CN104121952A - Orifice plate structure for natural gas metering - Google Patents
Orifice plate structure for natural gas metering Download PDFInfo
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- CN104121952A CN104121952A CN201410358921.5A CN201410358921A CN104121952A CN 104121952 A CN104121952 A CN 104121952A CN 201410358921 A CN201410358921 A CN 201410358921A CN 104121952 A CN104121952 A CN 104121952A
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- inner ring
- groove
- top board
- outer ring
- joint pin
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Abstract
The invention discloses an orifice plate structure for natural gas metering. The orifice plate structure comprises an outer ring and an inner ring, wherein a step A is arranged on the inner surface of the outer ring, a step B corresponding to the step A is arranged on the outer surface of the inner ring, the inner ring is arranged inside the outer ring, the inner surface of the inner ring is a conical surface, the end face, close to the small-diameter end of the conical surface, of the inner ring is evenly provided with grooves in the circumferential direction, and blind holes communicated with the grooves are formed in the outer ring. The orifice plate structure further comprises springs, ejector plates and connecting pillars, wherein the connecting pillars are inserted into the blind holes from the interiors of the grooves and make contact with the bottoms of the blind holes, one ends of the connecting pillars are located in the grooves, every two corresponding ejector plates are connected with the two ends of the corresponding spring, the springs and the ejector plates are arranged in the grooves, and one of two corresponding ejector plates abuts against the closed end of the corresponding groove and the other ejector plate abuts against the end, located in the corresponding groove, of the corresponding connecting pillar. The orifice plate structure is stable in structure, the inner ring or the outer ring can be conveniently replaced, and the maintenance cost is low.
Description
Technical field
The present invention relates to gas metering field, relate in particular to a kind of gas metering AND DEWATERING FOR ORIFICE STRUCTURE.
Background technology
Orifice plate is for producing pressure differential in gas flow testing process.
In the course of the work, combustion gas meeting is by the reducing place of orifice plate for orifice plate.Then when by orifice plate reducing place, can wash away orifice plate reducing place inside surface, cause the wearing and tearing of orifice plate reducing place, thereby affect flow detection precision.
And existing orifice plate mostly is monolithic construction, if the wearing and tearing of orifice plate reducing place need to be carried out integral replacing to orifice plate.The Chinese patent that publication number is " 203287055U " discloses a kind of " gas metering orifice plate ", the split-type structural that this orifice plate adopts carbide ring to coordinate with matrix, but in order to ensure orifice plate stability in use, carbide ring and matrix interference fit, and connect by fluid sealant between the two.This causes carbide ring to be difficult to take off from matrix, after carbide ring or matrix wearing and tearing, is difficult to wearing part to be changed targetedly.
Summary of the invention
Object of the present invention is to overcome the deficiencies in the prior art, provides a kind of stability strong, the gas metering AND DEWATERING FOR ORIFICE STRUCTURE that can change wearing part easily after wearing and tearing.
Object of the present invention is achieved through the following technical solutions:
Gas metering AND DEWATERING FOR ORIFICE STRUCTURE, comprises outer ring and inner ring; The inside surface of outer ring is provided with step A, and the outside surface of inner ring is provided with the step B corresponding with step A, and inner ring is arranged in outer ring, and step B coordinates with step A; The inside surface of inner ring is taper surface; Inner ring evenly offers groove near the end face of taper surface smaller diameter end by circumferencial direction, and groove is near one end sealing of inner ring central point, and groove is open away from one end of inner ring central point, offers the blind hole being communicated with groove on outer ring; Also comprise spring, top board and joint pin, joint pin inserts blind hole and in the contact of the bottom of blind hole in groove, one end of joint pin is arranged in groove, two top boards are connected with the two ends of spring respectively, spring and top board are arranged in groove, a top board holds out against one end of groove sealing, and another Roof stressed joint post is arranged in one end of groove.
In assembling process, inner ring is placed in to outer ring, then joint pin is put into groove, promote joint pin and enter in blind hole.By two top board application of forces are made to spring-compressed, top board and spring are positioned in groove, unclamp top board, spring is upheld, and by top board, joint pin is pressed in blind hole.So can be by stable inner ring being fixed on outer ring.
If inner ring or outer ring wearing and tearing, can pass through top board Compress Spring, then top board and spring are taken out from groove, extract joint pin out, so inner ring can be separated with outer ring, thereby inner ring or outer ring are changed.
Further, the larger diameter end arc transition of described taper surface.
The larger diameter end of taper surface is inlet end, and the situation of being washed away is the most serious.In order to improve the serviceable life of inner ring, the larger diameter end arc transition of taper surface is set, rock gas can be flow through in the situation that being subject to compared with slight drag, thereby slow down the short rate of wear of taper surface major diameter, improve the serviceable life of inner ring.
