CN204788531U - Screw flowmeter of polyurethane processing host computer - Google Patents
Screw flowmeter of polyurethane processing host computer Download PDFInfo
- Publication number
- CN204788531U CN204788531U CN201520547916.9U CN201520547916U CN204788531U CN 204788531 U CN204788531 U CN 204788531U CN 201520547916 U CN201520547916 U CN 201520547916U CN 204788531 U CN204788531 U CN 204788531U
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- screw
- flowmeter
- shell
- screw rod
- main frame
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Abstract
The utility model discloses a screw flowmeter of polyurethane processing host computer, including the shell, the appearance intracavity of shell is equipped with two intermeshing's screw rod, and one of them screw rod passes through the screw shaft to be connected on rolling contact bearing, wears to be equipped with a sensing wheel on the screw shaft, and the sensing takes turns to and is equipped with the sensor, and the appearance chamber access & exit department of shell all is equipped with chamber lid, all is equipped with O shape sealing washer between the appearance chamber access & exit of chamber lid and shell. The utility model discloses the screw flowmeter belongs to displacement meter, and this kind of flowmeter is when measuring flow, and the fluid passes two along the axial flow during the clearance of screw rod, it is rotatory to promote two screw rods, forms independent appearance chamber, two when the screw rod was rotatory, the convection cell constantly sucked and discharges, and simultaneously, the sensor carries out the scanning survey to the sensing wheel. The operating pressure height of this kind of flowmeter, carrying capacity fall very lowly, can not cause pressure pulse and flow pulse, and measurement accuracy is high.
Description
Technical field
The utility model relates to polyurethane processing main process equipment, particularly a kind of screw flowmeter of polyurethane processing main frame.
Background technology
For accurately measuring the liquid charging stock carried in the duct, improve measuring accuracy, modern polyurethane equipment is also generally equipped with various flowmeter, conventional flow is in respect of target type meter, differential pressure flowmeter, rotary flowmeter, volumeter etc., wherein volumeter is also known as fixed displacement flowmeter, and it is that measuring accuracy is higher in flowmeter instrument, and cost performance is high, therefore, the configuration of polyurethane industrial equipment often selects this flowmeter.
Utility model content
The purpose of this utility model is the above-mentioned defect for prior art, provides that a kind of working pressure is high, compression resistance falls very low, can not build-up of pressure pulse and flow pulse, and measuring accuracy is high, reproducible, the screw flowmeter that Applicable temperature scope is wide.
For solving the above-mentioned defect of prior art, the technical scheme that the utility model provides is: a kind of screw flowmeter of polyurethane processing main frame, comprise shell, two intermeshing screw rods are provided with in the cavity volume of described shell, wherein a described screw rod is connected on bearings with rolling contact by screw shaft, described screw shaft is equipped with a sensing wheel, described sensing wheel is provided with sensor, the cavity volume gateway place of described shell is equipped with a chamber lid, is equipped with O-ring seals between described chamber lid and the cavity volume gateway of described shell.
One as the screw flowmeter of the utility model polyurethane processing main frame is improved, and wherein the diameter of a described screw rod is greater than the diameter of an other described screw rod.
One as the screw flowmeter of the utility model polyurethane processing main frame is improved, the cavity volume inwall of described shell is provided with the fixed head for installing a less screw rod of diameter, and the screw shaft of the described screw rod that diameter is less is fixed on described fixed head.
One as the screw flowmeter of the utility model polyurethane processing main frame is improved, and the surface of described shell is provided with a connector.
One as the screw flowmeter of the utility model polyurethane processing main frame is improved, when fluid flows through the gap of two described screw rods vertically, promote two screw rods and rotate, form independently cavity volume, when two described screw rods rotate, convection cell constantly sucks and discharges.
One as the screw flowmeter of the utility model polyurethane processing main frame is improved, and described sensor carries out scanning survey to described sensing wheel.
Compared with prior art, the utility model has the advantages that: the utility model screw flowmeter belongs to volumeter, this kind of flowmeter is when measuring flow, when fluid flows through the gap of two described screw rods vertically, promote two screw rods and rotate, form independently cavity volume, when two described screw rods rotate, convection cell constantly sucks and discharges, and meanwhile, sensor carries out scanning survey to sensing wheel.The working pressure of this kind of flowmeter is high, compression resistance falls very low, can not build-up of pressure pulse and flow pulse, measuring accuracy is high, error≤0.1% in whole measurement range, be 20m ㎡/s for viscosity, 1:150, in gamut, trueness error≤± 0.2%, reproducible, output signal is not by temperature restraint, Applicable temperature scope is wide, and use electronic equipment display mode of operation, operational reliability is high.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Reference numeral title: 1, shell 2, screw rod 3, screw shaft 4, bearings with rolling contact 5, sensing wheel 6, connector 7, chamber lid 8, O-ring seals 9, fixed head.
Embodiment
Just with reference to the accompanying drawings the utility model is further described below.
As shown in Figure 1, a kind of screw flowmeter of polyurethane processing main frame, comprise shell 1, two intermeshing screw rods 2 are provided with in the cavity volume of shell 1, wherein a screw rod 2 is connected on bearings with rolling contact 4 by screw shaft 3, and screw shaft 3 is equipped with a sensing wheel 5, sensing wheel 5 is provided with sensor, the cavity volume gateway place of shell 1 is equipped with a chamber lid 7, is equipped with O-ring seals 8 between chamber lid 7 and the cavity volume gateway of shell 1.
Preferably, wherein the diameter of a screw rod 2 is greater than the diameter of an other screw rod 2.
Preferably, the cavity volume inwall of shell 1 is provided with the fixed head 9 for installing a less screw rod 2 of diameter, and the screw shaft one end of the screw rod 2 that diameter is less is fixed on fixed head 9.
Preferably, the surface of shell 1 is provided with a connector 6.
Preferably, when fluid flows through the gap of two screw rods 2 vertically, promote two screw rods 2 and rotate, form independently cavity volume, when two screw rods 2 rotate, convection cell constantly sucks and discharges.
Preferably, sensor carries out scanning survey to sensing wheel 5.
The utility model screw flowmeter belongs to volumeter, this kind of flowmeter is when measuring flow, when fluid flows through the gap of two screw rods 2 vertically, promote two screw rods 2 to rotate, form independently cavity volume, when two screw rods 2 rotate, convection cell constantly sucks and discharges, meanwhile, sensor carries out scanning survey to sensing wheel 5.The working pressure of this kind of flowmeter is high, compression resistance falls very low, can not build-up of pressure pulse and flow pulse, measuring accuracy is high, error≤0.1% in whole measurement range, be 20m ㎡/s for viscosity, 1:150, in gamut, trueness error≤± 0.2%, reproducible, output signal is not by temperature restraint, Applicable temperature scope is wide, and use electronic equipment display mode of operation, operational reliability is high.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (6)
1. the screw flowmeter of a polyurethane processing main frame, comprise shell, it is characterized in that, two intermeshing screw rods are provided with in the cavity volume of described shell, wherein a described screw rod is connected on bearings with rolling contact by screw shaft, described screw shaft is equipped with a sensing wheel, and described sensing wheel is provided with sensor, the cavity volume gateway place of described shell is equipped with a chamber lid, is equipped with O-ring seals between described chamber lid and the cavity volume gateway of described shell.
2. the screw flowmeter of polyurethane processing main frame according to claim 1, it is characterized in that, wherein the diameter of a described screw rod is greater than the diameter of an other described screw rod.
3. the screw flowmeter of polyurethane processing main frame according to claim 2, it is characterized in that, the cavity volume inwall of described shell is provided with the fixed head for installing a less screw rod of diameter, and the screw shaft of the described screw rod that diameter is less is fixed on described fixed head.
4. the screw flowmeter of polyurethane processing main frame according to claim 1, it is characterized in that, the surface of described shell is provided with a connector.
5. the screw flowmeter of polyurethane processing main frame according to claim 1, is characterized in that, when fluid flows through the gap of two described screw rods vertically, promote two screw rods to rotate, form independently cavity volume, when two described screw rods rotate, convection cell constantly sucks and discharges.
6. the screw flowmeter of polyurethane processing main frame according to claim 1, it is characterized in that, described sensor carries out scanning survey to described sensing wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547916.9U CN204788531U (en) | 2015-07-27 | 2015-07-27 | Screw flowmeter of polyurethane processing host computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547916.9U CN204788531U (en) | 2015-07-27 | 2015-07-27 | Screw flowmeter of polyurethane processing host computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204788531U true CN204788531U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520547916.9U Active CN204788531U (en) | 2015-07-27 | 2015-07-27 | Screw flowmeter of polyurethane processing host computer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204788531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955795A (en) * | 2018-08-10 | 2018-12-07 | 金迈思液压设备（天津）有限公司 | A kind of twin-screw rotor molded line and the double-screw type flowmeter based on the molded line |
-
2015
- 2015-07-27 CN CN201520547916.9U patent/CN204788531U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955795A (en) * | 2018-08-10 | 2018-12-07 | 金迈思液压设备（天津）有限公司 | A kind of twin-screw rotor molded line and the double-screw type flowmeter based on the molded line |
| CN108955795B (en) * | 2018-08-10 | 2024-01-26 | 金迈思液压设备（天津）有限公司 | Double-screw rotor molded line and double-screw flowmeter based on molded line |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |