CN103511314A - Surging sensor - Google Patents
Surging sensor Download PDFInfo
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- CN103511314A CN103511314A CN201310465533.2A CN201310465533A CN103511314A CN 103511314 A CN103511314 A CN 103511314A CN 201310465533 A CN201310465533 A CN 201310465533A CN 103511314 A CN103511314 A CN 103511314A
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- connecting sleeve
- surging
- housing
- sensor
- induction piece
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- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a surging sensor which comprises a shell body, an induction piece, a nut, a connecting sleeve and a limiting switch. One end of the shell is connected with a static pressure hole in the wall of an inlet pipe of a fan, the induction piece is arranged inside the shell body and arranged on a clamping opening of the shell body, the connecting sleeve is fastened with the other end of the shell body through the nut, and the limiting switch is connected with the connecting sleeve through a thread. The surging sensor can effectively induce the changes of the inlet pressure of the fan, the sensitivity is high, the distance between the limiting switch and the induction piece is adjustable, the surging sensor is suitable for pressure fluctuation of different amplitudes, the surging sensor can be suitable for fans of any types or other operation working conditions, surging can be found in good time, and serious damage accidents can be avoided.
Description
Technical field
The present invention relates to surging sensor, the sensor specifically whether occurring for surveying surge on a kind of high-speed centrifugal fan.
Background technique
Surge is fan outlet pressure rise to a certain extent time, a kind of unstable period there will be, and gas flow and the exhaust pressure of blower fan periodically fluctuate, and frequency is low, amplitude is large, and causes the judder of machine.The harm of surge is very large, easily makes impeller and spiral case bump, and destroys oil film stable, damages bearing, so should give, avoids.
In prior art, conventionally by measuring the vibration displacement of axle, judge whether surge.This method only has surge to develop into certain severe degree and just has effect, cannot just can find in time at the surge initial stage.So some infringements that surge is brought cannot be prevented in time, often can cause the faults such as impeller breaks, bearing wear.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, thereby a kind of surging sensor be provided,
It is simple in structure, surveys sensitively, and precision is high, can avoid serious Injury accident.
According to technological scheme provided by the invention, surging sensor comprises housing, induction piece, nut, connecting sleeve and limit switch; Described housing one end is connected with the baroport on blower fan import tube wall, and described induction piece is positioned at enclosure interior, and is located on the bayonet socket of housing; Described connecting sleeve is fastening by the other end of nut and housing, shown in limit switch by screw thread, be connected with connecting sleeve.
As a further improvement on the present invention, described housing is provided with 4 vents, and vent is uniformly distributed in a circumferential direction, and making the pressure on induction piece is barometric pressure.
As a further improvement on the present invention, on described connecting sleeve with internal thread.
Compared with the prior art the present invention has the following advantages:
The present invention is simple in structure, compact, reasonable; Variation that can actual induction blower fan inlet pressure, highly sensitive, and the distance of limit switch and induction piece can regulate, and adapts to the pressure surge of various amplitude; No matter for the blower fan of which kind of model, or other operating conditions, can be suitable for; And can find early surge, avoid serious Injury accident.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Embodiment
The present invention is below further described in connection with accompanying drawing:
As shown in Figure 1: the present invention includes housing 1, induction piece 2, big nut 3, connecting sleeve 4 and limit switch 5.Described housing 1 one end is connected the pressure conduction of ，Jiang blower fan inlet to sensor internal with baroport on blower fan import tube wall.Described induction piece 2 is positioned at housing 1 inside, by self gravity, drops on the bayonet socket of housing 1.Described connecting sleeve 4 is fastening by big nut and housing 1, and connecting sleeve 4 is simultaneously with internal thread, shown in limit switch 5 by screw thread, be connected with connecting sleeve 4.Meanwhile, the distance of limit switch 5 and induction piece 2 can be regulated by rotation, to adjust the precision of sensor.
Further, have 4 vent 1-2 on housing, vent is uniformly distributed in a circumferential direction, and making the pressure on induction piece is barometric pressure.
The pressure of induction piece of the present invention 2 belows is blower fan inlet pressure, and top is atmospheric pressure.Under nominal situation, due to the resistance of inlet filter, blower fan import is negative pressure.When surge occurs, the fluctuation of inlet pressure large amplitude, just there will be malleation, and when the pressure of induction piece 2 belows is greater than the barometric pressure of top, induction piece 2 can takeoff, thereby touches limit switch 5, and limit switch 5 is output signal thus.This sensor can actual induction blower fan inlet pressure variation, highly sensitive, and limit switch 5 can regulate with the distance of induction piece 2, adapts to the pressure surge of various amplitude.No matter for the blower fan of which kind of model, or other operating conditions, can be suitable for.Can find early surge, avoid serious Injury accident.
Claims (3)
1. a surging sensor, is characterized in that: comprise housing (1), induction piece (2), nut (3), connecting sleeve (4) and limit switch (5); Described housing (1) one end is connected with the baroport on blower fan import tube wall, and described induction piece (2) is positioned at housing (1) inside, and is located on the bayonet socket of housing (1); Described connecting sleeve (4) is fastening by nut (3) and housing (1) the other end, and described limit switch (5) is connected with connecting sleeve (4) by screw thread.
2. a kind of surging sensor as claimed in claim 1, is characterized in that: described housing (1) is provided with 4 vents (1-2), and vent (1-2) is uniformly distributed in a circumferential direction.
3. a kind of surging sensor as claimed in claim 1, is characterized in that: described connecting sleeve (4) is upper with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465533.2A CN103511314A (en) | 2013-10-08 | 2013-10-08 | Surging sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465533.2A CN103511314A (en) | 2013-10-08 | 2013-10-08 | Surging sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511314A true CN103511314A (en) | 2014-01-15 |
Family
ID=49894580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310465533.2A Pending CN103511314A (en) | 2013-10-08 | 2013-10-08 | Surging sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389804A (en) * | 2014-11-20 | 2015-03-04 | 哈尔滨广瀚燃气轮机有限公司 | Surge protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040037693A1 (en) * | 2002-08-23 | 2004-02-26 | York International Corporation | System and method for detecting rotating stall in a centrifugal compressor |
| CN202883426U (en) * | 2012-11-14 | 2013-04-17 | 重庆江增船舶重工有限公司 | Centrifugal compressor surge indicator |
| US20130142617A1 (en) * | 2011-12-02 | 2013-06-06 | Nuovo Pignone S.P.A. | Method and equipment for detecting rotating stall and compressor |
| CN203201847U (en) * | 2013-04-28 | 2013-09-18 | 大唐安阳发电厂 | Blower surging measuring device |
| CN203584858U (en) * | 2013-10-08 | 2014-05-07 | 无锡杰尔压缩机有限公司 | Surge sensor |
-
2013
- 2013-10-08 CN CN201310465533.2A patent/CN103511314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040037693A1 (en) * | 2002-08-23 | 2004-02-26 | York International Corporation | System and method for detecting rotating stall in a centrifugal compressor |
| US20130142617A1 (en) * | 2011-12-02 | 2013-06-06 | Nuovo Pignone S.P.A. | Method and equipment for detecting rotating stall and compressor |
| CN202883426U (en) * | 2012-11-14 | 2013-04-17 | 重庆江增船舶重工有限公司 | Centrifugal compressor surge indicator |
| CN203201847U (en) * | 2013-04-28 | 2013-09-18 | 大唐安阳发电厂 | Blower surging measuring device |
| CN203584858U (en) * | 2013-10-08 | 2014-05-07 | 无锡杰尔压缩机有限公司 | Surge sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389804A (en) * | 2014-11-20 | 2015-03-04 | 哈尔滨广瀚燃气轮机有限公司 | Surge protection device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140115 |