CN206095319U - Measuring room subassembly of turbine gas table - Google Patents

Measuring room subassembly of turbine gas table Download PDF

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Publication number
CN206095319U
CN206095319U CN201620989947.4U CN201620989947U CN206095319U CN 206095319 U CN206095319 U CN 206095319U CN 201620989947 U CN201620989947 U CN 201620989947U CN 206095319 U CN206095319 U CN 206095319U
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CN
China
Prior art keywords
turbine
kuppe
gear
water conservancy
shell
Prior art date
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Withdrawn - After Issue
Application number
CN201620989947.4U
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Chinese (zh)
Inventor
张军
吴小川
张勇
刘晓阳
陈海林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elster Germany
Original Assignee
QIANWEI KROMMSCHODER METER(CHONGQIANG) CO Ltd
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Priority to CN201620989947.4U priority Critical patent/CN206095319U/en
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Publication of CN206095319U publication Critical patent/CN206095319U/en
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Abstract

The utility model discloses a measuring room subassembly of turbine gas table, including the shell, kuppe and back kuppe before being equipped with in the shell, preceding kuppe include preceding kuppe main part and water conservancy diversion piece, and the water conservancy diversion piece radially is radial distribution along the water conservancy diversion cross section of preceding kuppe main part, are provided with the turbine between preceding, the back kuppe, the water conservancy diversion face of kuppe main part before the blade of turbine stretches out, and the turbine is continuous with the reduction gears. Big port towards the right side of circular arc spherical surface and the circular conical surface that smooth transition connects, circular conical surface is drawn together to the water conservancy diversion bread of preceding kuppe main part, in the fixed kuppe main part in the front and parallel with the axis of preceding kuppe main part, there is the cylindrical shell in the edge -fixed company in the water conservancy diversion piece outside to the water conservancy diversion piece uniformly, and the cylindrical shell inlays and coordinates in the shell and with the shell inner wall is sealed, the water conservancy diversion face of back kuppe is circular conical surface and its miniport court right side, and the blade of turbine stretches out the water conservancy diversion face of back kuppe. The subassembly measuring accuracy of this measurement portion of this subassembly is high, and the water conservancy diversion is effectual, can effectively prevent the gas backward flow.

Description

The metering chamber component of turbine gas meter, flow meter
Technical field
The utility model belongs to turbine flowmeter technical field, more particularly to a kind of turbine flow for gas metering Meter.
Background technology
Turbine flowmeter is a kind of simple structure, and the higher flowmeter of measuring accuracy, common mainly has based on combustion gas The turbine gas meter (the turbine gas meter, flow meter generally said) of amount, it is mainly by the gauge outfit and circulation meter of display data on flows The metering parts composition of amount gas medium, wherein, gauge outfit is located on metering parts, by its principle can be divided into it is mechanical and Electronic type gauge outfit.Metering parts are the core component of turbine flowmeter, the gas that direct measurement flows through, including shell, and this is outer Shell is provided with one section of cylinder of adpting flange for two ends, and gauge outfit is just arranged on shell and the input gear in gauge outfit stretches into shell Interior, the two-port of inside the shell is respectively equipped with the forward and backward kuppe of circle, and for guiding air current flow, forward and backward kuppe is by leading Flow and pod body are constituted, and flow deflector radially is evenly arranged in pod body appearance along the radial direction of kuppe Face, is provided with co-axial turbine between forward and backward kuppe, and the blade of turbine stretches out the guide face of before and after pod body, After so as to guide face (guide face of former dome main body) before airflow passes, rear guide face (water conservancy diversion afterwards can be flowed through again through turbine The guide face of cover main body), finally flow out flowmeter;Above-mentioned turbine is connected by reducing gear with above-mentioned input gear, so as to band Dynamic gauge outfit is rotated, and shows flow value.Measuring the operation principle of parts is:Combustion gas is in the impulse turbine leaf after former dome Piece, drives turbine rotation, so as to the flow velocity of combustion gas to be converted to the rotating speed of turbine, and under certain condition, that is, meets turbine combustion The installation requirement of air-flow gauge, generally, should at least there be the straight length of 20 times of inside nominal diameter length, downstream in the upstream end of flowmeter The straight length of 5 times of inside nominal diameters should be no less than, requires that gas flow rate is directly proportional to its flow with the fluidised form for reaching turbulent flow, therefore, The actual flow of combustion gas can be indirectly obtained by measuring secondary speed.The measuring accuracy error of current turbine gas meter, flow meter compared with Greatly, the higher turbine gas meter, flow meter of precision is all that, to improve part processing precision, especially turbine machining accuracy, increases cost and exchange for , very big financial burden is increased to user, contain promoting the use of for turbine gas meter, flow meter, so as to just hinder turbine gas meter skill The development of art.The former dome of existing metering parts is commonly made to alveolate texture, and its water conservancy diversion effect is poor, is unfavorable for turbine Stable rotating speed is produced, measuring accuracy is affected;And the guide face of existing rear kuppe is the face of cylinder, combustion gas is by turbine Jing When afterwards kuppe flows out, backflow can be produced, block the normal rotation of turbine, cause flowmeter measuring accuracy to decline to a great extent.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem, there is provided a kind of metering chamber component of turbine gas meter, flow meter, Gas meter, flow meter measuring accuracy using the metering parts is high, and water conservancy diversion effect is good, can effectively prevent combustion gas stream from flowing back, and greatly reduces Error in dipping, with good economic worth and social benefit.
The technical solution of the utility model is as follows:
A kind of metering chamber component of turbine gas meter, flow meter, including shell, the inside the shell is sequentially provided with from left to right front water conservancy diversion Cover and rear kuppe, the former dome includes former dome main body and flow deflector, and the flow deflector is along former dome main body Guide face is radially radially distributed, and rotatable turbine, the leaf of the turbine are provided between the forward and backward kuppe Piece stretches out the guide face of former dome main body, and the turbine is connected with reducing gear.
The guide face of the former dome main body includes the circular arc spherical surface of left end and the taper seat of right-hand member, the taper seat Towards the right side, the circular arc spherical surface and taper seat are connected smoothly large port;The flow deflector is thin-slab structure, and flow deflector is equably Be fixed in former dome main body and with the diameter parallel of former dome main body, flow deflector outer ledge is fixed with one layer of cylinder Housing, the cylindrical shell is embedded in the inside the shell and its left end external cylindrical surface coordinates with the inner wall sealing of shell;The rear water conservancy diversion The guide face of cover be the portlet of taper seat and taper seat towards the right side, the blade of the turbine stretches out the guide face of rear kuppe.
Further, the former dome main body includes successively from left to right a hemispherical housing and a coniform cylinder Body, the hemispherical housing and coniform cylinder are integral type structure.
Further, the left end of the flow deflector stretches out the circular arc spherical surface of former dome main body and is connected with circular arc spherical surface.
Further, the left end of the cylindrical shell is closely embedded with guide ring, and the endoporus of the guide ring is from left to right Include cylindrical hole and conical bore successively, the large port of the conical bore is towards the flow deflector.
