CN204854850U - Oval gear flowmeter entirely keeps warm - Google Patents
Oval gear flowmeter entirely keeps warm Download PDFInfo
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- CN204854850U CN204854850U CN201520579607.XU CN201520579607U CN204854850U CN 204854850 U CN204854850 U CN 204854850U CN 201520579607 U CN201520579607 U CN 201520579607U CN 204854850 U CN204854850 U CN 204854850U
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- inner chamber
- insulation jacket
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- shaft coupling
- casing
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Abstract
The utility model discloses an oval gear flowmeter entirely keeps warm, including casing and the fixed mounting protecgulum in the casing top, be equipped with to keep warm in the outside of casing and press from both sides cover no. 1, be equipped with to keep warm in the outside of protecgulum and press from both sides cover no. 2, keep warm press from both sides cover no. 1 about the side be equipped with heat source import and heat source export respectively, keep warm press from both sides cover no. 2 about the side be equipped with imported pipeline and export pipeline respectively, press from both sides the cover and be equipped with the baffle between one with keeping warm at the casing, the baffle will keep warm and press from both sides cover no. 1 and the inner chamber between the casing and separate into inner chamber no. 1 and inner chamber no. 2, left end and the inner chamber intercommunication of imported pipeline, the right -hand member and two intercommunications of inner chamber of export pipeline, the inside of casing be equipped with the driving gear and with initiative gear engagement's wheel piece. The utility model discloses the part that has the medium to persist to casing, protecgulum etc. All sets up the clamp cover that keeps warm, and the medium of dependable flow meter body fully dissolves, and each rotates the piece non -resistance and rotates to the measuring accuracy of dependable flow meter, and the life of improvement flowmeter.
Description
Technical field
The utility model relates to flowmeter technology field, particularly relates to a kind of all risk insurance temperature oval gear flowmeter.
Background technology
Oval gear flowmeter is one of typical volumeter, use reliable, accuracy is high, strong to adaptability for working condition such as the range of viscosities of measured medium and temperature ranges, therefore range of application is very wide.
As shown in Figure 1, common insulation jacket oval gear flowmeter is housing heat preserving type.Namely insulation jacket 1 is located at outside housing 3, and the both sides of insulation jacket 1 are provided with thermal source import 2, outlet 9, and flowmeter protecgulum 4 is conventional type, and be heat radiation protection counter 12, flowmeter is provided with radiating tube 6.The inner chamber 10 that insulation jacket 1 is formed is communicated with thermal source import 2 and outlet 9, and heat source medium passes into from import 2, retains certain hour, flow out from outlet 9 in inner chamber 10.
Because the insulation jacket flowmeter of routine is only provided with insulation jacket at housing 3, although can heat the medium in measurement chamber, the medium in flow meter protecgulum chamber can not fully heat.So when flowmeter is started working, in housing 3, medium dissolves through heating, driving gear 15 can normal rotary work, but because the medium in protecgulum chamber does not dissolve completely, the magnetic shaft coupling 13 adopted is subject to very large resistance when rotating, and then affects rotation and the measuring accuracy of flowmeter entirety.Under serious conditions, driving gear 15 drives the wheel sheet 16 of shaft coupling 13 to rotate by force, thus makes to skid between wheel sheet 16 and shaft coupling 13, and cause driving error, final counter 12 shows deviation.
What the magnetic shaft coupling 13 that Conventional meters configures adopted is ordinary ferrite magnet steel, low price, but thermal adaptability is poor, and general serviceability temperature is no more than 120 DEG C, and exceed this temperature, then magnetic declines rapidly, easily causes driving error.
For ensureing to rotate flexibly, what magnetic shaft coupling 13 and radiating tube 6 adopted is ball bearing, but common rolling bearing serviceability temperature is all no more than 100 DEG C.Under high-temperature condition, the railway grease of bearing easily dissolves, and bearing loses lubrication and rotary resistance increases; And due to high-temperature expansion, the gap smaller between bearing and axle, bearing seat, can cause the resistance of rotation to increase equally, even " locking ", flowmeter error in dipping is caused to increase or fault.
