CN203194002U - Ground loop, electromagnetic flow meter and measuring instrument - Google Patents
Ground loop, electromagnetic flow meter and measuring instrument Download PDFInfo
- Publication number
- CN203194002U CN203194002U CN 201220651190 CN201220651190U CN203194002U CN 203194002 U CN203194002 U CN 203194002U CN 201220651190 CN201220651190 CN 201220651190 CN 201220651190 U CN201220651190 U CN 201220651190U CN 203194002 U CN203194002 U CN 203194002U
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- Prior art keywords
- ground loop
- flange
- ring
- location hole
- diameter
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Abstract
The utility model discloses a g round loop, an electromagnetic flow meter and a measuring instrument. The ground loop comprises a ring, and at least two support arms extending from the outer edge of the ring. The support arm is capable of processing a location hole. The location hole is used for inserting a set screw, so as to fix the ground loop, with respect to a connecting part of the measuring apparatus.
Description
Technical field
The utility model relates generally to the commercial measurement field, particularly, relates to a kind of method with ground loop and manufacturing and this ground loop of use of versatility.The utility model also relates to electromagnetic flowmeter and other measuring instruments that has flange that comprises this ground loop.
Background technology
In fluid circuit, the electric charge that produces for the friction that makes fluid and pipeline or effectively lost because of the entrained electric charge of other reasons can use ground loop with ducted fluid ground connection.
The utility model content
In order further to improve the versatility of ground loop, reduce the required precision to the size of ground loop, the application provides a kind of ground loop.It comprises ring and at least two support arms that extend out from the outer of ring.Can process location hole on support arm, this location hole is used for inserting dog screw, so that this ground loop is fixed with respect to the connecting portion of measurement mechanism.
According to the application's a aspect, support arm and ring form.
According to the application's a aspect, support arm evenly distributes on the circumferencial direction of ring.
According to the application's a aspect, the location hole reference diameter of ground loop equals the diameter sum of external diameter and the location hole of connecting portion.
According to another aspect of the application, ground loop is used for being fixed to the flange of measurement mechanism, and the external diameter of the ring bolt hole reference diameter that is limited in flange deducts in the scope of diameter of bolt.
The application also provides a kind of electromagnetic flowmeter, comprises at least one aforesaid ground loop.
According to the application's a aspect, ground loop is connected to the housing of electromagnetic flowmeter by lead-in wire.
According to the application's a aspect, the pipeline of electromagnetic flowmeter is non-conductive or have nonconducting lining.
According to the application's a aspect, ground loop and contacts with medium between the flange of the pipeline of the flange of electromagnetic flowmeter and the medium process that will measure.
The application also provides a kind of measuring instrument that has flange, comprises aforesaid ground loop.
By below in conjunction with accompanying drawing to DETAILED DESCRIPTION OF THE PREFERRED of the present utility model, these of the application and other advantages will be more obvious.
Description of drawings
In order further to set forth the application's above and other advantage and feature, be described in further detail below in conjunction with the embodiment of accompanying drawing to the application.Described accompanying drawing comprises in this manual and forms the part of this specification together with following detailed description.Wherein, in institute's drawings attached, used same or analogous Reference numeral to represent identical or similar parts.Should be appreciated that these accompanying drawings only describe the application's typical case, and should not regard the restriction to the application's scope as.In the accompanying drawings:
Fig. 1 shows the front view according to the structure of the ground loop of the application's a embodiment;
Fig. 2 shows according to the ground loop of the application's a embodiment and the front view that cooperates of connecting portion;
Fig. 3 shows the end view that cooperates of ground loop shown in Figure 2 and connecting portion;
Fig. 4 shows the ground loop of another kind of execution mode;
Fig. 5 shows the flow chart according to the method for the manufacturing ground loop of the application's a embodiment; And
Fig. 6 shows the flow chart according to the method for the use ground loop of the application's a embodiment.
Embodiment
Hereinafter will be by reference to the accompanying drawings the application's exemplary embodiment be described.For fear of the main points of having blured utility model because of unnecessary details, only illustrate in the accompanying drawings and the closely-related structure of utility model scheme and parts, concern other little details and omitted.For the purpose of element in the simple and clear presentation graphs, element might not be drawn in proportion among the figure.
At first with reference to the mechanical structure of Fig. 1 description according to the ground loop of the application's a embodiment.As shown in Figure 1, ground loop 100 comprises: ring 101; And at least two support arms 102 that extend out from the outer of ring 101, on support arm 102, can process location hole 103, in location hole 103, insert dog screw, so that ground loop 100 is fixed with respect to the connecting portion of measurement mechanism.
Because fixedly realizing by dog screw of ground loop 100, therefore, process location hole by the size according to the connecting portion of measurement mechanism in use in the appropriate location of support arm, the ground loop 100 of specific dimensions can be applicable to the connecting portion of multiple size.In addition, because the ring of ground loop is not used in the location, therefore the requirement on machining accuracy to its external diameter reduces.Under the situation of the versatility that has improved ground loop and requirement on machining accuracy reduction, the cost of ground loop reduces.
Wherein, the support arm 102 of ground loop 100 and ring 101 can form.In addition, support arm 102 and ring 101 also can form respectively, are attached at together to form ground loop 100 by means such as welding, rivet, bolts then.
As shown in Figure 1, support arm 102 evenly distributes on the circumferencial direction of ring 101.Particularly, support arm 102 is distributed on 0 degree, 90 degree, 180 degree and the 270 degree directions of ring 101.
Though should be noted that showing support arm 102 here divides equably on the circumferencial direction of ring 101, be not limited to this, support arm 102 also can be distributed on the circumferencial direction of ring 101 unevenly.In addition, the quantity of support arm 102 also is not limited to four shown in Figure 1, but can be for two or more than other values of two.
The determining of location hole of ground loop 100 is described below with reference to Fig. 2 and Fig. 3.As shown in Figure 2, ground loop 100 is fixed in connecting portion 200 such as on the flange.Wherein, the external diameter of connecting portion 200 be D0(correspondingly, radius is R0), the location hole calibration diameter of a circle of ground loop 100 is W1, the diameter of location hole is g.
As shown in Figure 3, satisfying under the situation of W1=D0+g, when inserting dog screw 301 in the location hole, can ground loop 100 is fixing with respect to connecting portion 200, the dog screw 301 that is ground loop is stuck in around the connecting portion 200, and wherein the diameter of dog screw 301 is f.
As can be seen, for same ground loop 100, when the size of connecting portion 200 changed, it was still applicable only need suitably to change W1.Particularly, can change the position of location hole, change under the less situation in size, the diameter that also can suitably change location hole makes ground loop 100 be fit to connecting portion 200.
Need to prove, Fig. 2 and Fig. 3 only show a kind of example of determining position of positioning hole and size, but the position of location hole and determining dimensions mode are not limited thereto, but can suitably determine according to the concrete structure of ground loop 100 and the concrete form of connecting portion 200.
In one embodiment, ground loop 100 is used for being fixed to the flange of measurement mechanism.As an example, as shown in Figure 2, connecting portion 200 is flange, at this moment, the bolt hole reference diameter that the D outer diameter 1 of the ring of ground loop 100 is limited in flange deducts in the scope of diameter of bolt, and the value of the inner diameter d 1 of ground loop 100 guarantees not hinder the use of pipeline to get final product with the while that contacts of pipeline inner fluid.
As can be seen, in this structure, do not need strict the restriction for the size of the ring of ground loop 100 and the size of support arm.When the D outer diameter 0 of flange changes owing to pressure rating or standard, by adjusting position or the size of the location hole on the ground loop 100, can make ground loop 100 be applicable to different flanges.
