CN105652031A - Air conditioner pipeline flow velocity monitor - Google Patents
Air conditioner pipeline flow velocity monitor Download PDFInfo
- Publication number
- CN105652031A CN105652031A CN201510910284.2A CN201510910284A CN105652031A CN 105652031 A CN105652031 A CN 105652031A CN 201510910284 A CN201510910284 A CN 201510910284A CN 105652031 A CN105652031 A CN 105652031A
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- windward
- plate
- sheet
- air
- resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
- G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to an air conditioner pipeline flow velocity monitor. The monitor comprises a beam pipe installed on an inner wall of an air conditioner air duct. A windward plate is arranged in the beam pipe. A central section of the windward plate is provided with an air exhaust hole whose opening is in a rectangle shape. Several windward sheets are fixed in the air exhaust hole in an array mode. An axial end of the windward plate and an inner wall of the beam pipe are rotatably connected. The windward sheets and an inner wall of the air exhaust hole are rotatably connected. A rotation shaft axis of the windward sheets is parallel to a rotation shaft axis of the windward plate and is vertical to an axis of the beam pipe. A resistance strain gauge is arranged between the inner wall of the beam pipe and a free rotation end of the windward plate. The resistance strain gauge is tensioned by a gravity of the windward plate.
Description
Technical field
The present invention relates to a kind of air-conditioning duct flow monitoring instrument, belong to fluid monitoring field.
Background technology
In the use of large-scale air temperature control and recycle unit, list central authorities' air duct type air-conditioning in, often can use more airduct and carry out leading wind, simultaneously in order to realize the object such as air filtration and heat exchange, the parts such as filtering net, heat exchange fin and drainage blower fan can be added in airduct, in order to monitor the normal operation of items of equipment and element, all kinds of flow monitor can be installed in pipeline, while realizing being monitored by flow rate of pipelines, it is possible to realize the automatic control to equipment such as drainage blower fan, interchanger in pipeline;
Traditional gas flow rate meter is generally wind meter, and its ultimate principle is put in a fluid by the wire that thin, galvanization heating of metal silk so that it is wire wind meter, higher than the temperature of fluid, is therefore called " hot line " by temperature. When fluid vertically flows through wire, a part of heat of wire will be taken away, make wire temperature decrease. Theoretical according to forced convection heat exchange, can derive and there is relational expression between hot line dispersed heat Q and the speed v of fluid. The hot line probe of standard is made up of two support tensionings short and thin wire.
This type of wind meter mainly adopts the temperature difference to realize the measurement to wind speed, but in the use of the equipment such as air-conditioning, because the temperature of air is real-time change, so the wind meter of this class formation is in the use of mechanism, data deviation can be relatively big, and for the conditioning unit that the large-scale interior space uses, often gas humidity is bigger, the hot line of the velocimeter of this kind of structure is easy to corrode, and causes the inaccurate of data;
In addition, also has the velocimeter of a kind of vane type, by different in flow rate flow velocity, the motivating force difference of impeller is realized monitoring, this kind of velocimeter generally adopts a drives impeller constantly rotated in a fluid, flow velocity is obtained by the rotating speed of drives impeller, its agent structure comprises impeller and an electric generator structure rotated, structure is simple, with low cost, it is applicable to some profits low, usage quantity is big, the factory that data accuracy requirement is not high, but also there is bigger shortcoming in mechanical velocimeter, in order to reduce the difficulty of digital simulation, the rotation axis of general impeller and the axis coaxle of pipeline, fluid head-on flows towards impeller, so the decay that impeller brings to rate of flow of fluid in pipeline is very huge, the flow velocity in pipeline not only may be made cannot to reach working index, the flow velocity of this kind of structure neither be very accurate simultaneously, generally can only according to the tail pipe position at pipeline structure, use range is also very little,
Such as a kind of mechanical velocimeter that ZL201110251948.0 proposes, it adopts a large-scale impeller to realize the detection to flow velocity, this velocimeter flow resistance is bigger, the lift demand of fluid driven impeller is higher, and the flow rate attenuation brought by whole pipeline is also bigger, in addition, this velocimeter is it is generally required to be connected in series in pipeline, if needing to be installed by existing pipeline, so need to dismantle existing pipeline, integrated engineering amount is bigger, if the quality rotating the velocimeter impeller of formula in addition is not high, also certain shake can be brought to pipeline during rotation, affect the life-span of pipeline.
Summary of the invention
The technical problem to be solved in the present invention is: overcome mechanical flowmeter cost height in prior art, use annular requirement height, the technical problems such as vane current-meter flow resistance is big, installation difficulty, it is provided that one air-conditioning duct flow monitoring instrument.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of air-conditioning duct flow monitoring instrument, described monitor comprises the line pipe that is arranged on air conditioning wind pipe inwall, a plate windward it is provided with in described line pipe, being provided with an opening in the middle part of described plate windward is the vent of rectangle, and in described vent, array is fixed with some sheets windward; It is rotationally connected between the axial one end of plate and line pipe inwall windward, it is rotationally connected between described sheet windward and vent inwall, the rotation axis axis of sheet and plate rotation axis axis being parallel windward windward, with the axes normal of line pipe, at described line pipe inwall and be provided with resistance-strain sheet between the free turning end of plate windward; Resistance-strain sheet is strained by the gravity of plate windward.
As the further innovation of the present invention, being provided with the groove of a bar shaped at described line pipe inwall, the cross section being rotationally connected end of plate is the semicircle corresponding with groove windward; The transverse ends being rotationally connected end of described plate windward is rotationally connected by the axial two ends of rotation axis and groove.
As the further innovation of the present invention, the spacing between the described line of disk rotating shaft windward is greater than the width of sheet windward.
As the further innovation of the present invention, axis two end sections of sheet width are trilateral windward.
As the further innovation of the present invention, being processed with some straight-line grooves on described line pipe outer wall, the axis of straight-line groove and the axis being parallel of line pipe, be inlaid with India-rubber strip at straight-line groove.
As the further innovation of the present invention, described resistance-strain sheet is coated with rubber layer, on described plate windward and on line pipe inwall, it is provided with a resistance-strain sheet clamps mechanism, described resistance-strain sheet clamps mechanism and comprises a chute, chute is provided with a slide block, being provided with a screw rod on chute inwall, described slide block is pressed in chute inwall by screw top, and the end of described resistance-strain sheet is clamped between slide block and chute.
The invention has the beneficial effects as follows:
1, this structure replaces traditional impeller by the plate windward that has good ventilative performance, with lower windage, reduce velocimeter to the impact of pipe flow speed, under different air velocity, change, by power, the monitoring realizing flow velocity by sheet windward, and this velocimeter simple structure, weight is low, burden can not be brought to pipeline, and when working, comparatively quiet, the situations such as pipeline shake can not be produced.
2, the position rotated is positioned at groove, it is possible to reducing further because rotating fixed position to bring extra windage to pipeline, affecting the drafting efficiency of pipeline.
3, windward sheet complete sagging time, between also leave bigger space, ensure that lower windage so that blower fan, when low speed is standby, also can keep good working order.
4, the sheet windward of trilateral has lower windage, it is not easy to the drafting efficiency of pipeline is brought impact.
5, this structure is fixed on the inwall of pipeline by the frictional force of some India-rubber strips, good fixing effect, simple structure, and cost is also lower.
6, the resistance-strain sheet of this structure is detachable clamping mechanism, it is possible to realize the dismounting and change to resistance-strain sheet easily, and this structure clamping force is higher, can not cause deviating from of resistance-strain sheet because the oscillating acceleration of plate windward is excessive.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the schematic diagram that resistance-strain sheet clamps mechanism.
In figure: 1, line pipe; 2, vent; 3, sheet windward; 4, resistance-strain sheet; 5, plate windward; 6, plate windward; 7, groove; 8, India-rubber strip; 9, slide block.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation. These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described with illustration, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 1, the present invention is a kind of air-conditioning duct flow monitoring instrument, described monitor comprises the line pipe 1 that is arranged on air conditioning wind pipe inwall, plate 5 windward it are provided with in described line pipe 1, the vent 2 that an opening is rectangle it is provided with in the middle part of described plate windward 5, in described vent 2, array is fixed with some sheet 3 windward, and the spacing between described sheet windward 3 rotation axis 6 line is greater than the width of sheet 3 windward, and axis two end sections of sheet 3 width are trilateral windward; It is rotationally connected between the axial one end of plate 5 and line pipe 1 inwall windward, it is rotationally connected between described sheet windward 3 and vent 2 inwall, rotation axis 6 axis of sheet 3 and plate 5 rotation axis 6 axis being parallel windward windward, with the axes normal of line pipe 1, at described line pipe 1 inwall and be provided with resistance-strain sheet 4 between the free turning end of plate 5 windward;
The groove 7 being provided with a bar shaped at described line pipe 1 inwall, the cross section being rotationally connected end of plate 5 is the semicircle corresponding with groove 7 windward; The transverse ends being rotationally connected end of described plate windward 5 is rotationally connected by the axial two ends of rotation axis 6 with groove 7;
Being processed with some straight-line grooves on described line pipe 1 outer wall, the axis of straight-line groove and the axis being parallel of line pipe 1, be inlaid with India-rubber strip 8 at straight-line groove;
Described resistance-strain sheet 4 is coated with rubber layer, on described plate windward 5 and on line pipe 1 inwall, it is provided with a resistance-strain sheet 4 clamps mechanism, described resistance-strain sheet 4 clamps mechanism and comprises a chute, chute is provided with a slide block 9, chute inwall is provided with a screw rod, described slide block is pressed in chute inwall by screw top, and the end of described resistance-strain sheet 4 is clamped between slide block and chute;
During installation, counterweight block is inlayed in plate 5 windward, by adjusting the weight of counterweight block, resistance-strain sheet 4 is tightened up, and is adjusted to a standard value, this structure is directly pressed in the pipe joint of airduct, India-rubber strip 8 and airduct contact internal walls, fixed by frictional force, and pipe joint is reinstalled pipeline, resistance-strain sheet 4 is connected on electric bridge.
During use, the sheet windward 3 of plate 5 is among fluid windward, at low flow rates, because blast and wind speed are less, the reactive force along journey flow velocity resistance that sheet 3 is subject to windward is less, blast is also less, the state that sheet 3 is in minor rotation or loosens windward, resistance is bigger, when wind speed becomes big, blast also becomes big thereupon, air-flow generation flow resistance in air channel is also increased by sheet 3 thereupon windward, under the retroaction and windage impact of flow resistance, sheet 3 occurs to swing by a small margin windward, now flow resistance is bigger, whole plate windward 5 is driven to rotate, resistance becomes further diminishing, now illustrate that the blast of pipeline inner blower is too high or the blocking of good situation locally occurs to hand over, the flow velocity in other air channels is caused to become big, so just needing to be overhauled by pipeline, the position changed greatly for flow resistance is detected, it is achieved to the investigation of fault,
When wind speed becomes big further, sheet 3 is parallel to pipeline fluid flow direction windward, and now resistance to flow variable diminishes, and resistance also occurs the change of trace big, as long as allowing resistance value be in an applicable scope, so that it may to monitor or to adjust the working order in air channel dynamically;
This structure can utilize in fan condition inspection, the long-pending ash state-detection of heat exchange fin, filtering net, and the detection of the state such as airduct gas leakage, and simple structure is effective.
The useful effect of this structure has:
1, this structure replaces traditional impeller by the plate windward that has good ventilative performance, with lower windage, reduce velocimeter to the impact of pipe flow speed, under different air velocity, change, by power, the monitoring realizing flow velocity by sheet windward, and this velocimeter simple structure, weight is low, burden can not be brought to pipeline, and when working, comparatively quiet, the situations such as pipeline shake can not be produced.
2, the position rotated is positioned at groove, it is possible to reducing further because rotating fixed position to bring extra windage to pipeline, affecting the drafting efficiency of pipeline.
3, windward sheet complete sagging time, between also leave bigger space, ensure that lower windage so that blower fan, when low speed is standby, also can keep good working order.
4, the sheet windward of trilateral has lower windage, it is not easy to the drafting efficiency of pipeline is brought impact.
5, this structure is fixed on the inwall of pipeline by the frictional force of some India-rubber strips, good fixing effect, simple structure, and cost is also lower.
6, the resistance-strain sheet of this structure is detachable clamping mechanism, it is possible to realize the dismounting and change to resistance-strain sheet easily, and this structure clamping force is higher, can not cause deviating from of resistance-strain sheet because the oscillating acceleration of plate windward is excessive.
Taking the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff in the scope not deviateing this invention technological thought, can carry out various change and amendment completely. The content that the technical scope of this invention is not limited on specification sheets, it is necessary to determine its technical scope according to right.
Claims (6)
1. an air-conditioning duct flow monitoring instrument, it is characterized in that: described monitor comprises the line pipe that is arranged on air conditioning wind pipe inwall, a plate windward it is provided with in described line pipe, being provided with an opening in the middle part of described plate windward is the vent of rectangle, and in described vent, array is fixed with some sheets windward; It is rotationally connected between the axial one end of plate and line pipe inwall windward, it is rotationally connected between described sheet windward and vent inwall, the rotation axis axis of sheet and plate rotation axis axis being parallel windward windward, with the axes normal of line pipe, at described line pipe inwall and be provided with resistance-strain sheet between the free turning end of plate windward; Resistance-strain sheet is strained by the gravity of plate windward.
2. a kind of air-conditioning duct flow monitoring instrument as claimed in claim 1, is characterized in that: the groove being provided with a bar shaped at described line pipe inwall, and the cross section being rotationally connected end of plate is the semicircle corresponding with groove windward;The transverse ends being rotationally connected end of described plate windward is rotationally connected by the axial two ends of rotation axis and groove.
3. a kind of air-conditioning duct flow monitoring instrument as claimed in claim 1, is characterized in that: the spacing between the described line of disk rotating shaft windward is greater than the width of sheet windward.
4. a kind of air-conditioning duct flow monitoring instrument as claimed in claim 1, is characterized in that: axis two end sections of sheet width are trilateral windward.
5. a kind of air-conditioning duct flow monitoring instrument as claimed in claim 1, is characterized in that: be processed with some straight-line grooves on described line pipe outer wall, and the axis of straight-line groove and the axis being parallel of line pipe, be inlaid with India-rubber strip at straight-line groove.
6. a kind of air-conditioning duct flow monitoring instrument as claimed in claim 1, it is characterized in that: described resistance-strain sheet is coated with rubber layer, on described plate windward and on line pipe inwall, it is provided with a resistance-strain sheet clamps mechanism, described resistance-strain sheet clamps mechanism and comprises a chute, chute is provided with a slide block, chute inwall is provided with a screw rod, described slide block is pressed in chute inwall by screw top, and the end of described resistance-strain sheet is clamped between slide block and chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910284.2A CN105652031A (en) | 2015-12-10 | 2015-12-10 | Air conditioner pipeline flow velocity monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910284.2A CN105652031A (en) | 2015-12-10 | 2015-12-10 | Air conditioner pipeline flow velocity monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105652031A true CN105652031A (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510910284.2A Pending CN105652031A (en) | 2015-12-10 | 2015-12-10 | Air conditioner pipeline flow velocity monitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105652031A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
| CN108344373A (en) * | 2017-01-24 | 2018-07-31 | 通用电气公司 | The method for making the component with integral type strain indicator |
| CN108344372A (en) * | 2017-01-23 | 2018-07-31 | 通用电气公司 | The method for making and monitoring the component with integral type strain indicator |
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| CN108344372A (en) * | 2017-01-23 | 2018-07-31 | 通用电气公司 | The method for making and monitoring the component with integral type strain indicator |
| CN108344372B (en) * | 2017-01-23 | 2022-06-03 | 通用电气公司 | Method of making and monitoring a component having an integral strain indicator |
| CN108344373A (en) * | 2017-01-24 | 2018-07-31 | 通用电气公司 | The method for making the component with integral type strain indicator |
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
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Application publication date: 20160608 |