CN203201847U - Blower surging measuring device - Google Patents
Blower surging measuring device Download PDFInfo
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- CN203201847U CN203201847U CN 201320227084 CN201320227084U CN203201847U CN 203201847 U CN203201847 U CN 203201847U CN 201320227084 CN201320227084 CN 201320227084 CN 201320227084 U CN201320227084 U CN 201320227084U CN 203201847 U CN203201847 U CN 203201847U
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Abstract
The utility model discloses an axial flow blower surging measuring device and belongs to the field of draught fan measuring devices. The device comprises a measuring probe, a sensor is connected with the measuring probe, a measuring signal is transmitted into a system computer through an analog-digital conversion device, a measuring probe driving and reversing device is arranged, and a probe depth display device is arranged on the driving and reversing device. The probe driving and reversing device is arranged on the blower surging measuring device, the probe depth display device is arranged on the driving and reversing device, the flexibility of measuring is increased, and the accuracy of the measuring is improved.
Description
Technical field
The utility model relates to a kind of surge measurement device, and particularly a kind of axial flow fan surge measurement device belongs to blower fan measuring element field.
Background technique
Axial-flow blower is one of visual plant of electricity power enterprise, the significantly fluctuation of flow, total head and electric current also may take place in axial-flow blower when moving in the unstable period district, air-flow can take place back and forth to flow, blower fan and pipeline can produce strong vibration, noise significantly increases, and this unstable period is called surge.The generation of surge can destroy the equipment of blower fan and pipeline, threatens the Security of blower fan and whole system.At present the main blower fan of power plant all is equipped with the surge measuring point, and the reason that surge produces is: on pressure flow diagram, blower pressure peak K corresponding flow is Qx, on the right side that K order along with the decline of blast, flow increase; Blast increases, and flow reduces.Along with the minimizing of flow, blast reduces on the left side that K is ordered.If pipe resistance characteristic curve and blower fan Q-H characteristic curve intersect at the A point, then the blast of blower fan is Hn, and air quantity is Q.If load increases, air quantity increase then blast reduces, and the operation point of blower fan moves on to the B point; If load reduces, air quantity reduces then blast rising, and the operation point of blower fan moves on to the C point.If air quantity continues to reduce, then blast raises, and the operation point of blower fan will move to transition point K.If air quantity further reduces, blast raises in the pipeline, and the blast of blower fan reduces, gas flow blower fan in the pipeline, the operation point of blower fan becomes the D point by the K point, but the pressure that D is ordered is lower, so the S point is transferred to along characteristic curve again in the operation point, the a little higher than K point of the pressure that S is ordered, operating mode temporarily obtains balance, and this moment, gas was flow backwards to blower fan by pipeline.Because pipeline is also continuing outwards to carry gas, the blast in the pipeline reduces again, and the blast of blower fan also decreases, and the operation point moves to the D point by the S point.When pressure continues to drop to the D point when following, operation point moment of blower fan by the D point change on schedule (because of on schedule pressure ratio D point low), this moment, the air quantity Qx of blower fan output was very big, because Qx is greater than external load, thereby the pressure in the pipeline rises again, the operation point of blower fan moves on to the K point again, and above-mentioned process repeats again to take place.The operation point of blower fan falls after people's surge area, the flow big ups and downs, the time and drag flow, the time and flow backwards, gas is clashed into fiercely, blower fan itself produces strong vibration and noise, according to blower fan Q-H characteristic curve (flow and heat-capacity curve), also inequality in the differential pressure reaction surging characteristic that different depth is measured, present power plant surge measuring point fathoms uncertain, can't reflect the truth that the blower fan surge takes place preferably.
Summary of the invention
The utility model is for providing a kind of axial-flow blower surge measurement device.
Axial-flow blower surge measurement device provided by the utility model, comprise measure probe, sensor is connected with measure probe, import measurement signal into component computer by analog-digital commutator, be provided with the measure probe driving and reversing mechanism, driving and reversing mechanism is provided with probe degree of depth display unit, described measure probe driving and reversing mechanism and probe degree of depth display unit are: a rack and pinion is set in connecting head, the running shaft of gear extends to the connecting head outside, running shaft and connecting head are provided with seal arrangement, rotatable handle is set on the running shaft, connecting head surface around the rotatable handle is provided with scale, rotatable handle is provided with mark line, measure probe is connected on the tooth bar, described measure probe driving and reversing mechanism and probe degree of depth display unit are: offer the hole that has screw thread on a part of degree of depth on the connecting head, the screw mandrel that screw thread is set on a part of length is set, there is not the position of screw thread to be provided with seal ring at screw mandrel and Kong Jun, measure probe is connected on the screw mandrel, described screw mandrel is provided with scale, is provided with fast connecting joint between described connecting head and the measuring hole.
Axial-flow blower surge measurement device provided by the utility model, be provided with the measure probe driving and reversing mechanism, driving and reversing mechanism is provided with probe degree of depth display unit, can make probe adjustable at different depth, and there is corresponding scale to indicate, when measuring except can be diverse location be measured monitoring, can also be corresponding with truth by the survey data of diverse location, find out and determine can reflect the position of true surge condition, be provided with fast connecting joint between connecting head and the measuring hole, it is convenient to peg graft, the utility model is simple in structure, and is with low cost, easy to make, be easy to assembling, be adapted at applying on the power station gas fan surge measurement.
Description of drawings
Fig. 1 is a kind of mode of execution schematic representation of the present utility model.
Fig. 2 is the another kind of mode of execution schematic representation of this utility model
Embodiment
In order to explain enforcement of the present utility model more fully, provide embodiment of the present utility model.These embodiments only are the elaborations to this device, do not limit scope of the present utility model.
As accompanying drawing 1, shown in Figure 2, gas fan surge measurement device, comprise measure probe, sensor is connected with measure probe, import measurement signal into component computer by analog-digital commutator, be provided with the measure probe driving and reversing mechanism, driving and reversing mechanism is provided with probe degree of depth display unit, described measure probe driving and reversing mechanism and probe degree of depth display unit are: a rack and pinion is set in connecting head, the running shaft of gear extends to the connecting head outside, running shaft and connecting head are provided with seal arrangement, rotatable handle is set on the running shaft, connecting head surface around the rotatable handle is provided with scale, rotatable handle is provided with mark line, measure probe is connected on the tooth bar, described measure probe driving and reversing mechanism and probe degree of depth display unit are: offer the hole that has screw thread on a part of degree of depth on the connecting head, the screw mandrel that screw thread is set on a part of length is set, there is not the position of screw thread to be provided with seal ring at screw mandrel and Kong Jun, measure probe is connected on the screw mandrel, described screw mandrel is provided with scale, is provided with fast connecting joint between described connecting head and the measuring hole.Fig. 1 is a kind of mode of execution of the present utility model, among Fig. 1, one tooth bar 2 and gear 3 are set in connecting head a1, the running shaft of gear extends to connecting head a1 outside, running shaft and connecting head are provided with seal arrangement, seal arrangement can adopt seal ring, rotatable handle 4 is set on the running shaft, connecting head surface around the rotatable handle 4 is provided with scale, rotatable handle is provided with mark line, measure probe a5 is connected on the tooth bar 2, is provided with fast connecting joint between the measuring hole on described connecting head a1 and the blower fan; Fig. 2 is another kind of mode of execution of the present utility model, offer the hole 7 that has screw thread on a part of degree of depth on the connecting head b6, the screw mandrel 8 that screw thread is set on a part of length is set, all there is not the position of screw thread to be provided with seal ring 9 in screw mandrel 8 and hole 7, measure probe b10 is connected on the screw mandrel, described screw mandrel 8 is provided with scale, and described screw mandrel 8 can adopt screw thread is not set on the part circumference, scale is set shows.Seal ring can adopt the multiple tracks form.Axial-flow blower surge measurement device provided by the utility model, be provided with the measure probe driving and reversing mechanism, driving and reversing mechanism is provided with probe degree of depth display unit, can make probe adjustable at different depth, and there is corresponding scale to indicate, when measuring except can be diverse location be measured monitoring, can also be corresponding with truth by the survey data of diverse location, find out and determine can reflect the position of true surge condition, be provided with fast connecting joint between connecting head and the measuring hole, it is convenient to peg graft, the utility model is simple in structure, and is with low cost, easy to make, be easy to assembling, be adapted at applying on the power station axial flow fan surge measurement.
After describing mode of execution of the present utility model in detail, the personage who is familiar with this technology can be well understood to, can carry out various variations and modification not breaking away under above-mentioned claim and the spirit, any simple modification, equivalent variations and modification that all foundations technical spirit of the present utility model is done above embodiment, the scope that all belongs to technical solutions of the utility model, and the utility model also is not subject to the mode of execution that gives an actual example in the specification.
Claims (4)
1. gas fan surge measurement device, comprise measure probe, sensor is connected with measure probe, imports measurement signal into component computer by analog-digital commutator, it is characterized in that: be provided with the measure probe driving and reversing mechanism, driving and reversing mechanism is provided with probe degree of depth display unit.
2. gas fan surge measurement device according to claim 1, it is characterized in that: described measure probe driving and reversing mechanism and probe degree of depth display unit are: a rack and pinion is set in connecting head, the running shaft of gear extends to the connecting head outside, running shaft and connecting head are provided with seal arrangement, rotatable handle is set on the running shaft, connecting head surface around the rotatable handle is provided with scale, and rotatable handle is provided with mark line, and measure probe is connected on the tooth bar.
3. gas fan surge measurement device according to claim 1, it is characterized in that: described measure probe driving and reversing mechanism and probe degree of depth display unit are: offer the hole that has screw thread on a part of degree of depth on the connecting head, the screw mandrel that screw thread is set on a part of length is set, there is not the position of screw thread to be provided with seal ring at screw mandrel and Kong Jun, measure probe is connected on the screw mandrel, and described screw mandrel is provided with scale.
4. according to claim 2 or 3 described gas fan surge measurement devices, it is characterized in that: be provided with fast connecting joint between described connecting head and the measuring hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227084 CN203201847U (en) | 2013-04-28 | 2013-04-28 | Blower surging measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227084 CN203201847U (en) | 2013-04-28 | 2013-04-28 | Blower surging measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201847U true CN203201847U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320227084 Expired - Fee Related CN203201847U (en) | 2013-04-28 | 2013-04-28 | Blower surging measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203201847U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511314A (en) * | 2013-10-08 | 2014-01-15 | 无锡杰尔压缩机有限公司 | Surging sensor |
| CN105841748A (en) * | 2016-05-27 | 2016-08-10 | 中国工程物理研究院材料研究所 | Air duct atmosphere parameter measuring device |
| CN107687435A (en) * | 2017-08-18 | 2018-02-13 | 代文华 | A kind of rotary head bladeless fan |
| CN114754020A (en) * | 2022-04-18 | 2022-07-15 | 合肥通用机械研究院有限公司 | Compressor surge monitoring system and monitoring method based on intake noise characteristics |
-
2013
- 2013-04-28 CN CN 201320227084 patent/CN203201847U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511314A (en) * | 2013-10-08 | 2014-01-15 | 无锡杰尔压缩机有限公司 | Surging sensor |
| CN105841748A (en) * | 2016-05-27 | 2016-08-10 | 中国工程物理研究院材料研究所 | Air duct atmosphere parameter measuring device |
| CN107687435A (en) * | 2017-08-18 | 2018-02-13 | 代文华 | A kind of rotary head bladeless fan |
| CN114754020A (en) * | 2022-04-18 | 2022-07-15 | 合肥通用机械研究院有限公司 | Compressor surge monitoring system and monitoring method based on intake noise characteristics |
| CN114754020B (en) * | 2022-04-18 | 2024-02-02 | 合肥通用机械研究院有限公司 | Compressor surge monitoring system and monitoring method based on intake noise characteristics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140428 |