By comparison, ground loop in the execution mode as shown in Figure 4 is by being installed on the bolt location on the flange, after ground loop is positioned over flange surface, screw is inserted in the bolt hole on the flange, because the dimension D of ground loop external diameter is designed to flange bolt hole reference diameter W and deducts the diameter of bolt, therefore the sidewall of bolt contacts with the external diameter of ground loop, makes ground loop not move, thus the concentricity certain with the maintenance of flange endoporus.As can be seen, for this ground loop, the processing of external diameter needs higher precision to satisfy the requirement of location, and, because different pressures grade or be under the jurisdiction of various criterion, the size of the flange of identical nominal diameter may have certain difference such as the diameter of bolt or flange bolt hole reference diameter W etc., causes a kind of ground loop can only be applicable to flange a kind of or several types seldom.
And according to Fig. 1 to the ground loop 100 of execution mode shown in Figure 3 because the external diameter of its ring 101 no longer includes the requirement of location, so machining accuracy can reduce.In addition, location hole on the support arm 102 of ground loop 100 is convenient to post-production, has strengthened the adaptability to the flange excircle dimension, particularly, only need to adjust position or the size of location hole on the support arm, just can be so that a kind of ground loop be applicable to most flanges of same nominal diameter.
Another embodiment according to the application also provides a kind of electromagnetic flowmeter, comprises at least one above-mentioned ground loop 100.Wherein, this ground loop 100 is connected to the housing of electromagnetic flowmeter by lead-in wire.The earthing mode that should be noted that ground loop 100 is not limited thereto, and can also for example directly contact with the housing of electromagnetic flowmeter.
In one example, the pipeline of electromagnetic flowmeter is non-conductive or have nonconducting lining.
In one example, ground loop and contacts with medium between the flange of the pipeline of the flange of electromagnetic flowmeter and the medium process that will measure.Thereby, can be earth potential with the potential balance of measuring liquid by ground loop, guarantee certainty of measurement.
Though more than show electromagnetic flowmeter as the example of using according to the application's ground loop 100, be not limited to this.The application also provides the both sides that comprise above-mentioned ground loop 100 to have the measuring instrument of flange.By using the ground loop 100 according to the application's embodiment, can make things convenient for the management of these measuring instruments and reduce the cost of these measuring instruments.
An aspect according to the application also provides a kind of method of making ground loop, and as shown in Figure 5, this method comprises: at least two support arms (S11) that form ring and extend out from the outer of described ring; And processing location hole at described support arm, (S12) will be determined with respect to the size of the connecting portion of its fixing measurement mechanism according to described ground loop in the position of described location hole.
Wherein, can form support arm and ring, also can be individually formed support arm and ring is assembled together it then.In addition, support arm can be distributed on the circumferencial direction of ring equably or unevenly.Detail can be referring to the description of preamble at ground loop.
According to an example, when determining the position of location hole, based on following principle: the location hole reference diameter of ground loop equals the diameter sum of external diameter and the location hole of connecting portion.
According to an example, this connecting portion is the flange of protective device, and ground loop is used for being fixed to flange, and the external diameter of the ring bolt hole reference diameter that is limited in flange deducts in the scope of diameter of bolt.Because preamble is described in detail these examples with reference to Fig. 2 and Fig. 3, no longer repeats at this.Should be noted that these examples are illustrative and nonrestrictive.
Another aspect according to the application, a kind of method of using ground loop also is provided, ground loop comprises ring and at least two support arms that extend out from the outer of ring, as shown in Figure 6, this method comprises: process location hole at support arm, (S21) will be determined with respect to the size of the connecting portion of its fixing measurement mechanism according to this ground loop in the position of location hole; And in location hole, insert dog screw, so that this ground loop is fixed (S22) with respect to connecting portion.
In one example, can make the location hole reference diameter of this ground loop equal the diameter sum of external diameter and the location hole of connecting portion.
In one example, this ground loop is fixed on the flange of measurement mechanism, and the external diameter of the ring bolt hole reference diameter that is limited in flange deducts in the scope of diameter of bolt.In one example, ground loop is placed measurement mechanism flange and will and the flange of the device that couples together of measurement mechanism between.
Details about employed ground loop was described at preamble, no longer repeated at this.