Further, the reducing gear includes the movement of rectangular-shape, and groove is provided with movement, and the left end of movement is provided with Bearing, the left end of rotating shaft is fixed with turbine and right-hand member is worm structure, and the worm screw end is stretched in the groove simultaneously through after bearing Engage with worm gear, the two ends of worm-wheel shaft stretch out movement before and after be connected with little gear behind both sides respectively, wherein the little gear of side with Output gear is engaged.
Further, the reducing gear is located in the reductor casing of cylinder, the left end of the casing with it is described Cylindrical shell coaxially connects, and right-hand member coaxially connects with the left end of the rear kuppe.
Further, the output gear end face is provided with rotation stop annulus, and in rotation stop annulus end face a pair of grooves and two are provided with Diameter symmetry of the groove with regard to rotation stop annulus;The input shaft bottom of the magnetic coupling transmission component being connected with output shaft also is provided with described Rotation stop annulus and groove;The two ends of the output shaft are equipped with the tiny short axle for extending vertically through the output shaft, and the two of output shaft End is inserted in the input shaft of magnetic coupling transmission component and the rotation stop annulus of output gear respectively, and the tiny short axle difference at each end is embedding Enter in the groove on respective end rotation stop annulus.
Further, the worm gear is arranged on the surface at worm screw end, the little gear of opposite side by with first gear, Engaged transmission between one gear and second gear keeps rotary balance.
The beneficial effects of the utility model:The utility model combines to form former dome using circular arc spherical surface and taper seat The guide face of main body, and it is aided with the strip flow deflector and cylindrical shell for axially extending, between being collectively forming strip vertically Realizing water conservancy diversion, its water conservancy diversion effect is fabulous, relative to the sharp end face of existing ellipsoid and the face of cylinder or circular arc camber for gap Combination its mobility it is higher, and, using the existing cellular pore class space water conservancy diversion speed of bar shaped gap-ratio faster, more It is stable, more stably drive turbine rotation to provide precondition for fuel gas flow;On the other hand, lead after low order end (port of export) The flow deflector arranged on kuppe after tradition is eliminated on stream cover, and guide face is made into small end towards measurement unit module outlet end Taper seat, can effectively prevent fuel gas return-flow, it is to avoid the interference that backflow causes to turbine normal rotation, be to improve measuring accuracy to establish Solid foundation.
Description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is former dome structural representation.
Fig. 3 is former dome sectional view.
Fig. 4 is reducing gear structural representation.
Fig. 5 is reducing gear wherein one side structural representation.
Fig. 6 is reducing gear another side structural representation.
Component label instructions:Shell 1, the first O-ring 2, guide ring 3, former dome 4, the second O-ring 5, cylinder 6, deceleration Machine casing 7, magnetic coupling transmission component 8, output shaft 9, reducing gear 10, rear kuppe 11, support bar 12, turbine 13, front water conservancy diversion Cover main body 401, flow deflector 402, cylindrical shell 403, circular arc spherical surface 40101, taper seat 40102, wherein movement 1001, side Little gear 1002, output gear 1003, worm gear 1004, first gear 1005, second gear 1006, rotating shaft 1007, opposite side Little gear 1008, groove 100301.
Specific embodiment
Hereinafter embodiment of the present utility model is illustrated by particular specific embodiment, those skilled in the art can be by this Content disclosed by specification understands easily other advantages of the present utility model and effect.
With reference to the accompanying drawings and examples the utility model is described in further detail:
As shown in Fig. 1-3, a kind of metering chamber component of turbine gas meter, flow meter, including shell 1, in the shell 1 from left to right Former dome 4 and rear kuppe 11 are sequentially provided with, the former dome 4 includes former dome main body 401 and flow deflector 402, institute State flow deflector 402 to be radially radially distributed along the guide face cross section of former dome main body 401, the forward and backward kuppe it Between be provided with rotatable turbine 13, the blade of the turbine 13 stretches out the guide face of former dome main body 401, described Turbine 13 is connected with reducing gear 10.
From unlike existing turbine gas meter, flow meter, the guide face of the former dome main body 401 includes the arc ball of left end The taper seat 40102 of face 40101 and right-hand member, the large port of the taper seat 40102 becomes narrow gradually runner towards the right side, increase stream Speed, is easy to guide air-flow to flow to the right.The circular arc spherical surface 40101 and taper seat 40102 are connected smoothly, in actual production Can be with injection moulding integrated molding.The flow deflector 402 is thin-slab structure, and flow deflector 402 is uniformly fixed to former dome main body 401 It is connected above and with former dome main body 401 with the long side of the flow deflector 402 of the diameter parallel of former dome main body 401, i.e. sheet, Extend from left to right.The outer ledge of flow deflector 402 (towards a lateral edges of the inwall of shell 1) is fixed with the circle of layer Post housing 403, the cylindrical shell 403 is embedded in the shell 1 and its left end external cylindrical surface coordinates with the inner wall sealing of shell 1, The first O-ring 2 can be arranged to seal, to realize that air-flow is entered completely from former dome 401, it is to avoid air-flow infilters shell 1 and circle Mezzanine space between post housing 403, affects measuring accuracy.The guide face of the rear kuppe 11 is taper seat and taper seat Towards the right side, the blade of the turbine 13 stretches out the guide face of rear kuppe 11 to portlet, so as to can be suitable through the air-flow of turbine 13 The guide face of sharp Jing kuppes 11 is excluded, and herein, the guide face of rear kuppe 11 is circle of the large port towards measurement unit module outlet The conical surface, can effectively prevent fuel gas return-flow, it is to avoid produce interference to the rotation of turbine 13, affect measuring accuracy.Above-mentioned former dome master Body 401, flow deflector 402, cylindrical shell 403 can adopt integrated injection molding.For ease of laying, in the flange at the two ends of shell 1 Disk outer wall can also knock in two pairs of bearings 12.
Metering parts are the core metering unit of turbine gas meter, flow meter, and corresponding machine can be connected on the basis of this component Tool or electronic type gauge outfit are measuring the display of data.
Further, the former dome main body 401 including a hemispherical housing (contains circular arc successively from left to right Sphere 40101) an and coniform cylinder (i.e. containing taper seat 40102), the hemispherical housing and coniform cylinder are one Body formula structure, makes overall structure slim and graceful, compact.
Further, the left end of the flow deflector 402 stretch out former dome main body 401 circular arc spherical surface 40101 and with circle Arc sphere 40101 is connected as a single entity, and can strengthen the guide functions of former dome 4.
Further, the left end of the cylindrical shell 403 is closely embedded with guide ring 3, and the endoporus of the guide ring 3 is from a left side Include cylindrical hole and conical bore successively to right, the large port of the conical bore towards the flow deflector 402, using this special angle Through-hole structure, can lift the water conservancy diversion effect of former dome 4, make air-flow more fully enter into the space between flow deflector 402 In, pressure on shell 1 is also convenient for, internal gas flow pressure is gathered, make pressure more accurate.
Further, as shown in Fig. 4-6, the reducing gear 10 includes the movement 1001 of rectangular-shape, in movement 1001 It is provided with groove, the left end of movement 1001 is provided with bearing, the left end of rotating shaft 1007 is fixed with turbine 13 and right-hand member is worm structure, should Worm screw end is stretched in the groove through after bearing and is engaged with worm gear 1004, and the two ends of worm-wheel shaft are stretched out before and after movement 1001 It is connected with little gear behind both sides respectively, the little gear 1002 of wherein side is engaged with output gear 1003, this kind of gear transmission structure, Simple compact, vibration is little, and transmission is stable, is to establish solid foundation to gauge outfit transmission accurate information.
Further, the reducing gear 10 is located in the reductor casing 7 of cylinder, the left end of the casing 7 with The cylindrical shell 403 coaxially connects, and specifically can be connected using such as socket joint, and it is close with the inwall of shell 1 to arrange the second O-ring 5 Envelope;Further, it is also possible to arrange a cylinder 6 to adjust the axially mounted position of cylindrical shell 403.The right-hand member of casing 7 with it is described after The left end of kuppe 11 coaxially connects, and socket joint connection equally may also be employed, and the left end of rear kuppe 11 is arranged into an annulus platform The right-hand member of rank insertion reductor casing 7, to ensure that above-mentioned associated components can have certain axiality, improve assembling and Measuring accuracy.
Further, as shown in figure 5, the end face of the output gear 1003 is provided with rotation stop annulus (unmarked sequence in figure Number), the rotation stop annulus and the unitary design of output gear 1003 are provided with a pair of grooves 100301, and two in rotation stop annulus end face Diameter symmetry of the groove 100301 with regard to rotation stop annulus;The input shaft bottom of the magnetic coupling transmission component 8 being connected with output shaft 9 Be provided with said structure identical rotation stop annulus and groove 100301 (the i.e. a kind of existing magnetic shaft coupling of magnetic coupling transmission component 8, Its input shaft drives output shaft rotation by magnetic coupling);The two ends of the output shaft 9 are equipped with and extend vertically through the output shaft Tiny short axle (not shown), the input shaft and output gear of magnetic coupling transmission component 8 are inserted respectively in the two ends of output shaft 9 In rotation stop annulus on 1003 and interference fit, and the tiny short axle at each end is respectively embedded into the groove on respective end rotation stop annulus In 100301, to realize for output shaft when being connected 9 of output gear 1003 and magnetic coupling transmission component 8 rotating non-slip, Magnetic coupling transmission component 8 is finally connected with gauge outfit, and according to actual conditions the above-mentioned magnitude of interference and tiny short axle and groove are adjusted 100301 gap, it is to avoid due to assembling or part's machining errors, output shaft 9 and output gear 1003 are stuck when causing work Even fracture.Output shaft 9 is connected with magnetic coupling transmission component 8, transmits torque to gauge outfit.
Further, the worm gear 13 is arranged on the surface at worm screw end, and the little gear 1008 of opposite side is by with first Engaged transmission between gear 1005, first gear 1005 and second gear 1006 keeps rotary balance.Because, wherein side Little gear 1002 is engaged with output gear 1003, transfers torque to gauge outfit, drives gauge outfit to rotate;And the little gear of opposite side 1008 act primarily as balanced action, prevent worm-wheel shaft from rocking, and the engagement set up between first gear 1005 and second gear 1006 is passed It is dynamic then be the vibration brought for further counter balance torque.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited Type.Any person skilled in the art all can be carried out under without prejudice to spirit and the scope of the present utility model to above-described embodiment Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.

Claims (8)

1. a kind of metering chamber component of turbine gas meter, flow meter, including shell, the inside the shell is sequentially provided with from left to right former dome With rear kuppe, the former dome includes former dome main body and flow deflector, and the flow deflector is led along former dome main body Stream interface is radially radially distributed, and rotatable turbine, the blade of the turbine are provided between the forward and backward kuppe The guide face of former dome main body is stretched out, the turbine is connected with reducing gear, it is characterised in that:
The guide face of the former dome main body includes the circular arc spherical surface of left end and the taper seat of right-hand member, the big end of the taper seat Towards the right side, the circular arc spherical surface and taper seat are connected smoothly mouth;The flow deflector is thin-slab structure, and flow deflector is equably fixed In former dome main body and with the diameter parallel of former dome main body, flow deflector outer ledge is fixed with one layer of cylindrical shell Body, the cylindrical shell is embedded in the inside the shell and its left end external cylindrical surface coordinates with the inner wall sealing of shell;The rear kuppe Guide face be the portlet of taper seat and taper seat towards the right side, the blade of the turbine stretches out the guide face of rear kuppe.
2. the metering chamber component of turbine gas meter, flow meter according to claim 1, it is characterised in that:The former dome main body is from a left side Include a hemispherical housing and a coniform cylinder successively to right, the hemispherical housing and coniform cylinder are integral type Structure.
3. the metering chamber component of turbine gas meter, flow meter according to claim 1, it is characterised in that:The left end of the flow deflector stretches out The circular arc spherical surface of former dome main body is simultaneously connected with circular arc spherical surface.
4. the metering chamber component of turbine gas meter, flow meter according to claim 1, it is characterised in that:The left end of the cylindrical shell is tight Thickly be embedded with guide ring, the endoporus of the guide ring includes successively from left to right cylindrical hole and conical bore, the conical bore it is big Port is towards the flow deflector.
5. the metering chamber component of turbine gas meter, flow meter according to claim 1, it is characterised in that:The reducing gear includes rectangular The movement of body shape, is provided with groove in movement, the left end of movement is provided with bearing, and the left end of rotating shaft is fixed with turbine and right-hand member is worm screw Structure, the worm screw end is stretched in the groove through after bearing and is engaged with worm gear, and the two ends of worm-wheel shaft are stretched out before and after movement It is connected with little gear behind both sides respectively, the little gear of wherein side is engaged with output gear.
6. the metering chamber component of turbine gas meter, flow meter according to claim 5, it is characterised in that:The reducing gear is located at one In the reductor casing of cylinder, the left end of the casing coaxially connects with the cylindrical shell, right-hand member and the rear kuppe Left end coaxially connects.
7. the metering chamber component of turbine gas meter, flow meter according to claim 6, it is characterised in that:The output gear end face is provided with Rotation stop annulus, rotation stop annulus end face be provided with a pair of grooves and two grooves with regard to rotation stop annulus diameter symmetry;With output shaft phase The input shaft bottom of magnetic coupling transmission component even also is provided with the rotation stop annulus and groove;The two ends of the output shaft are equipped with The tiny short axle of the output shaft is extended vertically through, input shaft and the output of magnetic coupling transmission component are inserted respectively in the two ends of output shaft In the rotation stop annulus of gear, and the tiny short axle at each end is respectively embedded in the groove on respective end rotation stop annulus.
8. the metering chamber component of turbine gas meter, flow meter according to claim 5, it is characterised in that:The worm gear is arranged on worm screw end Surface, the little gear of opposite side keeps turning by the engaged transmission between first gear, first gear and second gear Dynamic balancing.
CN201620989947.4U 2016-08-30 2016-08-30 Measuring room subassembly of turbine gas table Withdrawn - After Issue CN206095319U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620989947.4U CN206095319U (en) 2016-08-30 2016-08-30 Measuring room subassembly of turbine gas table

