CN101865356A - Energy-dissipation orifice plate - Google Patents
Energy-dissipation orifice plate Download PDFInfo
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- CN101865356A CN101865356A CN200910082366A CN200910082366A CN101865356A CN 101865356 A CN101865356 A CN 101865356A CN 200910082366 A CN200910082366 A CN 200910082366A CN 200910082366 A CN200910082366 A CN 200910082366A CN 101865356 A CN101865356 A CN 101865356A
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Abstract
The invention provides an energy-dissipation orifice plate comprising a main body of the orifice plate and an upper wearing piece, wherein the main body of the orifice plate is provided with a center hole of the main body of the orifice plate; and the upper wearing piece is arranged on the surface of the upstream side of the main body of the orifice plate and the inner circumferential wall of the center hole of the main body of the orifice plate. According to the invention, the energy-dissipation orifice plate has abrasion resistance, long service life and simple processing and is especially suitable for being installed in a pipeline conveying ore pulp to carry out energy dissipation on the conveying of the ore pulp.
Description
Technical field
Present invention relates in general to a kind of energy-dissipation orifice plate, especially relate to a kind of split type wear-resisting energy-dissipation orifice plate that is used to reduce the FLUID TRANSPORTATION energy in the pipeline that is installed in.
Background technique
Utilizing pipeline or other passages, especially vertical or downward-sloping pipeline, in the process of conveyance fluid, the speed of fluid can be increasing.In other words, the energy that fluid has is increasing, thereby can cause cavitation erosion and wearing and tearing to pipeline etc., and particularly when conveying contained sand flow body such as ore pulp, the wearing and tearing meeting that causes was more serious, therefore needed fluid delivery to carry out energy dissipating.
Traditionally, usually adopt and energy-dissipation orifice plate is set in pipeline flow of liquid is carried out energy dissipating.For example, Chinese invention patent ZL93107799.0 discloses a kind of eddy-eliminating orifice, and the inner peripheral surface in this orifice plate main center hole partly is made up of the triangle annulus part and the downstream trapezoid annulus of upstream.Above-mentioned traditional orifice plate is an integral structure, and therefore complex structure is difficult to processing, wears no resistance.Particularly work as fluid and contain ore in sand form (for example, the concentrate in ore dressing plant and mill tailings etc.), it is more serious to wear and tear, life-span shortens greatly, after the orifice plate wearing and tearing, needs to change whole orifice plate in addition, thereby the cost height especially can not be applicable to the FLUID TRANSPORTATION that contains ore in sand form etc. is carried out energy dissipating.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least.
For this reason, one object of the present invention is to propose long, the simple split type energy-dissipation orifice plate of processing of a kind of wear-resistant, life-span, and this energy-dissipation orifice plate is particularly suitable for being installed in the fluid of carrying abrasion strong, and (as contain the ore in sand form fluid: fluid delivery is carried out energy dissipating in pipeline ore pulp).
Energy-dissipation orifice plate according to the present invention comprises: the orifice plate main body, and described orifice plate main body has orifice plate main center hole; With last wearing piece, the described wearing piece of going up is arranged on the upstream side surface of described orifice plate main body and on the inner circle wall in orifice plate main center hole.
Also have following additional technical feature according to energy-dissipation orifice plate of the present invention:
Also comprise wearing piece down according to energy-dissipation orifice plate of the present invention, described wearing piece down has following wearing piece center hole and is arranged on the downstream side surface of orifice plate main body.
Be formed with the downstream side groove on the downstream side surface of described orifice plate main body, and described wearing piece down is located in the groove of downstream side.
Described upward wearing piece comprises cylinder and from the outward extending integratedly flange of cylinder upstream extremity, wherein said cylinder is positioned at described orifice plate main center hole and described flange is positioned on the upstream side surface of orifice plate main body.
Describedly go up that wearing piece comprises cylinder and from the outward extending integratedly flange of cylinder upstream extremity; Be formed with the upstream side groove on the upstream side surface of described orifice plate main body; The thickness that wherein said flange is positioned at described upstream side groove and described flange is less than or equal to the degree of depth of described upstream side groove.
Periphery around flange in described upstream side groove is provided with the upper periphery wearing piece.
The thickness of described upper periphery wearing piece equals the thickness of described flange.
Described upper periphery wearing piece is arranged by a plurality of fan-shaped wear-resistant blocks and is formed.
Described wearing piece down comprises core and centers on the peripheral part of core that described peripheral part is arranged by a plurality of fan-shaped wear-resistant blocks and formed.
Described peripheral part and upper periphery wearing piece measure-alike.
On the upstream side surface of orifice plate main body, be formed with annular seal groove, and/or on the downstream side surface of orifice plate main body, be formed with annular seal groove down.
At least have one of following advantage according to energy-dissipation orifice plate of the present invention:
According to energy-dissipation orifice plate of the present invention, on the sidewall of upstream side surface and center hole, be provided with wearing piece, especially under the situation that contains ore in sand form etc. in the fluid, prolonged the life-span of energy-dissipation orifice plate greatly, and, after last wearing piece wearing and tearing, only need replace with wearing piece, the orifice plate main body can be reused, and the orifice plate main body need not to make with expensive high-abrasive material, thereby has reduced cost.In addition, the processing of energy-dissipation orifice plate is simple.
According to energy-dissipation orifice plate of the present invention,, can reduce impact, wearing and tearing and the cavitation erosion of fluid on the downstream side surface of energy-dissipation orifice plate main body to orifice plate main body downstream side surface by wearing piece down is set.
According to energy-dissipation orifice plate of the present invention, following wearing piece can be arranged on the degree of depth that downstream side groove in the downstream side surface and thickness are less than or equal to the downstream side groove, promptly descend wearing piece not expose, thereby when transportation and installation, reduce the damage of wearing piece down from the downstream side surface of orifice plate main body.
According to energy-dissipation orifice plate of the present invention, last wearing piece is the cylinder that an end has flange, and promptly going up wearing piece is T shape shape substantially.Therefore, cylinder can be arranged in the orifice plate main center hole and flange is stuck on the upstream side surface of orifice plate main body, thereby the installation of going up wearing piece is simple, and be not easy because of the impact of fluid movable.
According to energy-dissipation orifice plate of the present invention, the flange of last wearing piece is contained in the upstream side groove and thickness is less than or equal to the degree of depth of upstream side groove, promptly go up the upstream side surface that wearing piece can not expose the orifice plate main body, therefore when transportation and installation energy-dissipation orifice plate, can not cause damage wearing piece.
According to energy-dissipation orifice plate of the present invention, when the size of orifice plate main body is big, promptly when being installed in the larger-size pipeline, if the size of flange is too big, then be not easy processing, therefore, the upper periphery wearing piece is set, can further simplifies processing by periphery in the upstream side groove around flange.In addition, the thickness of upper periphery wearing piece equals the thickness of flange, makes that the lip-deep wearing piece of orifice plate main body upstream side is concordant.And then, by making the upper periphery wearing piece, can further simplify the processing and the installation of going up wearing piece with a plurality of fan-shaped wear-resistant blocks.
According to energy-dissipation orifice plate of the present invention, as mentioned above, when the size of orifice plate main body is big, can will descend wearing piece to be divided into core and peripheral part, for example core can be annular, and peripheral part is formed by a plurality of fan-shaped wear-resistant blocks arrangements, is convenient to the processing and the installation of wearing piece down thus.
According to energy-dissipation orifice plate of the present invention, by making the measure-alike of peripheral part and upper periphery wearing piece, can further reduce manufacture cost, for example when peripheral part and upper periphery wearing piece all have a plurality of fan-shaped wear-resistant blocks to constitute, constituting the fan-shaped wear-resistant block of peripheral part and the fan-shaped wear-resistant block of the formation upper periphery wearing piece of correspondence can exchange, reduce manufacture cost, increased the convenience of installation and maintenance.
According to energy-dissipation orifice plate of the present invention, by on the upstream side surface and/or downstream side surface of orifice plate main body, on orifice plate main body and part that pipeline is connected, form respectively and go up annular seal groove and/or following annular seal groove, when energy-dissipation orifice plate is installed on the pipeline, fluid in the pipeline can enter in the seal groove, thereby forms the water-stop line, has increased sealability.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming embodiment's the description below in conjunction with accompanying drawing, wherein:
Fig. 1 is the schematic representation that the energy-dissipation orifice plate of first embodiment of the invention is connected with piping flange;
Fig. 2 is the right elevation of energy-dissipation orifice plate shown in Figure 1;
Fig. 3 is the sectional front view of energy-dissipation orifice plate shown in Figure 1;
Fig. 4 is the left view of energy-dissipation orifice plate shown in Figure 1;
Fig. 5 is the structural representation according to the orifice plate main body of first embodiment of the invention energy-dissipation orifice plate;
Fig. 6 is the schematic representation that the energy-dissipation orifice plate of second embodiment of the invention is connected with piping flange;
Fig. 7 is the right elevation of energy-dissipation orifice plate shown in Figure 6;
Fig. 8 is the sectional front view of energy-dissipation orifice plate shown in Figure 6;
Fig. 9 is the left view of energy-dissipation orifice plate shown in Figure 6;
Figure 10 is the structural representation according to the orifice plate main body of second embodiment of the invention energy-dissipation orifice plate.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
Need to prove in the description of this specification, to have cylindric and orifice plate main center hole is that circle is that example is described, thereby go up wearing piece, wearing piece and upper periphery wearing piece all are adapted to above-mentioned shape down with energy-dissipation orifice plate and orifice plate main body.Yet the present invention is not limited to this, and for example, energy-dissipation orifice plate, orifice plate main body, orifice plate main center hole and upstream side groove, downstream side groove etc. can be for square, as long as the shape and size of these elements are adaptive just passable.
In the present invention, positions such as term " upper and lower, upstream side, downstream side " relation only is the present invention for convenience of description, and can not be interpreted as limitation of the present invention for based on position shown in the drawings relation.For example, in Fig. 1 and Fig. 6, upstream side and downstream side are based on the upstream side and the downstream side of the fluid flow direction shown in the arrow A.
Energy-dissipation orifice plate 100 according to the embodiment of the invention is installed in the pipeline (not shown), is used for the fluid in the pipeline (fluid that the ability of especially wearing and tearing is strong, as the field, mine contain the sand flow body) is carried and carried out energy dissipating.As Fig. 1 and shown in Figure 6, energy-dissipation orifice plate 100 links together by stud 7 and nut 8 with two mounting flanges 5,6 of pipeline, thereby energy-dissipation orifice plate 100 is installed in the pipeline.
In order to increase sealability, between energy-dissipation orifice plate 100 and mounting flange 5,6, be provided with seal ring 9 respectively.Energy-dissipation orifice plate 100 is called mounting portion 11 in the part of mounting flange 5,6 center hole peripheries, is used for connecting with mounting flange 5,6.Shown in Fig. 5 and 10, the periphery of the orifice plate main body 1 of energy-dissipation orifice plate 100 reduces along the thickness of part, thereby with mounting flange 5,6 when linking to each other, the periphery of orifice plate main body 1 can leave little gap along between part and the surface of mounting flange 5,6, and promptly mounting portion 11 forms the form of boss, can increase the join strength of energy-dissipation orifice plate 100 and mounting flange 5,6 thus.
Therefore in Fig. 1 and Fig. 6, arrow A is represented the flow direction of fluid (for example ore pulp) in pipeline, and at Fig. 1, Fig. 5, the upper surface of energy-dissipation orifice plate 100 is called the upstream side surface and lower surface is called downstream side surface among Fig. 6 and Figure 10.
Below with reference to the energy-dissipation orifice plate 100 of Fig. 1-5 detailed description according to first embodiment of the invention.
Shown in Fig. 1-5, energy-dissipation orifice plate 100 comprises orifice plate main body 1 and last wearing piece 2, orifice plate main body 1 is formed with and is used for the orifice plate main center hole 12 that ore pulp passes through, and last wearing piece 2 is arranged on the upstream side surface of orifice plate main body 1 and on the inner circle wall in orifice plate main center hole 12.
For example, orifice plate main body 1 can be made by forged steel, and last wearing piece 2 can be made (as oxide ceramics, nitride ceramics, carbide ceramics and boride ceramics etc.) by the wear-resistant ceramic based composites.Orifice plate main body 1 is made separately by different materials with last wearing piece 2, therefore the manufacture cost of energy-dissipation orifice plate 100 reduces, and after use a period of time is gone up wearing piece 2 wearing and tearing, only needs to replace with wearing piece 2, orifice plate main body 1 can be reused, thereby has further reduced manufacture cost.
Last wearing piece 2 can be bonded on the orifice plate main body 1 by Bond (as epoxy adhesive).Simultaneously, on the upstream side surface of orifice plate main body 1, last wearing piece 2 can additionally be fastened on the orifice plate main body 1 with screw.
As Fig. 1 and shown in Figure 5, installation and carrying for the ease of energy-dissipation orifice plate 100, on the periphery wall of orifice plate main body 1, can be formed with handle hole 17, handle hole 17 for example can be tapped hole, when needs carrying and installation energy-dissipation orifice plate 100, operating stem (as threaded stem) is inserted in the handle hole 17, thereby can carry and install energy-dissipation orifice plate 100 easily.
When ore pulp during along arrow A from the upstream flow further downstream, ore pulp bump energy-dissipation orifice plate 100 and by energy dissipating, be positioned at the upstream side surface that the lip-deep upward wearing piece 2 of orifice plate main body 1 upstream side prevents fluid erosion orifice plate main body 1, and the last wearing piece 2 on orifice plate main center hole 12 inner circle walls can prevent the inner circle wall in fluid abrasion orifice plate main center hole 12.When last wearing piece 2 may wear to a certain degree, will go up wearing piece 2 and change, need not to change orifice plate main body 1, thereby reduced cost, increased the life-span of energy-dissipation orifice plate 100.
In some embodiments of the invention, shown in Fig. 1-4, last wearing piece 2 comprises cylinder 21 and the outward extending integratedly flange 22 of cylinder 21 upstream extremities, from forming T shape substantially.As shown in figs. 1 and 3, cylinder 21 has center hole 23 and is installed on the inner circle wall in orifice plate main center hole 12, and the downstream of cylinder 21 is concordant with the downstream side surface of orifice plate main body 1, be understandable that, the external diameter of cylinder 21 is slightly less than orifice plate main center hole 12 internal diameters, is beneficial to install.Flange 22 is positioned on the upstream side surface of orifice plate main body 1.In other words, last wearing piece 2 flanges 22 are stuck on the upstream side surface of orifice plate main body 1, thereby go up the easier for installation of wearing piece 2.In addition, in order to increase firm degree, as mentioned above, flange 22 can be bonded on the upstream side surface of orifice plate main body 1 and can be additionally fastening with screw with Bond, simultaneously, cylinder 21 also is bonded on the inner circle wall in orifice plate main center hole 12 with Bond.
In some embodiments of the invention, as shown in Figure 5, be formed with the Centered upstream side groove 13 in its center and orifice plate main center hole 12 on the upstream side surface of orifice plate main body 1.In other words, upstream side groove 13 also can be thought the radial dimension that orifice plate main center hole 12 is positioned at the part of upstream extremity enlarged and forms.
The outer circumferential face that flange 22 is positioned at upstream side groove 13 and flange 22 contacts with the inner circle wall of upstream side groove 13, thereby there is not the part that is not covered by flange 22 in the upstream side surface of orifice plate main body 1, otherwise the abrasion of the part that ore pulp exposes orifice plate main body 1, need to change orifice plate main body 1, cause cost to increase.
As shown in figs. 1 and 3, the thickness of flange 22 is less than the degree of depth of upstream side groove 13, thus, in the time will going up wearing piece 2 and be installed on the orifice plate main body 1, flange 22 does not expose the upstream side surface of orifice plate main body 1, thereby in carrying and installation process, can unexpectedly not cause damage to wearing piece 2.Certainly, the thickness of flange 22 also can equal the degree of depth of upstream side groove 13.
In addition, as Fig. 1 and shown in Figure 5, in order to increase energy-dissipation orifice plate 100 and mounting flange 5,6 fastening forces that connect also can form downstream side groove 14 in the downstream side surface of orifice plate main body 1, thereby when connecting, mounting flange 5,6 only contact the mounting portion 11 on orifice plate main body 1 downstream side surface, as mentioned above, because the thickness on orifice plate main body 1 periphery edge also reduces, therefore, mounting flange 5,6 can not contact the part in the 11 interior outsides, mounting portion of orifice plate main body 1, thereby can increase fastening force.
As shown in Figure 5, in order to increase the sealability between energy-dissipation orifice plate 100 and the mounting flange 5,6, on the upstream side surface of orifice plate main body 1 and downstream side surface, annular seal groove 15a and following annular seal groove 15b have been formed respectively.More specifically, last annular seal groove 15a and following annular seal groove 15b are respectively formed on the mounting portion 11 of upstream side surface and downstream side surface, in the example depicted in fig. 5, the cross section of last annular seal groove 15a and following annular seal groove 15b is a triangle, for example the degree of depth is 1 millimeter or 2 millimeters, but the present invention is not limited to this, thereby in use, if the ore pulp in the pipeline is from mounting flange 5,6 and energy-dissipation orifice plate 100 between the slit ooze out, then fluid enters annular seal groove 15a and following annular seal groove 15b, thereby forms potted line, has further increased sealability.
Below with reference to the energy-dissipation orifice plate 100 of Fig. 6-10 description according to second embodiment of the invention.As shown in Figure 6, the energy-dissipation orifice plate 100 according to second embodiment of the invention is installed between the mounting flange 5,6 of pipeline equally.
Energy-dissipation orifice plate 100 according to second embodiment of the invention comprises orifice plate main body 1, goes up wearing piece 2 and following wearing piece 4.Following wearing piece 4 is arranged on the downstream side surface and has following wearing piece center hole, the diameter of following wearing piece center hole can with the equal diameters in the orifice plate main center hole 12 of orifice plate main body 1, the downstream of the cylinder 21 of wearing piece 2 is passed down wearing piece 4 and concordant with the downstream side surface of following wearing piece 4 on this moment, shown in Fig. 6 and 8, but the present invention is not limited to this.For example, the diameter of following wearing piece center hole can equate that the downstream of cylinder 21 is not passed down wearing piece 4 but be concordant with the downstream side surface of orifice plate main body 1 at this moment with the internal diameter of cylinder 21.
In one embodiment of the invention, as shown in Figure 8, on the downstream side surface of orifice plate main body 1, be formed with downstream side groove 14.Following wearing piece 4 be contained in the downstream side groove 14 and thickness less than the degree of depth of downstream side 14 grooves, thereby wearing piece 4 can not expose from the downstream side surface of orifice plate main body 1 down, in carrying and installation process, can not cause damage to following wearing piece 4.Certainly, the thickness of following wearing piece 4 also can equal the degree of depth of downstream side 14 grooves.
Last wearing piece 2 is a T shape shape substantially, comprises cylinder 21 and from the outward extending integratedly flange 22 of cylinder 21 upstream extremities.Flange 22 is contained in the upstream side groove 13, and cylinder 21 is positioned at orifice plate main center hole 12 and leans against on the inner circle wall in orifice plate main center hole 12.
Following wearing piece 4 and last wearing piece 2 can be made with wear-resistant ceramic based composites (as oxide ceramics, nitride ceramics, carbide ceramics and boride ceramics etc.), and present embodiment adopts the aluminium oxide ceramics of Zirconium oxide plasticizing, but the present invention is not limited to this.For example because the impact that the downstream side surface of orifice plate main body 1 is subjected to is big not as the impact that the upstream side surface is subjected to, therefore, material such as nylon that also available other prices of following wearing piece 4 are lower are made, and can further reduce cost.
Shown in Fig. 6 and 8, in one embodiment of the invention, following wearing piece 4 comprises core 41 and centers on the peripheral part 42 of core 41, core 41 is a ring, by Bond, for example epoxy adhesive is bonded in the downstream side groove 14, and core 41 is formed with through hole 411 simultaneously, on orifice plate main body 1, be formed with tapped hole 17 accordingly, thereby can utilize the screw (not shown) additionally core 41 to be fixed on the orifice plate main body 1.Peripheral part 42 also utilizes Bond to be bonded in the downstream side groove 14 and around core 41, utilizes screw additionally peripheral part 42 to be fixed in the downstream side groove of orifice plate main body 1 by corresponding tapped hole 16 on the through hole 421 that forms on the peripheral part 42 and the orifice plate main body 1 simultaneously.Because it is wearing piece 4 is made of two-part down, when therefore the size of wearing piece 4 is big instantly, easy to manufacture.
As shown in Figure 7, peripheral part 42 can be arranged by the fan-shaped wear-resistant block of polylith and form, thus peripheral part 42 easier processing and installations.All form on each wear-resistant block by through hole 421, each wear-resistant block is bonded on the orifice plate main body 1 by Bond, and is additionally fixing with screw then.When the size of energy-dissipation orifice plate 100 is very big, a plurality of wear-resistant blocks of peripheral part 42 usefulness arrange form highly beneficial, processing and easy for installation, cost reduction.
Shown in Fig. 6-9, in one embodiment of the invention, the periphery around flange 22 in upstream side groove 13 is provided with upper periphery wearing piece 3, and in illustrated example, upper periphery wearing piece 3 also has the fan-shaped wear-resistant block arrangement of polylith to form.The outer circumferential face of upper periphery wearing piece 3 contacts with the inner circle wall of upstream side groove 13, thereby the upstream side surface of orifice plate main body 1 is not exposed to the part of fluid.Certainly, it will be appreciated that upper periphery wearing piece 3 also can be integral with flange 22, promptly upper periphery wearing piece 3 is parts of flange 22, and this is fine for the less energy-dissipation orifice plate 100 of size.When energy-dissipation orifice plate 100 sizes (being the pipeline radial dimension) were big, it was favourable that upper periphery wearing piece 3 and flange 22 separate that formation and upper periphery wearing piece 3 form by a plurality of wear-resistant blocks arrangements, the processing of upper periphery wearing piece 3 and easy for installation.Upper periphery wearing piece 3 is the same with last wearing piece 2, can make by the wear-resistant ceramic based composites, and each wear-resistant block is bonded on the orifice plate main body 1 by Bond, utilizes screw additionally to be fastened on the orifice plate main body 1 by being formed on tapped hole 16 corresponding on through hole 31 on each wear-resistant block and the orifice plate main body 1 then.The thickness of upper periphery wearing piece 3 can equal the thickness of flange 22, thereby their upstream side surface is concordant and be contained in the upstream side groove 13, has avoided carrying and is damaged when installing.
According to one embodiment of present invention, upper periphery wearing piece 3 and peripheral part 42 measure-alike, certainly, this moment, the external diameter of core 41 was identical with the external diameter of flange 22.Thus, upper periphery wearing piece 3 and peripheral part 42 can exchange, and safeguard and change conveniently, have reduced the model of spare part, have reduced cost.When upper periphery wearing piece 3 and peripheral part 42 are all arranged when forming by a plurality of fan-shaped wear-resistant blocks, the fan-shaped wear-resistant block of formation upper periphery wearing piece 3 is measure-alike with the fan-shaped wear-resistant block of corresponding formation peripheral part 42, thereby increased interchangeability, processed conveniently, cost reduces.
According to one embodiment of present invention, when upper periphery wearing piece 3 and peripheral part 42 are all arranged when forming by a plurality of fan-shaped wear-resistant blocks, the outer circumferential face of upstream side groove 13 form along from the upstream towards the outward-dipping inclined-plane of the direction in downstream, and the outer circumferential face of upper periphery wearing piece 3 forms the inclined-plane adaptive with the outer circumferential face of upstream side groove, thereby the fan-shaped wear-resistant block that constitutes upper periphery wearing piece 3 is more firm with being connected of orifice plate main body 1.Similarly, the outer circumferential face of downstream side groove 14 form along from the downstream towards the outward-dipping inclined-plane of the direction of upstream, and the outer circumferential face of following peripheral wearing piece 3 forms the inclined-plane adaptive with the outer circumferential face of downstream side groove, thereby the fan-shaped wear-resistant block that constitutes peripheral part 41 is more firm with being connected of orifice plate main body 1.
In one embodiment of the invention, on the lip-deep mounting portion 11 of the upstream side of orifice plate main body 1, be formed with annular seal groove 15a and on the mounting portion on the downstream side surface of orifice plate main body 1 11, be formed with annular seal groove 15b down.In use, if the ore pulp in the pipeline oozes out from the slit between mounting flange 5,6 and the energy-dissipation orifice plate 100, then fluid enters annular seal groove 15a and following annular seal groove 15b, thereby forms potted line, has further increased sealability.
Energy-dissipation orifice plate 100 according to second embodiment of the invention is particularly suitable for being installed in the bigger pipeline of diameter, and can effectively avoid the abrasion of ore pulp to the downstream side surface of energy-dissipation orifice plate 100, other structures are identical with above-mentioned first embodiment's energy-dissipation orifice plate 100 with operation, for simple purpose, be not described in detail here.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is limited by claims and equivalent thereof.
Claims (11)
1. an energy-dissipation orifice plate is characterized in that, comprising: the orifice plate main body, and described orifice plate main body has orifice plate main center hole; With last wearing piece, the described wearing piece of going up is arranged on the upstream side surface of orifice plate main body and on the inner circle wall in orifice plate main center hole.
2. energy-dissipation orifice plate according to claim 1 is characterized in that, also comprises wearing piece down, and described wearing piece down has following wearing piece center hole and is arranged on the downstream side surface of orifice plate main body.
3. energy-dissipation orifice plate according to claim 2 is characterized in that, is formed with the downstream side groove on the downstream side surface of described orifice plate main body, the degree of depth that described wearing piece down is located in the groove of downstream side and the thickness of wearing piece is less than or equal to the downstream side groove down.
4. energy-dissipation orifice plate according to claim 1 and 2, it is characterized in that, described upward wearing piece comprises cylinder and from the outward extending integratedly flange of cylinder upstream extremity, wherein said cylinder is positioned at described orifice plate main center hole and described flange is positioned on the upstream side surface of orifice plate main body.
5. energy-dissipation orifice plate according to claim 2 is characterized in that, describedly goes up that wearing piece comprises cylinder and from the outward extending integratedly flange of cylinder upstream extremity;
Be formed with the upstream side groove on the upstream side surface of described orifice plate main body;
The thickness that wherein said flange is positioned at described upstream side groove and described flange is less than or equal to the degree of depth of described upstream side groove.
6. energy-dissipation orifice plate according to claim 5 is characterized in that, the periphery around flange in described upstream side groove is provided with the upper periphery wearing piece.
7. energy-dissipation orifice plate according to claim 6 is characterized in that, the thickness of described upper periphery wearing piece equals the thickness of described flange.
8. energy-dissipation orifice plate according to claim 6 is characterized in that, described upper periphery wearing piece is arranged by a plurality of fan-shaped wear-resistant blocks and formed.
9. energy-dissipation orifice plate according to claim 6 is characterized in that, described wearing piece down comprises core and center on the peripheral part of core that described peripheral part is arranged by a plurality of fan-shaped wear-resistant blocks and formed.
10. according to the energy-dissipation orifice plate of claim 9, it is characterized in that described peripheral part and upper periphery wearing piece measure-alike.
11. energy-dissipation orifice plate according to claim 1 and 2 is characterized in that, is formed with annular seal groove on the upstream side surface of orifice plate main body, and/or is formed with annular seal groove down on the downstream side surface of orifice plate main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910082366A CN101865356A (en) | 2009-04-15 | 2009-04-15 | Energy-dissipation orifice plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910082366A CN101865356A (en) | 2009-04-15 | 2009-04-15 | Energy-dissipation orifice plate |
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| CN101865356A true CN101865356A (en) | 2010-10-20 |
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| CN200910082366A Pending CN101865356A (en) | 2009-04-15 | 2009-04-15 | Energy-dissipation orifice plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104838240A (en) * | 2013-02-01 | 2015-08-12 | 株式会社富士金 | Ceramic orifice plate with integrated gasket |
| CN112482323A (en) * | 2020-10-14 | 2021-03-12 | 中国电建集团华东勘测设计研究院有限公司 | Layered water taking structure suitable for high water head and small flow |
-
2009
- 2009-04-15 CN CN200910082366A patent/CN101865356A/en active Pending
Non-Patent Citations (1)
| Title |
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| 林秀山等: "《多级孔板消能泄洪洞的研究与工程实践（文本书）》", 31 March 2003 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104838240A (en) * | 2013-02-01 | 2015-08-12 | 株式会社富士金 | Ceramic orifice plate with integrated gasket |
| CN112482323A (en) * | 2020-10-14 | 2021-03-12 | 中国电建集团华东勘测设计研究院有限公司 | Layered water taking structure suitable for high water head and small flow |
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Application publication date: 20101020 |