CN104990603A - Throttling mechanism - Google Patents
Throttling mechanism Download PDFInfo
- Publication number
- CN104990603A CN104990603A CN201510476940.2A CN201510476940A CN104990603A CN 104990603 A CN104990603 A CN 104990603A CN 201510476940 A CN201510476940 A CN 201510476940A CN 104990603 A CN104990603 A CN 104990603A
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- orifice plate
- flange
- panels
- throttle mechanism
- fluid
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Abstract
The invention discloses a throttling mechanism comprising an orifice plate and a pipe section used for connecting a metering device with a pipeline; the convey orifice plate is fixed in the pipe section; the pipe section comprises two flanges having axis on a same line; the two flanges are connected through a connecting bolt; the orifice plate is clamped between the two flanges; each flange is provided with a pressure leading tube fixed between the orifice plate and each free end; the orifice plate is arranged between the two pressure leading tubes; the pressure leading tubes are connected with a fluid flow space corresponding to the flanges; the bottom of a random flange is fixedly connected with a water outlet pipe; an outlet of the water outlet pipe is also connected with a drain valve. The metering throttle pipe section is simple in structure, has excellent interchangeability aiming at different fluid states, and has small resistance when the fluid passes, and pressure sampling accuracy is good.
Description
Technical field
The present invention relates to fluid-transferring pipe piece apparatus field, particularly relate to a kind of throttle mechanism.
Background technology
Orifice flowmeter is the flow measurement device without scale, it and pneumatic, electric differential pressure transmitter or bi-bellow differential pressure transmitter support the use, usually by transmitter, this pressure reduction signal is converted to the output signal of ratio, again by secondary instrument or regulator, record is carried out to measured flow, instruction or adjustment.The principle of orifice flowmeter is for load onto the throttling element such as orifice plate or nozzle at pipe interior, and because the aperture of throttling element is less than internal diameter of the pipeline, when fluid flows through throttling element, the sudden contraction of flow velocity cross section, flow velocity is accelerated.The static pressure of throttling element rear end fluid reduces, so produce static pressure difference before and after throttling element, has the numerical relation determined between the fluid flow that this static pressure is crossed.Measure the differential pressure before and after throttling element with differential pressure transmitter, realize the measurement to flow.
Although orifice flowmeter uses widely because its structure simply obtains, because it is comparatively large to the drag effects of pipeline, according to the fluid state parameter of reality, adopts suitable throttling form, have the economic target that interests lift line fluid is carried.
Summary of the invention
Although use widely because its structure simply obtains for above described holes flowmeter, but because it is larger to the drag effects of pipeline, according to the fluid state parameter of reality, adopt suitable throttling form, the problem of the economic target having interests lift line fluid to carry, the invention provides a kind of throttle mechanism.
For the problems referred to above, a kind of throttle mechanism provided by the invention reaches goal of the invention by following technical essential: a kind of throttle mechanism, the pipeline section comprising orifice plate and be connected with pipeline for this measuring apparatus, conveying orifice plate is fixed in described pipeline section, described pipeline section is two panels axis flange on the same line, two panels flange is connected by coupling bolt, described orifice plate is clamped between two panels flange, and every sheet flange is all fixed with at orifice plate and the pressure guiding pipe separately between free end, and orifice plate is between the pressure guiding pipe described in two, described pressure guiding pipe communicates with the fluid free air space of companion flange, the bottom of any one flange is also fixedly connected with the rising pipe communicated with the fluid free air space of this flange, and the endpiece of described rising pipe is also connected with drain valve.
In above structure, by all arranging pressure guiding pipe on two panels flange, orifice plate is clamped in the version between two panels flange, after absent-mindedness coupling bolt can be made, the fluid flow state in pipeline is used according to reality, change different orifice plates and not only meet the needs of pressure metering to pressure differential in two pressure guiding pipes to make the present invention, the resistance to flow of little increase line fluid can be measured to the greatest extent simultaneously.
Above structure in use, the front end of one end and fluid line of being provided with rising pipe is welded to connect, simultaneously preferred rising pipe is arranged on vertical direction, like this, when the present invention is used for the gas dosing as condensation rock gas or compressed-air line, the condensate water or other liquid mediums that are enriched in orifice plate front end can be discharged by rising pipe smoothly, so not only be beneficial to the resistance reducing pipeline, when being beneficial to fluid flow through orifices plate simultaneously on pipeline section the homogeneity of flow state, be beneficial to the accuracy of pressure transducer by pressure guiding pipe pressure.
