of filtering knot using above-mentioned rigid member Structure, the filtration include filter element and orifice plate, in addition to the rigid member connected is adapted to filter element and is incited somebody to action The preload piece of pretension connection is realized between the forced section and orifice plate of the rigid member.

Further, the preload piece uses threaded fastener.

Further, described preload piece uses handle type holding device, and the handle type holding device includes support base, passed 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 arranged on support base and is connected respectively with top-fastening rod and handle, when operation handle makes top-fastening rod reach to make The head of top-fastening rod compresses forced section so that realizing that pretension connects 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.

According to the device of the above-mentioned filtering suspended particles thing from gas provided by the utility model, due to net gas delivery outlet position The bottom of filter element is arranged in the lower end of filter element and the Gas-cleaning box, therefore the device has following beneficial effect Fruit：First, the characteristics of gradually increasing from top to bottom for the dust concentration being affected by gravity in Primordial Qi, exported from net gas during blowback The pressure for the blowback air-flow that mouth enters in filter element inner chamber will gradually decay from the bottom up, i.e. the depth direction in filter element On, the pressure of the bigger position blowback air-flow of dust concentration is also corresponding bigger in Primordial Qi, and therefore, can improve device makes for a long time The thickness distribution non-uniform phenomenon of dust after on filter element.Secondly, Gas-cleaning box, positioner, filter element with And in the structure that is formed of blowback system, the center of gravity of the structure is reduced because volume is big, heavier-weight Gas-cleaning box is underlying, Contribute to the supporting construction of optimization whole device, improve stability during plant running.In addition, although underlying Gas-cleaning box has been seen Come the sedimentation as hampering dust, but in fact due to the present apparatus, filtering suspended particles thing is (certainly mainly from gas Allow containing a certain amount of particle settled), therefore can't produce because a large amount of dust is deposited in Gas-cleaning box top so as to shadow Ring the situation that device uses.

It is somebody's turn to do according to the above-mentioned rigid member and application for being used to filter element being installed on orifice plate provided by the utility model The filtration of rigid member, based on the innovative design to the rigid member, there is following beneficial effect：Due to side round part with The kink that the edge of side round part is bent to form integrally has higher rigidity on the depth direction of filter element, works as kink Withholding can make uniformly to compress 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 Only the pretightning force between convex shoulder and orifice plate is excessively concentrated, so as to preferably ensure that the sealing effectiveness between convex shoulder and orifice plate.

The utility model is described further with reference to the accompanying drawings and examples.The additional aspect of the utility model and Advantage will be set forth in part in the description, and partly will become apparent from the description below, or by of the present utility model Practice is recognized.

Brief description of the drawings

Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model. In accompanying drawing：

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 utility model embodiment.

Fig. 3 is Fig. 2 left view.

Fig. 4 is the schematic diagram according to filter element in the utility model embodiment.

Fig. 5 is Fig. 4 upward view.

Fig. 6 is the schematic diagram according to the filtration using rigid member of the utility model embodiment.

Fig. 7 is Fig. 6 left view.

Fig. 8 is the schematic diagram according to the filtration using rigid member of the utility model embodiment.

Fig. 9 is the schematic diagram according to the rigid member of the utility model embodiment.

Figure 10 is the schematic diagram according to the rigid member of the utility model embodiment.

It need to be pointed out that：

Dotted line in Fig. 1,2 represents the cutting scope to the in-built broken section of display device.

Dotted line in Fig. 3,9 and 9 then represents to omit the part beyond dotted line.

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 utility model in detail.

In order that those skilled in the art are better understood from the utility model, implement below in conjunction with the utility model Accompanying drawing in example, clear, complete description is carried out to the technical scheme in the utility model embodiment embodiment, it is clear that retouched The embodiment stated is only the embodiment of the branch of the utility model one, rather than whole embodiments.Based in the utility model Embodiment, the every other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made Example, it should all belong to the scope of the utility model protection.

The utility model embodiment provides a kind of device of the filtering suspended particles thing from gas.Fig. 2 is according to this reality With the schematic diagram of the device of filtering suspended particles thing from gas of new embodiment.