At last, also need to prove, unless other situation clearly pointed out to be in context, otherwise in whole specifications and claim, should that is to say with the meaning of containing property, with " including, but not limited to " meaning, explain that word " comprises ", " comprising " etc.In addition, the word of word " here ", " top ", " following " and similar meaning should refer to the integral body of this paper, rather than refers to any specific part.Under the situation that context allows, use the word of odd number or plural number also may comprise plural number or odd number respectively.The word of enumerating " perhaps " about two or more projects covers following all explanations to this word: any one in the project in the tabulation; All items in the tabulation; And the combination in any of the project in the tabulation.
In addition, term " or " be intended to represent inclusive " or " rather than exclusiveness " or ".That is, clearly illustrate that unless otherwise or based on context, otherwise phrase " X use A or B " is intended to represent displacement any of comprising property of nature.That is, phrase " X uses A or B " is satisfied by any of following situation: X uses A; X uses B; Or X uses A and B.In addition, the article " " that uses in the application and appended claim generally is interpreted as expression " one or more ", unless otherwise from the clear singulative that relates to of context.
Though abovely described the application with reference to specific embodiment, should be appreciated that described embodiment only is illustrative rather than determinate.For a person skilled in the art, under the situation of the essence that does not deviate from the application and scope, can carry out various modifications and change.The application's scope is only limited by appended claim and equivalents thereof.
Claims (10)
1. ground loop is characterized in that described ground loop comprises:
Ring; And
At least two support arms that extend out from the outer of described ring can be processed location hole on described support arm, described location hole is used for inserting dog screw, so that described ground loop is fixed with respect to the connecting portion of measurement mechanism.
2. ground loop according to claim 1 is characterized in that described support arm and described ring form.
3. ground loop according to claim 1 and 2 is characterized in that described support arm evenly distributes on the circumferencial direction of described ring.
4. ground loop according to claim 1 and 2 is characterized in that the location hole reference diameter of described ground loop equals the diameter sum of external diameter and the described location hole of described connecting portion.
5. ground loop according to claim 1 and 2 is characterized in that described ground loop is used for being fixed to the flange of described measurement mechanism, and the external diameter of the described ring bolt hole reference diameter that is limited in described flange deducts in the scope of diameter of bolt.
6. an electromagnetic flowmeter is characterized in that comprising that at least one is according to any described ground loop in the claim 1 to 5.
7. electromagnetic flowmeter according to claim 6 is characterized in that described ground loop is connected to the housing of described electromagnetic flowmeter by lead-in wire.
8. according to claim 6 or 7 described electromagnetic flowmeters, it is characterized in that the pipeline of described electromagnetic flowmeter is non-conductive or have nonconducting lining.
9. according to claim 6 or 7 described electromagnetic flowmeters, it is characterized in that described ground loop between the flange of the pipeline of the flange of described electromagnetic flowmeter and the medium process that will measure, and contact with described medium.
10. a measuring instrument that has flange is characterized in that comprising any described ground loop according in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651190 CN203194002U (en) | 2012-11-30 | 2012-11-30 | Ground loop, electromagnetic flow meter and measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651190 CN203194002U (en) | 2012-11-30 | 2012-11-30 | Ground loop, electromagnetic flow meter and measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203194002U true CN203194002U (en) | 2013-09-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651190 Expired - Fee Related CN203194002U (en) | 2012-11-30 | 2012-11-30 | Ground loop, electromagnetic flow meter and measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203194002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857165A (en) * | 2012-11-30 | 2014-06-11 | 艾默生过程控制流量技术有限公司 | Ground ring, manufacturing and use method thereof, electromagnetic flowmeter and measuring meter |
-
2012
- 2012-11-30 CN CN 201220651190 patent/CN203194002U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857165A (en) * | 2012-11-30 | 2014-06-11 | 艾默生过程控制流量技术有限公司 | Ground ring, manufacturing and use method thereof, electromagnetic flowmeter and measuring meter |
| CN103857165B (en) * | 2012-11-30 | 2016-12-21 | 艾默生过程控制流量技术有限公司 | Ground loop and production and preparation method thereof, electromagnetic flowmeter and measuring instruments |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130911 Termination date: 20201130 |