Further, on the top board contacting, offer circular blind hole with described joint pin, insert in circular blind hole the end of described joint pin.
This structure can prevent that joint pin and top board from relatively moving, and further improves stability of the present invention.
Further, the top of described top board offers slot.
Slot inserts for the clamping device that makes Compress Spring.
In sum, advantage of the present invention and beneficial effect are:
1. Stability Analysis of Structures of the present invention, and can change inner ring or outer ring easily, maintenance cost is low;
2. put the larger diameter end arc transition of taper surface, rock gas can be flow through in the situation that being subject to compared with slight drag, thereby slow down the short rate of wear of taper surface major diameter, improve the serviceable life of inner ring;
3. circular blind hole is set, can prevents that joint pin and top board from relatively moving, and further improves stability of the present invention.
Brief description of the drawings
In order to be illustrated more clearly in embodiments of the invention, will be briefly described describing the required accompanying drawing of using in the embodiment of the present invention below.Apparent, the accompanying drawing in the following describes is only some embodiment that record in the present invention, to those skilled in the art, in the situation that not paying creative work, can also, according to accompanying drawing below, obtain other accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A place enlarged drawing of Fig. 1;
Wherein, the parts title that Reference numeral is corresponding is as follows:
1-outer ring, 2-inner ring, 3-spring, 4-top board, 5-joint pin, 101-step A, 102-blind hole, 201-step B, 202-taper surface, 203-groove, the circular blind hole of 401-, 402-slot.
Embodiment
In order to make those skilled in the art understand better the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description.Apparent, embodiment described below is only the part in the embodiment of the present invention, instead of all.The embodiment recording based on the present invention, other all embodiment that those skilled in the art obtain in the situation that not paying creative work, all in the scope of protection of the invention.
Embodiment 1:
As shown in Figure 1, gas metering AND DEWATERING FOR ORIFICE STRUCTURE, comprises outer ring 1 and inner ring 2; The inside surface of outer ring 1 is provided with step A101, and the outside surface of inner ring 2 is provided with the step B201 corresponding with step A101, and inner ring 2 is arranged in outer ring 1, and step B201 coordinates with step A101; The inside surface of inner ring 2 is taper surface 202; Inner ring 2 evenly offers groove 203 near the end face of taper surface 202 smaller diameter end by circumferencial direction, and groove 203 is near one end sealing of inner ring 2 central points, and groove 203 is open away from one end of inner ring 2 central points, offers the blind hole 102 being communicated with groove 203 on outer ring 1; Also comprise spring 3, top board 4 and joint pin 5, joint pin 5 is from the interior insertion blind hole 102 of groove 203 and in the contact of the bottom of blind hole 102, one end of joint pin 5 is arranged in groove 203, two top boards 4 are connected with the two ends of spring 3 respectively, spring 3 is arranged in groove 203 with top board 4, a top board 4 holds out against one end that groove 203 seals, and another top board 4 holds out against joint pin 5 and be arranged in one end of groove 203.
In assembling process, inner ring 2 is placed in to outer ring 1, then joint pin 5 is put into groove 203, promote joint pin 5 and enter in blind hole 102.By to two top board 4 application of forces, spring 3 being compressed, top board 4 and spring 3 are positioned in groove 203, unclamp top board 4, spring 3 is upheld, and by top board 4, joint pin 5 is pressed in blind hole 102.So can be by stable inner ring 2 being fixed on outer ring.
If wear and tear in inner ring 2 or outer ring 1, can pass through top board 4 Compress Springs 3, then top board 4 and spring 3 are taken out from groove 203, extract joint pin 5 out, so inner ring 2 can be separated with outer ring 1, thereby inner ring 2 or outer ring 1 are changed.
Embodiment 2:
As shown in Figure 1, the present embodiment on the basis of embodiment 1, the larger diameter end arc transition of described taper surface 202.
The larger diameter end of taper surface 202 is inlet end, and the situation of being washed away is the most serious.In order to improve the serviceable life of inner ring 2, the larger diameter end arc transition of taper surface 202 is set, rock gas can be flow through in the situation that being subject to compared with slight drag, thereby slow down the short rate of wear of taper surface 202 major diameters, improve the serviceable life of inner ring 2.
Embodiment 3:
As shown in Figure 1, the present embodiment, on the basis of above-mentioned any one embodiment, offers circular blind hole 401 on the top board 4 contacting with described joint pin 5, and insert in circular blind hole 401 end of described joint pin 5.
This structure can prevent that joint pin 5 and top board 4 from relatively moving, and further improves stability of the present invention.
Embodiment 4:
As shown in Figure 2, the present embodiment is on the basis of above-mentioned any one embodiment, and the top of described top board 4 offers slot 402.
Slot 402 inserts for the clamping device that makes Compress Spring 3.
As mentioned above, can realize preferably the present invention.
Claims (4)
1. gas metering AND DEWATERING FOR ORIFICE STRUCTURE, is characterized in that:
Comprise outer ring (1) and inner ring (2);
The inside surface of outer ring (1) is provided with step A(101), the outside surface of inner ring (2) is provided with and step A(101) corresponding step B(201), inner ring (2) is arranged in outer ring (1), step B(201) with step A(101) coordinate;
The inside surface of inner ring (2) is taper surface (202);
Inner ring (2) evenly offers groove (203) near the end face of taper surface (202) smaller diameter end by circumferencial direction, and groove (203) is near one end sealing of inner ring (2) central point, and groove (203) is open away from one end of inner ring (2) central point,
On outer ring (1), offer the blind hole (102) being communicated with groove (203);
Also comprise spring (3), top board (4) and joint pin (5), joint pin (5) inserts blind hole (102) and in the contact of the bottom of blind hole (102) in groove (203), one end of joint pin (5) is arranged in groove (203), and two top boards (4) are connected with the two ends of spring (3) respectively
Spring (3) and top board (4) are arranged in groove (203), and a top board (4) holds out against one end of groove (203) sealing, and another top board (4) holds out against joint pin (5) and be arranged in one end of groove (203).
2. gas metering AND DEWATERING FOR ORIFICE STRUCTURE according to claim 1, is characterized in that:
The larger diameter end arc transition of described taper surface (202).
3. gas metering AND DEWATERING FOR ORIFICE STRUCTURE according to claim 1, is characterized in that:
On the top board (4) contacting with described joint pin (5), offer circular blind hole (401), insert in circular blind hole (401) end of described joint pin (5).
4. gas metering AND DEWATERING FOR ORIFICE STRUCTURE according to claim 1, is characterized in that:
The top of described top board (4) offers slot (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358921.5A CN104121952A (en) | 2014-07-27 | 2014-07-27 | Orifice plate structure for natural gas metering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358921.5A CN104121952A (en) | 2014-07-27 | 2014-07-27 | Orifice plate structure for natural gas metering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121952A true CN104121952A (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358921.5A Pending CN104121952A (en) | 2014-07-27 | 2014-07-27 | Orifice plate structure for natural gas metering |
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| Country | Link |
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| CN (1) | CN104121952A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989997A (en) * | 2019-04-22 | 2019-07-09 | 西安航空职业技术学院 | A kind of flange bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2752731Y (en) * | 2004-12-12 | 2006-01-18 | 范兴宽 | Micro-arc oxidation generation alumina ceramic orificeplate |
| CN201580992U (en) * | 2009-10-13 | 2010-09-15 | 自贡兆强密封制品实业有限公司 | Combined orifice plate |
| CN202002679U (en) * | 2010-12-30 | 2011-10-05 | 成都金陵阀门有限责任公司 | Flange hole plate |
| CN202273381U (en) * | 2011-08-29 | 2012-06-13 | 姚喜智 | Splice floor structure |
| CN203287055U (en) * | 2013-06-05 | 2013-11-13 | 成都立创模具有限公司 | Pore plate for measuring natural gas |
| CN103671392A (en) * | 2013-11-11 | 2014-03-26 | 潘新章 | Furniture connecting piece |
-
2014
- 2014-07-27 CN CN201410358921.5A patent/CN104121952A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2752731Y (en) * | 2004-12-12 | 2006-01-18 | 范兴宽 | Micro-arc oxidation generation alumina ceramic orificeplate |
| CN201580992U (en) * | 2009-10-13 | 2010-09-15 | 自贡兆强密封制品实业有限公司 | Combined orifice plate |
| CN202002679U (en) * | 2010-12-30 | 2011-10-05 | 成都金陵阀门有限责任公司 | Flange hole plate |
| CN202273381U (en) * | 2011-08-29 | 2012-06-13 | 姚喜智 | Splice floor structure |
| CN203287055U (en) * | 2013-06-05 | 2013-11-13 | 成都立创模具有限公司 | Pore plate for measuring natural gas |
| CN103671392A (en) * | 2013-11-11 | 2014-03-26 | 潘新章 | Furniture connecting piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989997A (en) * | 2019-04-22 | 2019-07-09 | 西安航空职业技术学院 | A kind of flange bearing |
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Application publication date: 20141029 |
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| RJ01 | Rejection of invention patent application after publication |