CN2409494Y - Integrated intelligent orificeplate mass flowmeter - Google Patents
Integrated intelligent orificeplate mass flowmeter Download PDFInfo
- Publication number
- CN2409494Y CN2409494Y CN 00210770 CN00210770U CN2409494Y CN 2409494 Y CN2409494 Y CN 2409494Y CN 00210770 CN00210770 CN 00210770 CN 00210770 U CN00210770 U CN 00210770U CN 2409494 Y CN2409494 Y CN 2409494Y
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- valve
- pressure
- orifice plate
- valve body
- differential pressure
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Abstract
The utility model discloses an integrated intelligent orifice plate mass flowmeter composed of an orifice plate, a pressure sampling pipe, a triple valve set and a differential pressure transmitter. The utility model is characterized in that a pressure throttling device is composed of pore plates. The positive pressure sampling valve, the negative pressure sampling valve and the adjusting valve of the triple valve set share the same valve body. The lower end of the valve body is fixed with the pore plate. Each fluid input hole of the pressure sampling valve is connected with the pressure sampling hole of the pore plate through the pressure sampling pipe. The upper end of the valve body is fixedly connected with the intelligent differential pressure transmitter, forming the integrated intelligent orifice plate mass flowmeter. The utility model has the advantages of directly measuring the volume and the mass flow, being capable of forming stereotyping products, etc.
Description
The utility model relates to a kind of flowmeter, exactly is a kind of integral intelligent orifice plate mass flowmeter.
At present, orifice-plate flowmeter is used widely in engineering fields such as oil, chemical industry, metallurgy, electric power.This flowmeter is mainly by pressure restriction device, pressure pipe, three valve groups, differential pressure transmitter and be used for holding in the palm support of putting and fixing three valve groups and differential pressure transmitter etc. to form.Wherein, the pressure restriction device by a pair of can and the joining flange of engineering pipeline and insert and put the orifice plate that is fixed between the flange and form, all be shaped on a radial direction through hole on each flange, this through hole constitutes its positive and negative pressure port respectively; Three valve groups are made up of positive and negative pressure measuring valve, a variable valve and the fluid passage that is made of exterior line that is arranged between each valve; Differential pressure transmitter is that an energy becomes the electric signal of simulation also electric signal can be flowed to the chromacoder of terminal Displaying Meter the fluid pressure differential conversion of signals.Use when installing, the pressure restriction device is welded between the pipeline butt end by its flange, be communicated with by the pressure pipe respectively between positive and negative pressure port on it and the fluid input hole of positive and negative pressure measuring valve, be communicated with by two exterior lines respectively between two pressure chambers of the fluid delivery outlet of each pressure measuring valve and differential pressure transmitter, variable valve is connected between this exterior line into and out of the hole by its fluid.The subject matter that this flowmeter exists in manufacturing and use is: 1, for a long time, owing to be subjected to the traditional mode of production mode, the restriction of particularly traditional make, flowmeter fails to form a kind of standardization of the integral structure that can directly produce always in factory, the approved product of seriation, but a kind of dispersion processing, field-installed indefinite form product, the building block that is flowmeter is made respectively by being dispersed in all parts of the country some professional production factory, then, purchase respectively according to engine request by the user, to the working-yard it is assembled into flowmeter again.This flowmeter is not only manufactured the cost height, and production efficiency is low, but also does not usually reduce it and manufacture quality because of the constructor does not possess professional skill; 2, the pressure restriction device of existing flowmeter, three valve groups all exist in varying degrees loosely organized, the interface position is waited construction problem more, cause flowmeter not only to be difficult to form the approved product of above-mentioned integral structure, but also exist that volume is big, technological deficiency such as easy to leak, use are reliable inadequately; 3, the differential pressure transmitter of existing flowmeter use does not all have temperature and pressure compensation, thereby temperature and the pressure that can not eliminate the fluid that is measured change measuring result's influence, this allows the metered volume flow, and unallowed really for the metering mass rate.Therefore, existing flowmeter can only directly be measured fluid volume, and can not directly measure fluid mass.Under present condition, people will understand the mass rate timing, can only be basic parameter with the volume flow value, relend to help the complex mathematical computing and could realize, thereby the gage work of the mass rate ten minutes that becomes is bothered, and result of calculation is also not accurate enough.
The purpose of this utility model is for people provide a kind of compact conformation, and not easy to leak, and energy is the integral intelligent orifice plate mass flowmeter of meter fluid mass rate directly.
The purpose of this utility model is achieved in that it comprises orifice plate, pressure pipe, three valve groups, the differential pressure transmitter of pressure restriction device, is characterized in directly making positive and negative pressure port on the described orifice plate, makes it to constitute the pressure restriction device; Constitute the shared valve body of positive and negative pressure measuring valve, variable valve of three valve groups, the hole group that is arranged in this valve body constitutes fluid passage between its valve, and makes the fluid delivery outlet of each pressure measuring valve, fluid input hole lay respectively at the valve body upper/lower terminal; Be fixedly connected between this valve body lower end and the orifice plate, and each described fluid input hole is communicated with respectively with the positive and negative pressure port of orifice plate by described pressure pipe, this valve body upper end is fixedly connected with differential pressure transmitter, and described each fluid delivery outlet is communicated with each corresponding pressure chamber sealing of differential pressure transmitter respectively, thereby make described flowmeter form the product of integral structure.
Above-mentioned differential pressure transmitter is the intelligent differential pressure transmitter with temperature and the complete dynamic auto compensation characteristic of pressure.
Compared with the prior art have the following advantages after the utility model is realized: 1, its for the first time for people provide a kind of can in factory, directly make and be convenient to realize standardize, the flowmeter product of the integral structure of seriation, regularization, thereby not only help reducing the cost of manufacturing of flowmeter, quality is manufactured in assurance, and provides convenience for the user uses this product; 2, owing to the combination valve of three valve groups of the present utility model by monolithic construction constitutes, omitted exterior line of the prior art; The pressure restriction device only is made of orifice plate again, omit the flange that is provided with in the prior art and match with orifice plate and cancelled the support of putting three valve groups and differential pressure transmitter etc. that is used for holding in the palm of the prior art, thereby make the structure of entire product compact more, and reduce this interface position of each parts, and then not only volume is little, in light weight to make the utility model, and easy to leak not, use more reliable; 3, because the utility model has used the intelligent differential pressure transmitter with temperature and the complete dynamic auto compensation characteristic of pressure as chromacoder, so it is the direct volumetric flow rate of meter fluid not only, and the direct mass rate of meter fluid, thereby to bringing great convenience property of user.
Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.
Fig. 1 is a front view of the present utility model.
Fig. 2 is the side direction view of Fig. 1.
Fig. 3 is the structural representation of three valve groups.
Fig. 4 is the A-A cut-open view of Fig. 3.
As seen from the figure, the utility model mainly is made up of pressure restriction device, pressure pipe 3, three valve groups 2, differential pressure transmitter 1.Wherein, the make of critical piece is as follows:
As seen from Figure 1, Figure 2, the pressure restriction device only is made of an orifice plate 5, the orifice plate that uses in this orifice plate and the prior art is compared its difference and is that the thickness of slab size slightly increases, in addition, also make two radial direction through hole 7,6 on its diagram top wooden partition, this each through hole constitutes the positive and negative pressure port of pressure restriction device respectively.
The make of three valve groups as shown in Figure 3, Figure 4, as seen from the figure, the aufbauprinciple of three valve groups is identical with prior art, it also is equivalent to be made up of 8,11, one variable valve 15 of two pressure measuring valves and the fluid passage that is arranged between each valve; But its make really unlike the prior art, and difference is that the fluid passage between its pressure measuring valve, the shared valve body 14 of variable valve, each valve is made of the hole group that is arranged in the valve body, thereby make three valve groups form the combination valve of a monolithic construction.In the present embodiment, the fluid input hole 12,13 of each pressure measuring valve is positioned at valve body lower end, and its fluid delivery outlet 9,10 then is positioned at the valve body upper end.
In order to make the utility model can directly be used as mass flowmeter, that is to say the mass rate that can directly read detected fluid by the display units such as instrument of its adapted, the utility model also will have the intelligent differential pressure transmitter of temperature and the complete dynamic auto compensate function of pressure first as its chromacoder.
The installation method of manufacturing of the present utility model is:
Between orifice plate upper end and three valve group lower ends a pole socket 4 is set, this pole socket upper/lower terminal connects with three valve groups, orifice plate welding respectively, is integral thereby make to be fixedly connected between orifice plate and three valve bodies; The positive and negative pressure port 7,6 on orifice plate top each with the lower end seal welding of a pressure pipe 3, both vestibules are communicated with, the upper end of each pressure pipe is respectively by pipe adapter and described fluid input hole 12,13 sealed attachment that are arranged on three valve group valve body lower end; Differential pressure transmitter 1 is fixedly mounted on the valve body upper surface of three valve groups by bolt connection part, and two pressure chambers of differential pressure transmitter lower end are communicated with described fluid delivery outlet 9,10 sealings that are arranged on three valve group valve bodies upper end respectively.
Should be pointed out that working as the utility model selects for use the differential pressure transmitter that does not have temperature and pressure compensation characteristic that generally uses in this area as its signal conversion part, thereby used as the volumetric flow rate timing, its relative prior art has advance equally.
Using method of the present utility model is:
At first its orifice plate is inserted and put be fixed on pipeline between the connecting flange, and make its positive pressure port be positioned at fluid to import a side, then, connect with the signal output part of differential pressure transmitter of the present utility model by the signal input part of prior art instrument equal-volume and mass rate indicating device; At last, close variable valve 15, cut off the path between two pressure measuring valves 8,11, and open two pressure measuring valves 8,11, make it fluid input, delivery outlet connection, at this moment, the utility model promptly carries out volume, mass metrology work.When the user need confirm the zero point of differential pressure transmitter, can close positive and negative pressure measuring valve earlier, open variable valve again, make between the positive and negative pressure measuring valve to be communicated with, can achieve the goal.
Claims (2)
1, integral intelligent orifice plate mass flowmeter, it comprises orifice plate, pressure pipe, three valve groups, the differential pressure transmitter of pressure restriction device, it is characterized in that directly making positive and negative pressure port on the described orifice plate, makes it to constitute the pressure restriction device; Constitute the shared valve body of positive and negative pressure measuring valve, variable valve of three valve groups, the hole group that is arranged in this valve body constitutes fluid passage between its valve, and makes the fluid delivery outlet of each pressure measuring valve, fluid input hole lay respectively at the valve body upper/lower terminal; Be fixedly connected between this valve body lower end and the orifice plate, and each described fluid input hole is communicated with respectively with the positive and negative pressure port of orifice plate by the pressure pipe, this valve body upper end is fixedly connected with differential pressure transmitter, and described each fluid delivery outlet is communicated with two pressure chamber sealings of differential pressure transmitter respectively, thereby make described flowmeter form the product of integral structure.
2, integral intelligent orifice plate mass flowmeter according to claim 1 is characterized in that described differential pressure transmitter is the intelligent differential pressure transmitter with temperature and the complete dynamic auto compensation characteristic of pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210770 CN2409494Y (en) | 2000-02-01 | 2000-02-01 | Integrated intelligent orificeplate mass flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210770 CN2409494Y (en) | 2000-02-01 | 2000-02-01 | Integrated intelligent orificeplate mass flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2409494Y true CN2409494Y (en) | 2000-12-06 |
Family
ID=33577597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210770 Expired - Fee Related CN2409494Y (en) | 2000-02-01 | 2000-02-01 | Integrated intelligent orificeplate mass flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2409494Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507375A (en) * | 2011-11-09 | 2012-06-20 | 四川大学 | Device for measuring density and flow rate of supercritical cracking product of hydrocarbon fuel, and measurement method thereof |
| CN103206989A (en) * | 2012-01-13 | 2013-07-17 | 上海安钧电子科技有限公司 | Under-pressure installation insertion type V cone flow rate meter |
| CN103292855A (en) * | 2013-07-09 | 2013-09-11 | 唐山科汇达仪器仪表有限公司 | On-line pluggable target flowmeter |
| CN108007508A (en) * | 2018-01-09 | 2018-05-08 | 上海科洋科技股份有限公司 | A kind of differential flow measuring device |
-
2000
- 2000-02-01 CN CN 00210770 patent/CN2409494Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507375A (en) * | 2011-11-09 | 2012-06-20 | 四川大学 | Device for measuring density and flow rate of supercritical cracking product of hydrocarbon fuel, and measurement method thereof |
| CN102507375B (en) * | 2011-11-09 | 2013-09-25 | 四川大学 | Device for measuring density and flow rate of supercritical cracking product of hydrocarbon fuel, and measurement method thereof |
| CN103206989A (en) * | 2012-01-13 | 2013-07-17 | 上海安钧电子科技有限公司 | Under-pressure installation insertion type V cone flow rate meter |
| CN103206989B (en) * | 2012-01-13 | 2015-12-16 | 上海安钧电子科技有限公司 | A kind of Under-pressure installation insertion type V cone flow rate meter |
| CN103292855A (en) * | 2013-07-09 | 2013-09-11 | 唐山科汇达仪器仪表有限公司 | On-line pluggable target flowmeter |
| CN108007508A (en) * | 2018-01-09 | 2018-05-08 | 上海科洋科技股份有限公司 | A kind of differential flow measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |