CN203758566U - Diaphragm gas meter with concealed type mechanical temperature conversion device - Google Patents
Diaphragm gas meter with concealed type mechanical temperature conversion device Download PDFInfo
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- CN203758566U CN203758566U CN201420118858.3U CN201420118858U CN203758566U CN 203758566 U CN203758566 U CN 203758566U CN 201420118858 U CN201420118858 U CN 201420118858U CN 203758566 U CN203758566 U CN 203758566U
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- diaphragm
- pull rod
- gas meter
- conversion device
- guide bearing
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Abstract
A diaphragm gas meter with a concealed type mechanical temperature conversion device is composed of a shell part and a movement assembly part, wherein a movement cavity is internally provided with a diaphragm assembly, a diaphragm rocker panel and a diaphragm pressing plate; the diaphragm rocker panel and a rocker arm with a guide bearing are in press fitting through a flag pole; the rocker arm with the guide bearing is connected with a movable pull rod column on a compensation plate assembly through a pull rod; a sun gear in the compensation plate assembly is connected with a passing wheel and a pulling rod gear; the sun gear stirs a valve cover to rotate and is in rigid connection with an anti-reversal plate on the upper face of the sun gear; the anti-reversal plate is provided with the movable pull rod column, a compensation plate base and a compensation plate; the compensation plate is formed by winding a temperature-sensitive composite bimetal sheet to be an Archimedes spiral reed; the center of the spiral reed is clamped and fixed to the anti-reversal plate through the compensation plate base; the external extending linear end of the spiral reed is directly inserted into a guide groove in the lower portion of the movable pull rod column; a circular shaft in the middle of the movable pull rod column is clamped in an arc groove of the anti-reversal plate; the upper portion of the movable pull rod column is connected with the rocker arm with the guide bearing through the pull rod. The diaphragm gas meter with the concealed type mechanical temperature conversion device is an updated product of ordinary basic gas meters.
Description
Technical field
The utility model relates to a kind of diaphragm gas meter, refers in particular to a kind of band built-in mechanical temperature conversion device diaphragm gas meter.
Background technology
Diaphragm gas meter is a kind ofly to measure the measuring apparatus of combustion gas volume by inner inner membrance storehouse (being commonly called as revolution volume) that can soft change; It has the features such as accurate measurement, safe and reliable, life cycle is long.The metering performance of common diaphragm gas meter is calibrating under specified conditions (20 DEG C), but uses under condition of different temperatures, and its metering is just inaccurate.General gas meter, flow meter is all arranged on outdoor, and outdoor temperature can along with from different places, season different temperature Change very large; Especially in the north, winter temperature, below 0 DEG C, reaches more than 5 months; Summer temperature is more than 30 DEG C, less than 3 months.Carry out metering gas with common diaphragm gas meter like this, both sides of supply and demand cannot reach balance throughout the year.Mechanical compensation diaphragm gas meter is set up mechanical temperature conversion device exactly in the movement group of common diaphragm gas meter inside, and it has the feature of common diaphragm gas meter, and has realized gas quantity matter equivalence metering under condition of different temperatures.It is combustible gas metering arrangement of new generation.When mechanical compensation diaphragm gas meter is worked under different temperatures, compensating plate in mechanical temperature conversion device, vary with temperature and be offset, change diaphragm reciprocating motion length, namely change the size in metered volume-inner membrance storehouse, just can realize gas quantity matter equivalence metering under condition of different temperatures.Both sides of supply and demand economic interests are ensured.Diaphragm gas meter in the market has various structures.Its revolving valve, simple in structure, better performances; Volume is little, by wide selection.Chinese patent once disclosed the related data of several " mechanical temp compensation gasmeters ", but all had some stability problems, especially revolving valve mechanical temp compensation gasmeter.In a word, up to the present, the gas meter, flow meter with mechanical temperature compensate function does not all also have mass marketed, has no relevant report yet.
Summary of the invention
The purpose of this utility model is to solve revolving valve structure diaphragm gas meter, under different temperatures, and the problem of equivalent metering gas value error.For this reason, provide a kind of mechanical type compensation diaphragm gas meter.This gas meter, flow meter is the same with common base table, has the features such as simple in structure, safe and reliable, accurate measurement, life cycle be long.Also can make the carrier table of various intelligent meters, be the good product that common base table updates.
