CN103603995A - Throttling and depressurizing combined device of scallop-hole throttle valve - Google Patents
Throttling and depressurizing combined device of scallop-hole throttle valve Download PDFInfo
- Publication number
- CN103603995A CN103603995A CN201310560049.8A CN201310560049A CN103603995A CN 103603995 A CN103603995 A CN 103603995A CN 201310560049 A CN201310560049 A CN 201310560049A CN 103603995 A CN103603995 A CN 103603995A
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- China
- Prior art keywords
- throttle valve
- rectifier
- valve
- connecting tube
- throttle
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a throttling and depressurizing combined device of a scallop-hole throttle valve. The throttling and depressurizing combined device comprises the throttle valve, a connecting pipe and a rectifier, the connecting pipe is located between the throttle valve and the rectifier, one end of the connecting pipe is fixedly connected with a right flange through bolts while the other end of the same is connected with the rectifier fixedly through bolts, a throttle-valve valve plate can rotate, the throttle valve comprises a left flange, the throttle-valve valve plate and the right flange, the left flange and the right flange are located on two sides of the throttle-valve valve plate respectively, the left flange is connected and fixed with the throttle-valve valve plate, and the right flange is also connected and fixed with the throttle-valve valve plate. The throttling and depressurizing combined device is outstanding in depressurizing and rectifying effect, outlet air flow is even and orderly, a straight pipe is not required for stabilizing a flow field, pressure and temperature measurement can be performed directly, or the throttling and depressurizing combined device is directly connected with a compression inlet, and site requirements of fan testing are lowered greatly.
Description
Technical field
The present invention relates to a kind of device that regulates air-flow, especially, in blower fan is measured, air-flow is carried out to the device of step-down current stabilization, be specially the reducing pressure by regulating flow combination unit that uses fan shaped borehole throttle valve.
Background technique
In the application of fan test, usually need the incoming flow of negative pressure, contribute to like this to reduce the required air horsepower of blower fan, can reduce the hardware requirement of test.For the blower fan of some superhigh powers, conventionally adopt such method to test.
In prior art, conventionally adopt gate valve to carry out step-down throttling, when the pressure of required decline is larger, air-flow tends to very disorderly, thereby need one section of very long straight pipeline that disorderly air-flow is become evenly again, avoid the measurement of follow-up blower fan to produce adverse influence.Also have by honeycomb rectifier and carry out uniform air flow, can under to a certain degree, shorten the length of straight pipeline, but effect is still limited.The required pressure of fan test is less, and the air-flow after step-down is just more disorderly, and required straight length is longer, just higher to the requirement in place.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of reducing pressure by regulating flow combination unit of delthyrium throttle valve is provided, this reducing pressure by regulating flow combination unit depressurization and rectification effect is excellent, the air-flow of outlet is uniform sequential, without straight length with steady flow condition, can directly carry out pressure, thermometry, or directly connect compressor inlet, greatly reduce the site requirements of fan test.
According to technological scheme provided by the invention, the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve comprises throttle valve, connecting tube, rectifier; Described connecting tube is between throttle valve and rectifier, and one end of connecting tube is fixedly connected with right flange by bolt; The other end of connecting tube is fixedly connected with rectifier by bolt; Described throttle valve valve plate can rotate; Described throttle valve comprises left flange, throttle valve valve plate and right flange, and left flange and right flange lay respectively at throttle valve valve plate both sides, and described left flange and throttle valve valve plate are connected and fixed; Described right flange and throttle valve valve plate are connected and fixed.
As a further improvement on the present invention, on described throttle valve valve plate, along even circumferential, be distributed with several the first fan shaped boreholes, on right flange, along even circumferential, be distributed with several second fan shaped boreholes corresponding with the first fan hole.
As a further improvement on the present invention, the cylindrical end face of described rectifier is provided with densely covered through hole, between described through hole, is not communicated with mutually.
As a further improvement on the present invention, described the first fan shaped borehole is 6-12; Described the second fan shaped borehole is 6-12.
As a further improvement on the present invention, described throttle valve, connecting tube, rectifier inner diameter D are identical; The length of described connecting tube is L1, and the proportionate relationship between the length L 1 of described throttle valve, connecting tube, rectifier inner diameter D and connecting tube is: 0.5D≤L1≤D.
As a further improvement on the present invention, the through-hole diameter of described rectifier is d, and the internal diameter of rectifier is D; The through-hole diameter d of described rectifier and the proportionate relationship between the inner diameter D of rectifier are: 0.01D≤d≤0.02D;
As a further improvement on the present invention, the length L 2 of described rectifier, the through-hole diameter of rectifier is d, the proportionate relationship between the length L 2 of described rectifier and the through-hole diameter d of rectifier is: 8d≤L2≤10d.
Compared with the prior art the present invention has the following advantages:
The present invention is simple in structure, compact, reasonable.The circulating area being comprised of several fan shaped boreholes distributes along even circumferential, airflow passes throttle valve, and in the time of effective step-down, air turbulence degree significantly reduces, and enters rectifier subsequently through connecting tube.Connect the small through hole of cylindrical body end face, in stream, large whirlpool fragmentation is reformed in the future, and the little whirlpool after fragmentation enters after small through hole, disorderly air-flow can be reformed in order, make even flow field consistent.Depressurization and rectification effect of the present invention is excellent, and the air-flow of outlet is uniform sequential, without straight length, with steady flow condition, can directly carry out pressure, thermometry, or directly connect compressor inlet, has greatly reduced the site requirements of fan test.
Accompanying drawing explanation
Fig. 1 is the plan view of structure of the present invention.
Fig. 2 is the structural representation of throttle valve of the present invention.
Fig. 3 is the structural representation of rectifier of the present invention.
Embodiment
The present invention is below further described in connection with the embodiment in accompanying drawing:
As shown in Figure 1-Figure 3, comprise that throttle valve 1, throttle valve valve plate 11, the first fan shaped borehole 12, right flange 13, the second fan shaped borehole 14, left flange 15, connecting tube 2, rectifier 3, through hole 31, throttle valve internal diameter, connecting tube internal diameter, rectifier inner diameter D, through-hole diameter d, the length L 1 of connecting tube are, the length L 2 of rectifier.
Described connecting tube 2 is positioned at the downstream of throttle valve 1, and one end of connecting tube 2 is fixedly connected with right flange 13 by bolt.Described connecting tube 2 is between throttle valve 1 and rectifier 3, and described connecting tube 2 is positioned at the downstream of described throttle valve 1, and described rectifier 3 is positioned at the downstream of described connecting tube, and the other end of connecting tube 2 is fixedly connected with rectifier 3 by bolt.
Described throttle valve 1 comprises left flange 15, throttle valve valve plate 11 and right flange 13, and left flange 15 lays respectively at throttle valve valve plate 11 both sides with right flange 13, and described left flange 15 is connected and fixed with throttle valve valve plate 11; Described right flange 13 is connected and fixed with throttle valve valve plate 11; On throttle valve valve plate 11, be provided with 8 the first fan shaped boreholes 12, right flange 13 is provided with 8 second fan shaped boreholes 14 corresponding with the first fan shaped borehole 12, and throttle valve valve plate 11 is rotatable.
The cylindrical end face of described rectifier 3 is provided with the through hole 31 that gathers, and between through hole 31, is not communicated with mutually.Described throttle valve 1, connecting tube 2, rectifier 3 inner diameter D are identical, are 500mm.Connecting tube 2 length L 1 are 300mm.
The length of described connecting tube is L1, and the proportionate relationship between the length L 1 of described throttle valve, connecting tube, rectifier inner diameter D and connecting tube is: 0.5D≤L1≤D.
Through hole 31 diameters of described rectifier are that d is 7mm, and rectifier 3 length L 2 are 60mm.The through-hole diameter of described rectifier is d, and the internal diameter of rectifier is D; The through-hole diameter d of described rectifier and the proportionate relationship between the inner diameter D of rectifier are: 0.01D≤d≤0.02D;
The length L 2 of described rectifier, the through-hole diameter of rectifier is d, the proportionate relationship between the length L 2 of described rectifier and the through-hole diameter d of rectifier is: 8d≤L2≤10d.
The circulating area that 8 fan shaped boreholes of throttle valve 1 of the present invention form distributes along even circumferential, airflow passes throttle valve 1, and in the time of effective step-down, air turbulence degree significantly reduces, and enters rectifier 3 subsequently through connecting tube 2.Connect the through hole 31 of rectifier 3 cylindrical body end faces, in stream, large whirlpool fragmentation is reformed in the future, and the little whirlpool after fragmentation enters after through hole 31, experiences sufficiently long straight length, disorderly air-flow can be reformed in order, make even flow field consistent.Depressurization and rectification effect of the present invention is excellent, and the air-flow of outlet is uniform sequential, without straight length, with steady flow condition, can directly carry out pressure, thermometry, or directly connect compressor inlet, has greatly reduced the site requirements of fan test.
Claims (7)
1. the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve, is characterized in that: comprise throttle valve (1), connecting tube (2), rectifier (3); Described connecting tube (2) is positioned between throttle valve (1) and rectifier (3), and one end of connecting tube (2) is fixedly connected with right flange (13) by bolt; The other end of connecting tube (2) is fixedly connected with rectifier (3) by bolt; Described throttle valve valve plate (11) can rotate; Described throttle valve (1) comprises left flange (15), throttle valve valve plate (11) and right flange (13), left flange (15) lays respectively at throttle valve valve plate (11) both sides with right flange (13), and described left flange (15) is connected and fixed with throttle valve valve plate (11); Described right flange (13) is connected and fixed with throttle valve valve plate (11).
2. the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve as claimed in claim 1, is characterized in that:
Described throttle valve valve plate (1) is upper is distributed with several the first fan shaped boreholes (12) along even circumferential, and right flange (15) is upper is distributed with several second fan shaped boreholes (14) corresponding with the first fan hole along even circumferential.
3. the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve as claimed in claim 1, is characterized in that: the cylindrical end face of described rectifier (3) is provided with densely covered through hole (31), and described through hole is not communicated with mutually between (31).
4. the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve as claimed in claim 1, is characterized in that: described the first fan shaped borehole (12) is 6-12; Described the second fan shaped borehole (14) is 6-12.
5. the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve as claimed in claim 1, is characterized in that: described throttle valve (1), connecting tube (2), rectifier (3) inner diameter D are identical; The length of described connecting tube is (L1), and the proportionate relationship between the length (L1) of described internal diameter (D) and connecting tube is: 0.5D≤L1≤D.
6. the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve as claimed in claim 1, is characterized in that:
The through-hole diameter of described rectifier is (d), and the internal diameter of rectifier is (D); Proportionate relationship between the internal diameter (D) of the through-hole diameter of described rectifier (d) and rectifier is: 0.01D≤d≤0.02D.
7. the reducing pressure by regulating flow combination unit of fan shaped borehole throttle valve as claimed in claim 1, is characterized in that:
The length of described rectifier (L2), the through-hole diameter of rectifier is (d), the proportionate relationship between the through-hole diameter (d) of the length of described rectifier (L2) and rectifier is: 8d≤L2≤10d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560049.8A CN103603995A (en) | 2013-11-12 | 2013-11-12 | Throttling and depressurizing combined device of scallop-hole throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560049.8A CN103603995A (en) | 2013-11-12 | 2013-11-12 | Throttling and depressurizing combined device of scallop-hole throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103603995A true CN103603995A (en) | 2014-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310560049.8A Pending CN103603995A (en) | 2013-11-12 | 2013-11-12 | Throttling and depressurizing combined device of scallop-hole throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103603995A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769064A (en) * | 2016-12-24 | 2017-05-31 | 中国科学院工程热物理研究所 | A kind of orifice-plate type back pressure regulator device |
| CN111895175A (en) * | 2020-07-17 | 2020-11-06 | 浙江理工大学 | Mobile self-adaptive rectifying device for process valve |
| CN112197466A (en) * | 2020-10-13 | 2021-01-08 | 陈江枫 | Thermal induction partial pressure type energy-saving regulating valve of heat pump unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307830A (en) * | 1993-05-18 | 1994-05-03 | Welker Engineering Company | Flow distribution method and apparatus reducing downstream turbulence |
| US20090277204A1 (en) * | 2008-05-07 | 2009-11-12 | Airbus Deutschland Gmbh | Adjustable Orifice For Use In An Air Conditioning System, In Particular An Aircraft Air Conditioning System |
| CN201535390U (en) * | 2009-06-19 | 2010-07-28 | 江苏神通阀门股份有限公司 | Silent pressure-regulating valve bank |
| CN202927240U (en) * | 2012-11-16 | 2013-05-08 | 无锡智能自控工程股份有限公司 | Butterfly-valve noise-attenuating device |
| CN103291943A (en) * | 2013-06-17 | 2013-09-11 | 无锡杰尔压缩机有限公司 | Throttle dropping equipment |
| CN203488487U (en) * | 2013-09-10 | 2014-03-19 | 无锡杰尔压缩机有限公司 | Throttling depressurization combination device with scallop hole throttling valve |
-
2013
- 2013-11-12 CN CN201310560049.8A patent/CN103603995A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307830A (en) * | 1993-05-18 | 1994-05-03 | Welker Engineering Company | Flow distribution method and apparatus reducing downstream turbulence |
| US20090277204A1 (en) * | 2008-05-07 | 2009-11-12 | Airbus Deutschland Gmbh | Adjustable Orifice For Use In An Air Conditioning System, In Particular An Aircraft Air Conditioning System |
| CN201535390U (en) * | 2009-06-19 | 2010-07-28 | 江苏神通阀门股份有限公司 | Silent pressure-regulating valve bank |
| CN202927240U (en) * | 2012-11-16 | 2013-05-08 | 无锡智能自控工程股份有限公司 | Butterfly-valve noise-attenuating device |
| CN103291943A (en) * | 2013-06-17 | 2013-09-11 | 无锡杰尔压缩机有限公司 | Throttle dropping equipment |
| CN203488487U (en) * | 2013-09-10 | 2014-03-19 | 无锡杰尔压缩机有限公司 | Throttling depressurization combination device with scallop hole throttling valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769064A (en) * | 2016-12-24 | 2017-05-31 | 中国科学院工程热物理研究所 | A kind of orifice-plate type back pressure regulator device |
| CN106769064B (en) * | 2016-12-24 | 2019-06-18 | 中国科学院工程热物理研究所 | A kind of orifice-plate type back pressure regulator device |
| CN111895175A (en) * | 2020-07-17 | 2020-11-06 | 浙江理工大学 | Mobile self-adaptive rectifying device for process valve |
| CN112197466A (en) * | 2020-10-13 | 2021-01-08 | 陈江枫 | Thermal induction partial pressure type energy-saving regulating valve of heat pump unit |
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Application publication date: 20140226 |