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620989947.4U CN206095319U (en) 2016-08-30 2016-08-30 Measuring room subassembly of turbine gas table

Publications (1)

Publication Number Publication Date
CN206095319U true CN206095319U (en) 2017-04-12

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CN201620989947.4U Withdrawn - After Issue CN206095319U (en) 2016-08-30 2016-08-30 Measuring room subassembly of turbine gas table

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106197574A (en) * 2016-08-30 2016-12-07 重庆前卫克罗姆表业有限责任公司 The measuring room assembly of turbine gas meter, flow meter
CN107843296A (en) * 2017-11-30 2018-03-27 四川泛华航空仪表电器有限公司 A kind of turbine consumption sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106197574A (en) * 2016-08-30 2016-12-07 重庆前卫克罗姆表业有限责任公司 The measuring room assembly of turbine gas meter, flow meter
CN106197574B (en) * 2016-08-30 2023-11-28 德国埃尔斯特公司 Metering chamber assembly of turbine gas meter
CN107843296A (en) * 2017-11-30 2018-03-27 四川泛华航空仪表电器有限公司 A kind of turbine consumption sensor

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Effective date of registration: 20200828

Address after: Mainz Castile, Germany

Patentee after: Elster, Germany

Address before: 401121 No. 69, Mount Huangshan Avenue, Yubei District, Chongqing

Patentee before: QIANWEI KROMSCHRODER METERS (CHONGQING) Co.,Ltd.

AV01 Patent right actively abandoned
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Granted publication date: 20170412

Effective date of abandoning: 20231128

AV01 Patent right actively abandoned

Granted publication date: 20170412

Effective date of abandoning: 20231128