For addressing the above problem, the technical solution adopted in the utility model is: a kind of band built-in mechanical temperature conversion device diaphragm gas meter, it is made up of housing part and cartridge assemblies part, and cartridge assemblies part comprises core body, core body cover plate, diaphragm unit, diaphragm pressing plate, diaphragm rocker, flagpole, flagpole O-ring seal, band guide bearing rocking arm, escape pipe, escape pipe O-ring seal, pull bar, valve gap, valve seat, compensating plate assembly, bracket component; Compensating plate assembly comprises central gear, active pull rod post, compensation bar, compensating plate, anti-reverse rotating disk; Diaphragm unit comprises collapser, diaphragm and parallel-plate; Movement body cavity is in-built has diaphragm unit, diaphragm rocker, diaphragm pressing plate to make core body inner chamber form two air chambers; Diaphragm rocker becomes to be rigidly connected after press-fiting by flagpole with band guide bearing rocking arm; Be connected with the active pull rod post on compensating plate assembly by pull bar with guide bearing rocking arm; Central gear in compensating plate assembly and third wheel, dead man gear couplings, then by magnetic coupling transmission, rotate through gear set drive counter, realize mechanical count; Central gear is stirred again valve gap rotation, distributes turnover gas, and is rigidly connected with anti-reverse rotating disk above; Anti-reverse rotating disk is provided with moveable pull bar post, compensation bar and compensating plate; Compensating plate is to be coiled into Archimedean screw reed with temperature-sensitive bimetal composite sheet; Spiral reed center is fixed on anti-reverse rotating disk by compensating bar clamping thermofussion welding, also becomes to be rigidly connected, and the outside rectilinear end that extends is directly inserted in the guide groove of active pull rod post bottom; The circular shaft at active pull rod post middle part is stuck in anti-reverse rotating disk deep-slotted chip breaker, and top is connected by pull bar and band guide bearing rocking arm.
This core technology with built-in mechanical temperature conversion device diaphragm gas meter is the setting of compensating plate: compensating plate is to turn to Archimedean screw shape reed with temperature-sensitive bimetal composite sheet, the spiral center-side of compensating plate clamps and fixes with anti-reverse rotating disk thermofussion welding by compensating bar, and one-tenth is rigidly connected; The outside rectilinear end that extends, is directly inserted in the guide groove of active pull rod post bottom; The rigidity of compensating plate own is fine, makes active pull rod post location reliable; The circular shaft at active pull rod post middle part is stuck in anti-reverse rotating disk deep-slotted chip breaker, can slide along deep-slotted chip breaker; Active pull rod post top is connected with band guide bearing rocking arm by pull bar.In the time of temperature variation, compensating plate rectilinear end, to inside and outside skew, is stirred active pull rod post and is moved.Temperature-resistant, compensating plate is also motionless, and active pull rod post is played to location and fixation.
Mechanical compensation diaphragm gas meter, is a kind of movement group top at common steel shell diaphragm gas meter, and the gas meter, flow meter of built-in mechanical temperature conversion device is set.Namely, in the cartridge assemblies of revolving valve structure, central gear and anti-reverse rotating disk are rigidly connected, and active pull rod post can slide in anti-reverse rotating disk deep-slotted chip breaker, fixing by compensating plate location in the time of uniform temperature.Like this, under specified temp (20 DEG C) condition, the place-centric distance of active pull rod post, is exactly the centre distance of common base table central gear pull bar post; Its size has determined diaphragm group to-and-fro movement stroke distances, has namely determined gas meter, flow meter metered volume---the size of inner membrance storehouse (revolution volume).
This diaphragm gas meter belongs to volumetric metering device, is with a kind of inner membrance storehouse that can soft change, measures combustion gas volume.Namely diaphragm moves back and forth volume-inner membrance storehouse (being commonly called as revolution volume) of once containing.Standard regulation, under specified conditions (20 DEG C), the actual revolution of gas meter, flow meter volume is no more than with the difference that volume is turned round in theoretical calculating ± and 5%.In fact, common base table is when different temperatures (T), and subtle change also will occur its revolution volume, and, when temperature is high, dwindle, when temperature is low, increase.We know: gas volume and temperature, pressure are relevant, and when different temperatures, different pressures, gas volume alters a great deal.Therefore, identical at pressure, when temperature is different, turn round exactly constancy of volume, also can produce very large amount matter error in dipping.Now taking rock gas as example: analyze from fuel gases calorific value angle: at pressure, as the constant situation of 101.325kPa, when temperature is 20 DEG C, its density is 0.723kg/m
3, when temperature is 0 DEG C, its density is 0.7758kg/m
3, when namely temperature drops to 0 DEG C from 20 DEG C, the volume of rock gas, will dwindle 6.8%.So with the volume of common base table metering rock gas, under cryogenic conditions, in fact, rock gas just loss is very large.
This mechanical compensation diaphragm gas meter, utilize exactly temperature-sensitive bimetal composite sheet to responsive to temperature characteristic, turn to Archimedean screw shape reed-compensating plate, compensating plate center-side is fixed, outer linear end is directly inserted in the guide groove of active pull rod post bottom, stir active pull rod post and move, in fact exactly common base table central gear upper connecting rod post is changed into transportable active pull rod post, its location, fixing determined by compensating plate.Like this, in the time that temperature drops to 0 DEG C from 20 DEG C, compensating plate outer linear end is offset inwards, stirring active pull rod post moves inwards, active pull rod post centre distance is reduced, thereby diaphragm group reciprocating motion length is reduced, changed the size in gas meter, flow meter metered volume-inner membrance storehouse, namely make to have turned round volume-diminished.So from fuel gases calorific value angle, mechanical compensation diaphragm gas meter reading in the time of 0 DEG C is consistent with reading 20 DEG C time, its fuel gases calorific value is equivalence just.
General gas meter, flow meter is all arranged on outdoor, all will use throughout the year under different temperatures.And summer temperature is high, need negative compensation, but the time is short; And winter temperature is low, need to just compensate, but the time is long.Mechanical compensation diaphragm gas meter, just can accomplish under condition of different temperatures, fuel gases calorific value equivalence metering.
This principle of work with built-in mechanical temperature conversion device diaphragm gas meter is the same with common base table: when user opens with air valve, gas meter, flow meter interior diaphragm assembly both sides produce pressure reduction, form acting force, the motion of promotion diaphragm unit, by diaphragm rocker, flagpole, band guide bearing rocking arm, pull bar, the moving central gear rotation of active pull rod cornice, central gear is stirred valve gap (being also guiding valve) and is rotated, and distributes turnover gas, alternately passes in and out left and right air chamber; In addition, central gear and third wheel, dead man gear couplings, by magnetic coupling transmission, rotate through gear set drive counter, realizes mechanical count.
Brief description of the drawings
Accompanying drawing 1 is the present embodiment movement group part schematic diagram.
Accompanying drawing 2 is the present embodiment movement group part vertical views.
Accompanying drawing 3 is the present embodiment compensating plate assembly schematic diagram.
Accompanying drawing 4 is the anti-reverse rotary disc assembly schematic diagram of the present embodiment.
Accompanying drawing 5 is the present embodiment central gear schematic diagram.
Accompanying drawing 6 is the present embodiment band guide bearing rocking arm schematic diagram.
In figure: 1, bracket component, 2, compensating plate assembly, 3, central shaft, 4, pull bar, 5, escape pipe, 6, escape pipe O-ring seal, 7, band guide bearing rocking arm, 8, flagpole, 9, flagpole O-ring seal, 10, diaphragm unit, 11, diaphragm rocker, 12, diaphragm pressing plate, 13, valve gap, 14, valve seat, 15, core body, 16, core body cover plate, 17, central gear, 18, compensating plate, 19, compensation bar, 20, active pull rod post, 21, anti-reverse rotating disk.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is remake to description.
Referring to accompanying drawing 1-6, a kind of band built-in mechanical temperature conversion device diaphragm gas meter, it is made up of housing part and cartridge assemblies part, and cartridge assemblies part comprises core body 15, core body cover plate 16, diaphragm unit 10, diaphragm pressing plate 12, diaphragm rocker 11, flagpole 8, flagpole O-ring seal 9, band guide bearing rocking arm 7, escape pipe 5, escape pipe O-ring seal 6, pull bar 4, valve gap 13, valve seat 14, compensating plate assembly 2, bracket component 1; Compensating plate assembly 2 comprises central gear 17, active pull rod post 20, compensation bar 19, compensating plate 18, anti-reverse rotating disk 21; Diaphragm unit 10 comprises collapser, diaphragm and parallel-plate; Diaphragm unit 10, diaphragm rocker 11, diaphragm pressing plate 12 are housed in core body 15 chambeies makes core body 15 inner chambers form two air chambers; Diaphragm rocker 11 becomes to be rigidly connected after press-fiting by flagpole 8 with band guide bearing rocking arm 7; Be connected with the active pull rod post 20 on compensating plate assembly 2 by pull bar 4 with guide bearing rocking arm 7; Central gear 17 in compensating plate assembly 2 and third wheel, dead man gear couplings, then by magnetic coupling transmission, rotate through gear set drive counter, realize mechanical count; Central gear 17 is stirred again valve gap 13 and is rotated, and distributes turnover gas, and is rigidly connected with anti-reverse rotating disk 21 above; Anti-reverse rotating disk 21 is provided with moveable pull bar post 20, compensation bar 19 and compensating plate 18; Compensating plate 18 is to be coiled into Archimedean screw reed with temperature-sensitive bimetal composite sheet; Spiral reed center clamps thermofussion welding and is fixed on anti-reverse rotating disk 21 by compensating bar 19, also becomes to be rigidly connected, and the outside rectilinear end that extends is directly inserted in active pull rod post 20 bottom guide grooves; The circular shaft at active pull rod post 20 middle parts is stuck in anti-reverse rotating disk 21 deep-slotted chip breakers, and top is connected by pull bar 4 and band guide bearing rocking arm 7.
Referring to accompanying drawing 1-5, in the time of temperature variation, the rectilinear end of compensating plate 18 is offset, directly stir active pull rod post 20 slides inside and outside deep-slotted chip breaker, active pull rod post 20 centre distance have just changed like this, thereby change the reciprocating distance of diaphragm unit, namely changed the size in metered volume-inner membrance storehouse, realized machinery (temperature) compensation object.
Referring to accompanying drawing 1-4, described anti-reverse rotating disk 21, is provided with anti-reverse-rotation device.
Referring to accompanying drawing 3, described central gear 17 and above anti-reverse rotating disk 21 post holes match, and fix with self-tapping screw, and realization is rigidly connected.
Referring to accompanying drawing 4, described compensating plate 18 is to be wound into spiral of Archimedes shape by two kinds of different temperature-sensitive bimetal composite sheets of expansion coefficient.It is harmomegathus sensitivity in the time of temperature variation, when intensification, to the little one side skew of expansion coefficient; When cooling, to the large one side skew of contraction coefficient.Bias size is just relevant with temperature variation size, also relevant with bimetallic strip physical length (namely around the number of turn), width, thickness etc.; In addition, thermosensitive bimetal coiled, its inner is spiral center namely, after being clamped, fixes with anti-reverse rotating disk 21 hot welds by compensation bar 19, and outside is in line to hold and is directly inserted in the guide groove of active pull rod post bottom.Like this, compensating plate 18 below anti-reverse rotating disk 21, geocoded activity pull bar post 20, stability is better.
Referring to accompanying drawing 5, described central gear 17 lengthens cover shaft portion and is provided with inversion-prevention dropping device, matches with central shaft 3, and central gear 17 becomes entirety above, and in combustion gas, impurity can not enter between axis hole, and impact is rotated.
Referring to accompanying drawing 6, described band guide bearing rocking arm 7 is set up guide bearing gear, and it had both had guide shaft, location, has played and has prevented from swinging and vibration when flagpole 8 from rotating, and can prevent that again in combustion gas, impurity enters in flagpole 8 axis holes, affects flagpole 8 and rotates.
Claims (6)
1. a band built-in mechanical temperature conversion device diaphragm gas meter, it is made up of housing part and cartridge assemblies part, and cartridge assemblies part comprises core body (15), core body cover plate (16), diaphragm unit (10), diaphragm pressing plate (12), diaphragm rocker (11), flagpole (8), flagpole O-ring seal (9), band guide bearing rocking arm (7), escape pipe (5), escape pipe O-ring seal (6), pull bar (4), valve gap (13), valve seat (14), compensating plate assembly (2), bracket component (1); Compensating plate assembly (2) comprises central gear (17), active pull rod post (20), compensation bar (19), compensating plate (18), anti-reverse rotating disk (21); Diaphragm unit (10) comprises collapser, diaphragm and parallel-plate; It is characterized in that: diaphragm unit (10), diaphragm rocker (11), diaphragm pressing plate (12) are housed in core body (15) chamber and make core body (15) inner chamber form two air chambers; Diaphragm rocker (11) becomes to be rigidly connected after press-fiting by flagpole (8) with band guide bearing rocking arm (7); Band guide bearing rocking arm (7) is connected with the active pull rod post (20) on compensating plate assembly (2) by pull bar (4); Central gear (17) in compensating plate assembly (2) and third wheel, dead man gear couplings, then by magnetic coupling transmission, rotate through gear set drive counter, realize mechanical count; Central gear (17) is stirred again valve gap (13) rotation, distributes turnover gas, and is rigidly connected with anti-reverse rotating disk (21) above; Anti-reverse rotating disk (21) is provided with moveable pull bar post (20), compensation bar (19) and compensating plate (18); Compensating plate (18) is to be coiled into Archimedean screw reed with temperature-sensitive bimetal composite sheet; Spiral reed center is fixed on anti-reverse rotating disk (21) above by compensating bar (19) clamping thermofussion welding, also becomes to be rigidly connected, and the outside rectilinear end that extends is directly inserted in the guide groove of active pull rod post (20) bottom; The circular shaft at active pull rod post (20) middle part is stuck in anti-reverse rotating disk (21) deep-slotted chip breaker, and top is connected by pull bar (4) and band guide bearing rocking arm (7).
2. band built-in mechanical temperature conversion device diaphragm gas meter according to claim 1, is characterized in that: described anti-reverse rotating disk (21), is provided with anti-reverse-rotation device.
3. band built-in mechanical temperature conversion device diaphragm gas meter according to claim 1, is characterized in that: described central gear (17) and above anti-reverse rotating disk (21) post hole match, and fix with self-tapping screw, and realization is rigidly connected.
4. band built-in mechanical temperature conversion device diaphragm gas meter according to claim 1, it is characterized in that: described compensating plate (18) is to be wound into spiral of Archimedes shape by two kinds of different temperature-sensitive bimetal composite sheets of expansion coefficient, and its inner is spiral center namely.
5. band built-in mechanical temperature conversion device diaphragm gas meter according to claim 1, it is characterized in that: described central gear (17) lengthens cover shaft portion and is provided with inversion-prevention dropping device, match with central shaft (3), central gear (17) becomes entirety above.
6. band built-in mechanical temperature conversion device diaphragm gas meter according to claim 1, is characterized in that: described band guide bearing rocking arm (7) is set up guide bearing gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118858.3U CN203758566U (en) | 2014-03-13 | 2014-03-13 | Diaphragm gas meter with concealed type mechanical temperature conversion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118858.3U CN203758566U (en) | 2014-03-13 | 2014-03-13 | Diaphragm gas meter with concealed type mechanical temperature conversion device |
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| Publication Number | Publication Date |
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| CN203758566U true CN203758566U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420118858.3U Expired - Fee Related CN203758566U (en) | 2014-03-13 | 2014-03-13 | Diaphragm gas meter with concealed type mechanical temperature conversion device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840299A (en) * | 2017-03-28 | 2017-06-13 | 贵州天益仪表科技有限公司 | A kind of method of combustion gas meter anti-theft and gas meter, flow meter used |
| CN106932042A (en) * | 2017-04-27 | 2017-07-07 | 德力西集团仪器仪表有限公司 | A kind of gas meter movement and aluminum hull gas meter, flow meter and iron-clad gas meter, flow meter with the movement |
| CN112325964A (en) * | 2020-10-28 | 2021-02-05 | 上海真兰仪表科技股份有限公司 | Temperature compensation gas meter |
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
| CN112859275A (en) * | 2021-01-20 | 2021-05-28 | 中国科学院西安光学精密机械研究所 | Cold optics self-adaptation thermal deformation compensation structure based on Archimedes spiral |
-
2014
- 2014-03-13 CN CN201420118858.3U patent/CN203758566U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840299A (en) * | 2017-03-28 | 2017-06-13 | 贵州天益仪表科技有限公司 | A kind of method of combustion gas meter anti-theft and gas meter, flow meter used |
| CN106932042A (en) * | 2017-04-27 | 2017-07-07 | 德力西集团仪器仪表有限公司 | A kind of gas meter movement and aluminum hull gas meter, flow meter and iron-clad gas meter, flow meter with the movement |
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
| CN112325964A (en) * | 2020-10-28 | 2021-02-05 | 上海真兰仪表科技股份有限公司 | Temperature compensation gas meter |
| CN112859275A (en) * | 2021-01-20 | 2021-05-28 | 中国科学院西安光学精密机械研究所 | Cold optics self-adaptation thermal deformation compensation structure based on Archimedes spiral |
| CN112859275B (en) * | 2021-01-20 | 2021-12-14 | 中国科学院西安光学精密机械研究所 | Cold optics self-adaptation thermal deformation compensation structure based on Archimedes spiral |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhejiang Sanzhou Gas Meter Limited Company Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Zhejiang Sanzhou Gas Meter Limited Company Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20160313 |