CN100478653C - Gauging box of Roots gas flowmeter - Google Patents
Gauging box of Roots gas flowmeter Download PDFInfo
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- CN100478653C CN100478653C CNB2006100535990A CN200610053599A CN100478653C CN 100478653 C CN100478653 C CN 100478653C CN B2006100535990 A CNB2006100535990 A CN B2006100535990A CN 200610053599 A CN200610053599 A CN 200610053599A CN 100478653 C CN100478653 C CN 100478653C
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Abstract
A metering case of Roots gas flow-meter is prepared as connecting air outlet of filter in said case to air inlet of Roots meter by connection pipe, connecting air inlet of filter and air outlet of Roots meter separately to air inlet of filter and air outlet of Roots meter through valve, setting interfaces of air inlet and air outlet on valve at external side of case body.
Description
Technical field:
The present invention relates to a kind of Roots's gas meter and casing and constitute integrally-built flowmeter batch meter, belong to the flowmeter batch meter and make the field.
Background technology:
At present, unit gas, it no matter is intellectual, or mechanical type Roots gas meter Unit Installation, all require usefulness gas unit to build special installation room, not only the cycle is long, cost is high, and takes up room, be inconvenient to install, particularly on-the-spot installation is subjected to the restriction of place and checkout equipment, can't guarantee the reliability of its installation, easily produces phenomenons such as gas leakage; Secondly, can't implement to supervise effectively, indivedual illegal users utilize the situation of the imperfection (not having anti-theft feature) of feeder existence itself to steal gas, cause unnecessary massive losses for air feed unit.
Summary of the invention:
Purpose of design: avoid the weak point in the background technology, one provide a kind of by measuring apparatus intellectual or that mechanical type Roots gas meter constitutes, this measuring apparatus and casing are combined as a whole, make its a series of activities that before dispatching from the factory, can finish air feed metering, anti-gas-leak check, guarantee the safe reliability of its air feed; The 2nd, have antitheft function, prevent other people the unpacking gas of stealing; The 3rd, conveniently install and take up room minimum.
Design proposal: in order to realize above-mentioned purpose of design.1, the one, with the metering gas device and the integrant gas flow flowmeter measuring pocket of casing of filtrator and Roots's gauging table formation, be one of feature of the present invention.The maximum characteristics of this kind structure: the fixing support rack that the measurement of gas flow device that is made of filtrator and Roots's gauging table is fixed in the casing presss from both sides, make to form fixing, stable, immovable location between filtrator and Roots's gauging table, guarantee the reliability that connects between the two; The 2nd, because filtrator and Roots's gauging table have satisfied the requirement of stablizing, locating, can detect it easily in therefore producing, guarantee the reliability of its meter gas air feed, avoided the gas leak phenomenon that may occur to greatest extent.2, being positioned at and adopting by-pass valve to be communicated with between two valves of casing, is two of feature of the present invention.The purpose that by-pass valve is set between two valves is: when filtrator need be cleared up or Roots when showing to need maintenance or verification, as long as open by-pass valve, even when cleaning or maintenance or verification gas flow counter device, can can't not use gas owing to cleaning, maintenance, verification cause the user yet.3, connecting the connecting leg that filter outlet and Roots show import and be designed to U font structure, is three of feature of the present invention.The purpose of U font connecting leg design is: the one, reduce to greatest extent fluid by the time resistance; The 2nd, convenient connection and connecting leg pipe shaft non junction fast, the gas leakage of having avoided the connecting leg pipe shaft to exist.4, casing sidepiece or face have and observe the window and directly to Roots's gauging table display screen of checking meter, and are four of features of the present invention.It is long and cause the excessive defective of front install bin body thickness of table screen for fear of intellectual Roots table or mechanical type Roots table table body that the casing sidepiece is offered the window of checking meter, and makes intellectual Roots's table or mechanical type Roots show to install both convenient, is convenient to again check meter.5, the casing sidepiece has the design of Baiyesan-medicinal powder transom window, is five of feature of the present invention.Because the present invention is the gas flow flowmeter measuring pocket, theoretically, both made again reliable meter, the possibilities that might leak gas all, therefore from safety, reliable, the angle of taking precautions against, the present invention offers window shutter at the casing sidepiece, and to the gas leak phenomenon that contingency occurs, its gas can be shed by window shutter.The purpose of doing like this is: the one, can effectively avoid the excessive and unsafe conditions that causes of gas concentration in the case, and the 2nd, the gas that is used for discharging in the case is found its gas leak phenomenon, so that on-call maintenance.That is to say that window shutter system is just in case the strick precaution remedial measures under the situation.6, the casing back is provided with suspender, is six of feature of the present invention.The purpose of this suspender setting is: install very conveniently, as long as stamp two pieces or four pieces of nails on wall, then its suspension is got final product thereon.Therefore, install the saving of labor, save time, efficient is high especially.7, cabinet door be provided with safety lock and doorframe around stud with sealing strip, be seven of feature of the present invention.The setting of sealing strip, the one, can prevent entering of rainwater and harmful fluid effectively; The 2nd, can reduce the direct intrusion of dust, guarantee the comparatively safe of Roots type flowmeter measuring apparatus; The design of lock can prevent that the inoperative personnel from opening casing, has concurrently simultaneously to prevent other people unpacking function of stealing gas.8, being provided with the design of lead sealing between casing and door, is eight of feature of the present invention.The function of lead sealing design is as the function of lead sealing on the electric energy meter, and it can prevent that not only other people from illegally stealing gas, and prevents that other people from arbitrarily opening the gas metering case.