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, cross filtering element Part 100 connects the net gas delivery outlet by the end of filter element 100 with the inner chamber of both Gas-cleaning boxes 300 to form net gas transmission Passage, the blowback system 600 are 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, and therefore, the net gas delivery outlet of filter element 100 is also located at accordingly The lower end of filter element 100.

When said apparatus is run, in the presence of blower fan, Primordial Qi is entered around filter element 100, passes through filtering element Turn into net gas after part 100, net gas enters in the Gas-cleaning box 300 below filter element 100 most from the inner chamber of filter element 100 again Discharged afterwards from the exhaust outlet (referring to exhaust outlet 310 shown in Fig. 3) of Gas-cleaning box 300.When being gathered in the surface of filter element 100 When dust is thicker, blowback system 600 can be started reverse gas cleaning is carried out 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 which 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 from net gas delivery outlet in the inner chamber of filter element 100 during blowback is also gradual from the bottom up 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, the thickness distribution non-uniform phenomenon of dust of the device after long-term use on filter element 100 can be improved. It is pointed out that " depth direction of filter element " mentioned in the utility model, refer to the net gas delivery outlet of filter element The one end at place 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 formed In body structure, because volume is big, 300 center of gravity that is underlying and reducing the agent structure of Gas-cleaning box of heavier-weight, contribute to excellent Change the supporting construction of whole device, improve stability during plant running.

In addition, although underlying Gas-cleaning box 300 seems to hamper the sedimentation of dust, but 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 accumulated on the top of Gas-cleaning box 300.

In general, the positioner 200 includes being used to form 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 by the through hole that is arranged on orifice plate 210 with 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, and easily multiple filter elements 100 can be also installed on same orifice plate 210 to increase device Filter area.But orifice plate 210 is not that can be uniquely installed to the lower end of filter element 100 in the utility model embodiment Gas-cleaning box 300 and the technological means for making the inner chamber of filter element 100 be turned on the inner chamber of Gas-cleaning box 300.Using other technology hands Section, such as by by the lower end of filter element 100 and joint that Gas-cleaning box 300 is connected to install filter element 100 be also feasible One of mode.

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, which can also double 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 The supporting construction of the Gas-cleaning box 300 is supported, so as to which Gas-cleaning box 300 is directly placed on ground.

As shown in Fig. 2 according to one embodiment of the present utility model, from gas the device of filtering suspended particles thing be by Gas-cleaning box 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 dress shown in Fig. 1 Product after being improved on the basis of putting, therefore the exhaust outlet 310 of the Gas-cleaning box 300 of two table apparatus is necessary to ensure that in the design process It is contour, to avoid the modification pair the pipeline being connected with exhaust outlet 310.

By Fig. 1 and Fig. 2 contrast, 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, by embodiment of the present utility model be by filter element 100 be arranged on Gas-cleaning box 300 top and Fig. 1 institutes Showing device is the lower section that filter element 100 is arranged on to Gas-cleaning box 300, therefore, the filter element in the utility model embodiment 100 setting height(from bottom) is by apparently higher than the setting height(from bottom) of filter element 100 in Fig. 1 shown devices.It is noted above, in weight Under the influence of power, the dust concentration in Primordial Qi gradually increases from top to bottom, and words sentence is talked about, and the installation of filter element 100 is high Dust concentration in the Primordial Qi of its higher contact of degree will be lower.Therefore, in the utility model embodiment filter element 100 by Primordial Qi The pollution of middle dust will be less than Fig. 1 shown devices.

According to one embodiment of the present utility model, on the basis of the technical scheme of any one above-mentioned possible embodiment On, 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 Auxiliary positioning connector 230 is provided between filter element 100.Thus, can be positioned by auxiliary positioning connector 230, Improve the stability of filter element 100.

The structure of auxiliary positioning connector 230 can be compared free design, in general, as long as installed in support On frame 400 can to filter element 100 carry out certain orientation on it is spacing, belong to the category of auxiliary positioning connector 230.

According to one embodiment of the present utility model, on the basis of the technical scheme of any one above-mentioned possible embodiment On, the case 500 being arranged on the Gas-cleaning box 300, the filter element 100 are also provided with the top of the Gas-cleaning box 300 It is contained 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 to protect filter element 100.When the present apparatus is as the sky for being placed on outdoor During gas dust removal by filtration equipment, case 500 can avoid rainwater from directly being contacted with filter element 100.

On the basis of the technical scheme of any one above-mentioned possible embodiment, the preferred reality as blowback system 600 Mode is applied, the blowback system 600 includes gas bag 610, pulse valve 620 and the injection tube 630 being sequentially connected, the gas bag 610 It is arranged on pulse valve 620 on the lateral surface of Gas-cleaning box 300, 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, which is stretched into Gas-cleaning box 300, acts on corresponding net gas delivery outlet, and therefore, blowback air-flow passes through from pulse valve 620 Cross injection tube 630 flow through corresponding net gas delivery outlet 131 distance it is shorter, it is not necessary to by as in Fig. 1 this elder generation from net gas The top of case 300 from top to bottom into Gas-cleaning box 300, along the direction parallel with orifice plate flow again after the height of orifice plate 210 by deflecting Dynamic turnover process, therefore the pressure loss of blowback air-flow is smaller；Further, since blowback system 600 is placed in Gas-cleaning box 300 Side, therefore the maintenance to blowback system 600 can also be easy to.

The utility model embodiment is described in detail with reference to Fig. 3.

Fig. 3 is Fig. 2 left view.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 and outside Boundary's air conducting.The air intake structure 510 is that the device based on corresponding embodiment is as the air filtering dust-removing for being placed on outdoor Equipment and design.According to different application of the present utility model, the air intake structure 510 can also modify accordingly.

When being provided with least two filter elements 100 in the utility model embodiment, then the blowback system 600 is more excellent The structure of choosing is：It is 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 Top be provided with the pulse valve that multiple length directions along the gas bag 610 are spaced and are connected respectively with the gas bag 610 620, each pulse valve 620 is corresponding to be connected with the injection tube 630 perpendicular to the side wall of Gas-cleaning box 300, and each injection tube 630 acts on correspondingly Filter element 100, be provided with the spray corresponding with the net gas delivery outlet 131 in respective filter elements 100 in each injection tube 630 Mouthpiece.

The utility model embodiment is described in detail with reference to Fig. 4 to 5.

Fig. 4 is the schematic diagram according to filter element in the utility model embodiment.Fig. 5 is Fig. 4 upward view.Such as Figure 4 and 5 Shown, 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 was located at The upper connecting portion 120 of the upper end of filter portion 110 and the lower connecting portion 130 positioned at the lower end of filter house 110, each upper end of chimney filter 111 pass through upper Connecting portion 120 is connected as one, the lower end of each chimney filter 111 is connected as one by lower connecting portion 130, under lower connecting portion 130 The net gas delivery outlet 131 turned on each inner chamber of chimney filter 111 is set on end face, and the filter element 100 is by acting on lower connection The attachment structure 220 in portion 130 is arranged on orifice plate 210.

Preferably, the upper connecting portion 120 as the sealing plate for each blind end of chimney filter 111 by forming.

Preferably, the chimney filter 111 includes interior tube layer and the attachment being made up of high density porous polyethylene supporter 111 The external tube layer being made up of on the internal layer tube outer surface and expanded PTFE filtration membrane 112.

On above-mentioned filter element 100, the utility model that it is constructed with China Patent Publication No. is CN103089714A is special Sharp application documents (reference paper provided in background technology) are similar, and 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 in the utility model embodiment The annular sealing strip 132 for surrounding each net gas delivery outlet 131 is provided with the lower surface of lower connecting portion 130；Filtering element is crossed when described When part 100 is arranged on orifice plate 210 by acting on the attachment structure 220 of lower connecting portion 130, the annular sealing strip 132 is pressed Tightly between the lower surface of lower connecting portion 130 and orifice plate 210.And in reference paper, it is in lower connecting portion that annular sealing strip, which is set, On the end face of 130 close filter house 110.

Based on above-mentioned difference, filter element 100 connects when being attached on orifice plate 210, under it in the utility model embodiment Socket part 130 is without pass through orifice plate 210, and therefore, the installation difficulty of filter element 100 reduces and can reduce opening for orifice plate 210 Hole area.

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 that the convex shoulder 700 has side 710.Described convex shoulder 700 is equivalent to step, so as to serve convenient installation 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 both ends of convex shoulder 700 The threaded fastener that plate 210 connects.Although it is this by convex shoulder 700 and orifice plate 210 by way of threaded fastener connection compared with Simply, but the pretightning force 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.

The utility model embodiment is described in detail with reference to Fig. 6 to 10.

In order to solve the problems, such as that the pretightning force between convex shoulder 700 and orifice plate 210 is excessively concentrated, according to reality of the present utility model Apply example, there is provided the attachment structure with rigid member 222.

Fig. 6 is the schematic diagram according to the filtration using rigid member of the utility model embodiment.Fig. 7 is Fig. 6's Left view.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 pretension Part 221 and rigid member 222, wherein, the rigid member 222 includes being used to be arranged on the side of convex shoulder 700 and along convex shoulder 700 Side 710 extend side round part 222a, by side round part 222a edge be bent to form be used for withhold in convex shoulder 700 close to mistake So that uniformly being pressed on the length range of the side 710 of convex shoulder 700 between convex shoulder 700 and orifice plate 210 on the end face in filter portion 110 Tight kink 222b, and for realizing that pretension connects between the rigid member 222 and orifice plate 210 by preload piece 221 Forced section 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 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.It 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 by the way that the steel plate of high rigidity be formed by bending process.

As can be seen that sides 710 of the kink 222b along convex shoulder 700 extends to filter house 110 from Fig. 7 and Fig. 9 Outside form forced section 222c.And forced section 222c and orifice plate 210 can be close to by preload piece 221 in advance using threaded fastener Connect.

Need repeatedly to be tightened during threaded fastener because preload piece 221 uses, it is more inconvenient in operation, therefore also may be used Using handle type holding device 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 be mounted on filter element side and with orifice plate 210 On the supporting member 410 of fixed setting, transmission mechanism 221b be arranged on support base 221a and respectively with top-fastening rod 221c and handle 221d connections, when operation handle 221d make top-fastening rod 221c reach can make top-fastening rod 221c head compress forced section 222c so as to Make to realize that pretension connects between the rigid member 222 and orifice plate 210, moving after operation handle 221d makes top-fastening rod 221c to make Top-fastening rod 221c head separates with forced section 222c.The supporting member 410, which can be fixed on, above-mentioned is arranged on the Gas-cleaning box 300 On support frame 400 on.

Fig. 8 is the schematic diagram according to the filtration using rigid member of the utility model embodiment.Figure 10 is in Fig. 8 The schematic diagram of shown rigid member.As shown in figures 8 and 10, the rigid member is the section bar of U-shaped profile, the section bar bag Include two 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 Kink 222b that side round part 222a edge is bent to form and the transition part being connected between the two side round part 222a 222d.Preferably, the transition part 222d doubles as being for realizing between rigid member and orifice plate 210 by preload piece 221 The forced section 222c of pretension connection；The preload piece 221 can use threaded fastener, also can hold out against dress using above-mentioned handle type Put.

Claims (8)

1. filter element to be 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 form 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) passes through it End face or in sealing contact close to the end face of filter house (110) and orifice plate (210) by it 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 be used for withhold convex shoulder (700) away from filter house (110) end face or close to filter house (110) end So that uniformly being compressed on the length range of the side of convex shoulder (700) (710) between convex shoulder (700) and orifice plate (210) on face So as to realize the kink in sealing contact (222b), 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 include：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) are 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：Side of the kink (222b) along convex shoulder (700) (710) extend to and forced section (222c) is formed outside filter house (110).

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 include：Two side round part for being respectively used to be arranged between the convex shoulder (700) of adjacent filter elements (100) (222a), two kinks (222b) being bent to form respectively by the edge of the two side round part (222a) 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：The transition part (222d) doubles as being for passing through pretension 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) that connection is adapted to filter element (100) And preload piece pretension will be realized between the forced section (222c) of the rigid member (222) and orifice plate (210) be connected (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 To put, the handle type holding device includes support base (221a), transmission mechanism (221b), top-fastening rod (221c) and handle (221d), On the supporting member (410) that the support base (221a) is mounted on filter element side and is fixedly installed with orifice plate (210), Transmission mechanism (221b) is arranged on support base (221a) and is connected respectively with top-fastening rod (221c) and handle (221d), works as manipulator Handle (221d) makes top-fastening rod (221c) reach the head of top-fastening rod (221c) can be made to 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) separates with forced section (222c).