Further technical scheme is:
Time in a fluid containing hard impurity, for reducing above impurity when flowing through orifice plate and the interaction strength of orifice plate, be beneficial to measuring accuracy, described orifice plate is also provided with center pit, the two ends of described center pit are provided with circular arc chamfering.
In a fluid containing hard impurity time, for reduce above impurity when flowing through orifice plate and the interaction of orifice plate on the impact of aerial cross sectional shape that orifice plate circulates, described orifice plate is also provided with center pit, and described center pit is circular isometrical hole.
Static seal effect for the benefit of between orifice plate and flange, the joint face of described orifice plate and two panels flange is provided with O-ring seal.
For improving above static seal effect further, the joint face of described orifice plate and two panels flange is provided with tongue-and-groove.
The present invention has following beneficial effect:
1, structure of the present invention is simple, by all arranging pressure guiding pipe on two panels flange, orifice plate is clamped in the version between two panels flange, after absent-mindedness coupling bolt can be made, the fluid flow state in pipeline is used according to reality, change different orifice plates and not only meet the needs of pressure metering to pressure differential in two pressure guiding pipes to make the present invention, the resistance to flow of little increase line fluid can be measured to the greatest extent simultaneously.
2, above structure in use, the front end of one end and fluid line of being provided with rising pipe is welded to connect, simultaneously preferred rising pipe is arranged on vertical direction, like this, when the present invention is used for the gas dosing as condensation rock gas or compressed-air line, the condensate water or other liquid mediums that are enriched in orifice plate front end can be discharged by rising pipe smoothly, so not only be beneficial to the resistance reducing pipeline, when being beneficial to fluid flow through orifices plate simultaneously on pipeline section the homogeneity of flow state, be beneficial to the accuracy of pressure transducer by pressure guiding pipe pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of throttle mechanism of the present invention specific embodiment.
Label shown in accompanying drawing is respectively: 1, flange, and 2, pressure guiding pipe, 3, coupling bolt, 4, center pit, 5, orifice plate, 6, rising pipe, 7, drain valve.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples.
Embodiment 1:
As shown in Figure 1, a kind of throttle mechanism, the pipeline section comprising orifice plate 5 and be connected with pipeline for this measuring apparatus, conveying orifice plate 5 is fixed in described pipeline section, described pipeline section is two panels axis flange 1 on the same line, two panels flange 1 is connected by coupling bolt 3, described orifice plate 5 is clamped between two panels flange 1, and every sheet flange 1 is all fixed with at orifice plate 5 and the pressure guiding pipe 2 separately between free end, and orifice plate 5 is between the pressure guiding pipe 2 described in two, described pressure guiding pipe 2 communicates with the fluid free air space of companion flange 1; The bottom of any one flange 1 is also fixedly connected with the rising pipe 6 communicated with the fluid free air space of this flange 1, and the endpiece of described rising pipe 6 is also connected with drain valve 7.
In the present embodiment, by all arranging pressure guiding pipe 2 on two panels flange 1, orifice plate 5 is clamped in the version between two panels flange 1, after absent-mindedness coupling bolt 3 can be made, the fluid flow state in pipeline is used according to reality, change different orifice plates 5 and not only meet the needs of pressure metering to pressure differential in two pressure guiding pipes 2 to make the present invention, the resistance to flow of little increase line fluid can be measured to the greatest extent simultaneously.
In the present embodiment, rising pipe 6 is for being welded in the straight length of any one flange 1 lower end, and the axis of this straight length is at vertical direction.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, time in a fluid containing hard impurity, for reducing above impurity when flowing through orifice plate 5 and the interaction strength of orifice plate 5, be beneficial to measuring accuracy, described orifice plate 5 is also provided with center pit 4, and the two ends of described center pit 4 are provided with circular arc chamfering.
In a fluid containing hard impurity time, for reduce above impurity when flowing through orifice plate 5 and the interaction of orifice plate 5 on the impact of aerial cross sectional shape that orifice plate 5 circulates, described orifice plate 5 is also provided with center pit 4, and described center pit 4 is circular isometrical hole.
Static seal effect for the benefit of between orifice plate 5 and flange 1, described orifice plate 5 and the joint face of two panels flange 1 are provided with O-ring seal.
For improving above static seal effect further, described orifice plate 5 and the joint face of two panels flange 1 are provided with tongue-and-groove.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (5)
1. a throttle mechanism, the pipeline section comprising orifice plate (5) and be connected with pipeline for this measuring apparatus, conveying orifice plate (5) is fixed in described pipeline section, it is characterized in that, described pipeline section is two panels axis flange on the same line (1), two panels flange (1) is connected by coupling bolt (3), described orifice plate (5) is clamped between two panels flange (1), and every sheet flange (1) is all fixed with the pressure guiding pipe (2) be positioned between orifice plate (5) and respective free end, and orifice plate (5) is positioned between the pressure guiding pipe (2) described in two, described pressure guiding pipe (2) communicates with the fluid free air space of companion flange (1), the bottom of any one flange (1) is also fixedly connected with the rising pipe (6) communicated with the fluid free air space of this flange (1), and the endpiece of described rising pipe (6) is also connected with drain valve (7).
2. a kind of throttle mechanism according to claim 1, is characterized in that, described orifice plate (5) is also provided with center pit (4), and the two ends of described center pit (4) are provided with circular arc chamfering.
3. a kind of throttle mechanism according to claim 1, is characterized in that, described orifice plate (5) is also provided with center pit (4), and described center pit (4) is circular isometrical hole.
4. a kind of throttle mechanism according to claim 1, is characterized in that, described orifice plate (5) and the joint face of two panels flange (1) are provided with O-ring seal.
5. a kind of throttle mechanism according to claim 1, is characterized in that, described orifice plate (5) and the joint face of two panels flange (1) are provided with tongue-and-groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476940.2A CN104990603A (en) | 2015-08-07 | 2015-08-07 | Throttling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476940.2A CN104990603A (en) | 2015-08-07 | 2015-08-07 | Throttling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104990603A true CN104990603A (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476940.2A Pending CN104990603A (en) | 2015-08-07 | 2015-08-07 | Throttling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104990603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151811A (en) * | 2018-02-07 | 2018-06-12 | 承德石油高等专科学校 | A kind of novel central symmetry multi-hole orifice flow throttling set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201697644U (en) * | 2010-06-28 | 2011-01-05 | 江阴市节流装置厂有限公司 | Integrated differential pressure flowmeter |
| US7942139B1 (en) * | 2005-06-08 | 2011-05-17 | Mile Edge Plus Inc | Ring insert for an air intake conduit for an internal combustion engine |
| CN202083421U (en) * | 2011-05-25 | 2011-12-21 | 河南百川畅银实业有限公司 | Flow rate measuring orifice plate and collecting well flow rate measuring and throttling device |
| CN202869570U (en) * | 2012-10-27 | 2013-04-10 | 江阴市神州测控设备有限公司 | Integrated orifice plate flowmeter |
| CN203422122U (en) * | 2013-08-26 | 2014-02-05 | 淮南矿业(集团)有限责任公司 | Throttling device |
-
2015
- 2015-08-07 CN CN201510476940.2A patent/CN104990603A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7942139B1 (en) * | 2005-06-08 | 2011-05-17 | Mile Edge Plus Inc | Ring insert for an air intake conduit for an internal combustion engine |
| CN201697644U (en) * | 2010-06-28 | 2011-01-05 | 江阴市节流装置厂有限公司 | Integrated differential pressure flowmeter |
| CN202083421U (en) * | 2011-05-25 | 2011-12-21 | 河南百川畅银实业有限公司 | Flow rate measuring orifice plate and collecting well flow rate measuring and throttling device |
| CN202869570U (en) * | 2012-10-27 | 2013-04-10 | 江阴市神州测控设备有限公司 | Integrated orifice plate flowmeter |
| CN203422122U (en) * | 2013-08-26 | 2014-02-05 | 淮南矿业(集团)有限责任公司 | Throttling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151811A (en) * | 2018-02-07 | 2018-06-12 | 承德石油高等专科学校 | A kind of novel central symmetry multi-hole orifice flow throttling set |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
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| RJ01 | Rejection of invention patent application after publication |