Technical scheme: gauging box of Roots gas flowmeter, be positioned at the filtrator (8) of casing (9) and Roots's gas flow counter device employing supporting and mounting bracket folder (10) location that Roots's table (2) is constituted, its filtrator (8) gas outlet and Roots's table (2) air intake opening are by U font connecting leg or adopt straight tube and elbow formation U font connecting leg (1) connection, the air intake opening of filtrator (8) is communicated with by first valve (7) and with the interface of the air intake opening of first valve (7), Roots table (2) gas outlet is communicated with by second valve (3) and with the interface of the gas outlet of second valve (3), adopt the interface of by-pass valve (5) connection and first valve (7) air intake opening to be positioned at casing (9) outside between the connecting leg of first valve (7) and second valve (3), the interface of second valve (3) gas outlet is positioned at casing (9) outside, casing (9) sidepiece or face have the window of checking meter (11) and directly to Roots's gauging table display screen, casing (9) sidepiece has Baiyesan-medicinal powder transom window (12).
The present invention compares with background technology, the one, structural design novelty, uniqueness, simple, reliable, practical, started the combustible gas metering arrangement metering, install integrated; The 2nd, compact conformation, easy for installation, quick, and do not take up room, the saving of labor, save time, installation cost is low; The 3rd, can effectively prevent other people and illegally steal gas; The 4th, realized industrialized mass production and installation, and metering performance is stable, reliable, can not produce bad phenomenon such as gas leakage; The 5th, be not only applicable to the incorporate production of flow metering of various flow quantity intelligent formula Roots tables, and be applicable to the incorporate production of flow metering of various flow mechanical type Roots tables; The 6th, because Roots's (waist wheel) gas meter machining precision height, easily blocked and can't work by foreign material, the present invention adopts filtrator not only can prevent effectively that welding slag, anvil cinder in the piping erection from entering Biao Nei and the card that causes shows and resembles.
Description of drawings:
Fig. 1 is the structural representation of first kind of embodiment of intellectual gauging box of Roots gas flowmeter.
Fig. 2 is the structural representation of second kind of embodiment of intellectual gauging box of Roots gas flowmeter.
Fig. 3 is the side-looking structural representation of Fig. 1 and Fig. 2.
Fig. 4 is the structural representation of first kind of casing.
Fig. 5 is the side-looking structural representation of first kind of casing.
Fig. 6 is the structural representation of intellectual the third embodiment of gauging box of Roots gas flowmeter.
Fig. 7 is the side-looking structural representation of Fig. 6.
Fig. 8 is the structural representation of first kind of embodiment of mechanical type gauging box of Roots gas flowmeter.
Fig. 9 is the structural representation of second kind of embodiment of mechanical type gauging box of Roots gas flowmeter.
Figure 10 is the structural representation of the third embodiment of mechanical type gauging box of Roots gas flowmeter.
Figure 11 is the structural representation of the 4th kind of embodiment of mechanical type gauging box of Roots gas flowmeter.
Figure 12 is the structural representation of second kind of casing.
Figure 13 is the side-looking structural representation of second kind of casing.
Embodiment:
Embodiment 1: with reference to accompanying drawing 1,3～5.Gauging box of Roots gas flowmeter, (connecting leg 1 is U font one-piece construction by connecting leg 1 to be positioned at filtrator 8 gas outlets of casing 9 and Roots's table 2 air intake opening, or adopt straight tube and elbow to constitute U font structure) be communicated with, the air intake opening of filtrator 8 is communicated with by first valve 7 and with the interface of the air intake opening of first valve 7, Roots's table 2 gas outlet is communicated with by second valve 3 and with the interface of the gas outlet of second valve 3, adopt the interface of by-pass valve 5 connections and first valve, 7 air intake openings to be positioned at casing 9 outsides between the connecting leg of first valve 7 and second valve 3, the interface of second valve, 3 gas outlets is positioned at casing 9 outsides, (interface is flange-interface or screw thread interface) adopts by-pass valve 5 to be communicated with between first valve 7 in the casing 9 and the connecting leg of second valve 3.Casing 9 gets final product by the prior art processing and fabricating with reference to attached Figure 4 and 5.Filtrator 8 and Roots's table 9 are prior art, are not described herein at this.Be positioned at the filtrator 8 of casing 9 and Roots's gas flow counter device that Roots's table 2 is constituted and adopt supporting and mounting bracket folder 1) locate this supporting and mounting bracket folder 1 and adopt prior art and processing technology to make, be not described herein at this.Casing 9 sidepieces or face have the window 11 and directly to Roots's gauging table display screen, casing 9 sidepieces have Baiyesan-medicinal powder transom window 12 of checking meter, and casing 9 is provided with suspender 13.9 of casings be provided with safety lock 14 and doorframe around stud with sealing strip, and casing 9 with between be provided with lead sealing 15.Described Roots's gas flow is counted intellectual Roots's gas meter or mechanical type Roots gas meter.
Embodiment 2: with reference to accompanying drawing 2 and 3.On the basis of embodiment 1, do not establish by-pass valve 5 between first valve 7 in the casing 9 and the connecting leg of second valve 3.
Embodiment 3: with reference to accompanying drawing 6 and 7.On the basis of embodiment 1, do not establish the by-pass valve 5 and first valve 7 and second valve 3 between the connecting leg of first valve 7 and second valve 3 and be positioned at outside the casing 9.
Embodiment 4: with reference to accompanying drawing 8.On the basis of embodiment 1, described Roots's gas flow is counted mechanical type Roots gas meter.
Embodiment 5: with reference to accompanying drawing 10.On the basis of embodiment 1 and 2, do not establish by-pass valve 5 between first valve 7 in the casing 9 and the connecting leg of second valve 3.
Embodiment 6: with reference to accompanying drawing 11.On the basis of embodiment 1 and 2, do not establish the by-pass valve 5 and first valve 7 and second valve 3 between the connecting leg of first valve 7 and second valve 3 and be positioned at outside the casing 9.
Embodiment 7: with reference to accompanying drawing 12 and 13.On the basis of embodiment 1, casing 9 fronts have the window 11 and directly to Roots's gauging table display screen of checking meter.
Need to prove: Roots's gas meter is meant Roots's (waist wheel) positive displacement gas meter.
What need understand is: though the foregoing description is to the present invention's detailed explanation of contrasting; but these explanations are just to simple declaration of the present invention; rather than limitation of the present invention, any innovation and creation that do not exceed in the connotation of the present invention all fall within the scope of protection of the present invention.
Claims (5)
1, a kind of gauging box of Roots gas flowmeter, it is characterized in that: be positioned at the filtrator (8) of casing (9) and Roots's gas flow counter device employing supporting and mounting bracket folder (10) location that Roots's table (2) is constituted, its filtrator (8) gas outlet and Roots's table (2) air intake opening are by U font connecting leg or adopt straight tube and elbow formation U font connecting leg (1) connection, the air intake opening of filtrator (8) is communicated with by first valve (7) and with the interface of the air intake opening of first valve (7), Roots table (2) gas outlet is communicated with by second valve (3) and with the interface of the gas outlet of second valve (3), adopt the interface of by-pass valve (5) connection and first valve (7) air intake opening to be positioned at casing (9) outside between the connecting leg of first valve (7) and second valve (3), the interface of second valve (3) gas outlet is positioned at casing (9) outside, casing (9) sidepiece or face have the window of checking meter (11) and directly to Roots's gauging table display screen, casing (9) sidepiece has Baiyesan-medicinal powder transom window (12).
2, gauging box of Roots gas flowmeter according to claim 1 is characterized in that: interface is flange-interface or screw thread interface.
3, gauging box of Roots gas flowmeter according to claim 1 is characterized in that: casing (9) is provided with suspender (13).
4, gauging box of Roots gas flowmeter according to claim 1 is characterized in that: casing (9) door be provided with safety lock (14) and doorframe around stud with sealing strip, and casing (9) with between be provided with lead sealing (15).
5, gauging box of Roots gas flowmeter according to claim 1 is characterized in that: described Roots's gas flow is counted intellectual Roots's gas meter or mechanical type Roots gas meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100535990A CN100478653C (en) | 2006-09-26 | 2006-09-26 | Gauging box of Roots gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100535990A CN100478653C (en) | 2006-09-26 | 2006-09-26 | Gauging box of Roots gas flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101074887A CN101074887A (en) | 2007-11-21 |
| CN100478653C true CN100478653C (en) | 2009-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100535990A Active CN100478653C (en) | 2006-09-26 | 2006-09-26 | Gauging box of Roots gas flowmeter |
Country Status (1)
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| CN (1) | CN100478653C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387533B (en) * | 2007-12-25 | 2011-06-15 | 上海埃科燃气测控设备有限公司 | IC card gas Roots flowmeter measuring pocket and measuring method |
| CN107228695B (en) * | 2017-07-05 | 2024-02-27 | 上海埃科燃气测控设备有限公司 | Integrated gas roots flowmeter box |
-
2006
- 2006-09-26 CN CNB2006100535990A patent/CN100478653C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 用油过滤器与罗茨表配合系统解决工业户计量问题. 李晓峰.城市煤气，第2期. 1995 |
| 用油过滤器与罗茨表配合系统解决工业户计量问题. 李晓峰.城市煤气，第2期. 1995 * |
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| Publication number | Publication date |
|---|---|
| CN101074887A (en) | 2007-11-21 |
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