Utility model content
The utility model object is exactly the defect in order to make up prior art, provides a kind of all risk insurance temperature oval gear flowmeter.
The utility model is achieved through the following technical solutions:
A kind of all risk insurance temperature oval gear flowmeter, include housing and be fixedly mounted on the protecgulum above housing, insulation jacket one is provided with in the outside of housing, insulation jacket two is provided with in the outside of protecgulum, thermal source import and thermal source outlet is respectively equipped with at the left and right sides of insulation jacket one, inlet ductwork and export pipeline is respectively equipped with at the left and right sides of insulation jacket two, dividing plate is provided with between housing and insulation jacket one, inner chamber between insulation jacket one and housing is separated into inner chamber one and inner chamber two by dividing plate, the left end of described inlet ductwork is communicated with inner chamber one, the right-hand member of export pipeline is communicated with inner chamber two, heat source medium flows to inner chamber one from thermal source import, insulation jacket two is entered through inlet ductwork, inner chamber two is flow to again through export pipeline, finally flow out from thermal source outlet.Thus, the flow circuit of thermal source is formed.The wheel sheet being provided with driving gear in the inside of housing and engaging with driving gear, described wheel sheet is arranged on the lower end of magnetic shaft coupling, described magnetic shaft coupling is through protecgulum and insulation jacket two, cylindrical shell is fixed with above insulation jacket two, described magnetic shaft coupling is fixed on cylindrical shell, in the upper end of magnetic shaft coupling, bearing is installed, above cylindrical shell, is provided with radiating tube, at the top of radiating tube, counter is installed.
Described magnetic shaft coupling is high temperature SmCo magnet steel shaft coupling, to ensure the magnetic moment of torsion under high temperature.
Described bearing adopts graphite bushing, rotates to adapt to high temperature.
Housing and the protecgulum outside of the utility model flowmeter transmitters portion in contact with the electrolyte all increase insulation jacket, interconnect between the insulation jacket of different piece, form the current global mechanism passage of thermal source.The utility model is heated by abundant flow meter cavity, makes the medium in cavity all dissolve and surround, thus each rotating part of guaranteed flow meter can normal rotation, and then ensure that the normal work of flowmeter.
Adopt the body of all risk insurance temperature chuck pattern, fully can heat the All Media of cavity, avoid medium not melt causing the resistance to driving member, ensure the reliability of each connection.
To the on-the-spot heating arrangement of use without extra demand, apply more extensive.
Adopt the SmCo magnet steel that thermal adaptability is higher, normally can work at the temperature of the highest 250 DEG C, higher to the adaptability of operating mode.
Adopt the slip graphite bushing that high-temperature expansion coefficient is very little, suitably adjust the tolerance on fit of tumbler according to serviceability temperature, avoid the transmission resistances such as " locking " under worst hot case, flowmeter reliability is higher.
The utility model has the advantages that: the utility model all arranges insulation jacket to the parts that housing, protecgulum etc. have medium to retain, the medium of guaranteed flow meter body fully dissolves, each tumbler non-resistance rotates, thus the measuring accuracy of guaranteed flow meter, and improve the serviceable life of flowmeter.
Accompanying drawing explanation
Fig. 1 is the structural drawing of common oval gear flowmeter.
Fig. 2 is the utility model structural drawing.
Fig. 3 is the utility model vertical view.
Embodiment
As Fig. 2, shown in 3, a kind of all risk insurance temperature oval gear flowmeter, the protecgulum 4 including housing 3 and be fixedly mounted on above housing 3, insulation jacket one 1-1 is provided with in the outside of housing 3, insulation jacket two 1-2 is provided with in the outside of protecgulum 4, thermal source import 2 and thermal source outlet 9 is respectively equipped with at the left and right sides of insulation jacket one 1-1, inlet ductwork 5 and export pipeline 7 is respectively equipped with at the left and right sides of insulation jacket two 1-2, dividing plate 14 is provided with between housing 3 and insulation jacket one 1-1, inner chamber between insulation jacket one 1-1 and housing 3 is separated into inner chamber one 10-1 and inner chamber two 10-2 by dividing plate 14, the left end of described inlet ductwork 5 is communicated with inner chamber one 10-1, the right-hand member of export pipeline 7 is communicated with inner chamber two 10-2, the wheel sheet 16 being provided with driving gear 15 in the inside of housing 3 and engaging with driving gear 15, described wheel sheet 16 is arranged on the lower end of magnetic shaft coupling 13, described magnetic shaft coupling 13 is through protecgulum 4 and insulation jacket two 1-2, cylindrical shell 17 is fixed with above insulation jacket two 1-2, described magnetic shaft coupling 13 is fixed on cylindrical shell 17, in the upper end of magnetic shaft coupling 13, bearing 11 is installed, radiating tube 6 is provided with above cylindrical shell 17, at the top of radiating tube 6, counter 12 is installed.
Described magnetic shaft coupling 13 is high temperature SmCo magnet steel shaft coupling, to ensure the magnetic moment of torsion under high temperature.
Described bearing 11 adopts graphite bushing, rotates to adapt to high temperature.
Claims (3)
1. an all risk insurance temperature oval gear flowmeter, it is characterized in that: include housing and be fixedly mounted on the protecgulum above housing, insulation jacket one is provided with in the outside of housing, insulation jacket two is provided with in the outside of protecgulum, thermal source import and thermal source outlet is respectively equipped with at the left and right sides of insulation jacket one, inlet ductwork and export pipeline is respectively equipped with at the left and right sides of insulation jacket two, dividing plate is provided with between housing and insulation jacket one, inner chamber between insulation jacket one and housing is separated into inner chamber one and inner chamber two by dividing plate, the left end of described inlet ductwork is communicated with inner chamber one, the right-hand member of export pipeline is communicated with inner chamber two, the wheel sheet being provided with driving gear in the inside of housing and engaging with driving gear, described wheel sheet is arranged on the lower end of magnetic shaft coupling, described magnetic shaft coupling is through protecgulum and insulation jacket two, cylindrical shell is fixed with above insulation jacket two, described magnetic shaft coupling is fixed on cylindrical shell, in the upper end of magnetic shaft coupling, bearing is installed, radiating tube is provided with above cylindrical shell, at the top of radiating tube, counter is installed.
2. a kind of all risk insurance temperature oval gear flowmeter according to claim 1, is characterized in that: described magnetic shaft coupling is high temperature SmCo magnet steel shaft coupling.
3. a kind of all risk insurance temperature oval gear flowmeter according to claim 1, is characterized in that: described bearing adopts graphite bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579607.XU CN204854850U (en) | 2015-08-04 | 2015-08-04 | Oval gear flowmeter entirely keeps warm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579607.XU CN204854850U (en) | 2015-08-04 | 2015-08-04 | Oval gear flowmeter entirely keeps warm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204854850U true CN204854850U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520579607.XU Active CN204854850U (en) | 2015-08-04 | 2015-08-04 | Oval gear flowmeter entirely keeps warm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204854850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759954A (en) * | 2018-05-28 | 2018-11-06 | 天信仪表集团有限公司 | A kind of double waist wheel gas flowmeters and installation method |
-
2015
- 2015-08-04 CN CN201520579607.XU patent/CN204854850U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759954A (en) * | 2018-05-28 | 2018-11-06 | 天信仪表集团有限公司 | A kind of double waist wheel gas flowmeters and installation method |
| CN108759954B (en) * | 2018-05-28 | 2024-03-22 | 天信仪表集团有限公司 | Double-waist-wheel gas flowmeter and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |