CN200965473Y - A gas metering pressure regulator - Google Patents
A gas metering pressure regulator Download PDFInfo
- Publication number
- CN200965473Y CN200965473Y CN 200620042887 CN200620042887U CN200965473Y CN 200965473 Y CN200965473 Y CN 200965473Y CN 200620042887 CN200620042887 CN 200620042887 CN 200620042887 U CN200620042887 U CN 200620042887U CN 200965473 Y CN200965473 Y CN 200965473Y
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- CN
- China
- Prior art keywords
- pressure
- pressure regulator
- flowmeter
- malleation
- regulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a gas metering pressure regulator, which includes a direct acting pressure regulator and a flowmeter, the direct acting pressure regulator includes a pressure regulating device, a cutting device and a valve body, the flowmeter is an inner conical typed flowmeter. The utility model has the structure of that the inner conical type flowmeter is directly arranged at the exit of the pressure regulator, the inner conical type flowmeter pertains to a differential pressure typed flowmeter, because of the special structure of the inner conical type flowmeter, the fluid velocity distribution is not sensitive for the inner conical type flowmeter, and the utility model omits a middle pipeline which is arranged between the meter and the pressure regulator of the traditional gas metering pressure regulators. Thus, the utility model can not only make the metering pressure regulator have simple structure, but also reduce the manufacturing cost of the metering pressure regulator and save the installation space.
Description
Technical field
The utility model belongs to a kind of metering pressure regulator, a kind of gas metering pressure regulator of more specifically saying so.
Background technology
The major equipment of pressure regulation is exactly a pressure regulator, and it is mainly used in the pressure regulation of building, building, in regional pressure regulation and the industrial direct combustion equipment.So-called pressure regulator is exactly to regulate gas outlet pressure automatically, makes its step-down equipment that is stabilized in a certain pressure limit, so claim decompressor again.Flowmeter and pressure regulator combination become a kind of metering pressure regulator that integrates metering, pressure regulation.At present, the metering pressure regulator that is used for the gas transmission and distribution of general domestic gas transmission ﹠ distribution and direct-fired equipment comprises direct acting type pressure regulator and straight pipe type flowmeter, pressure regulator mainly is made up of pressure adjustment assembly, shearing device and valve body, regulator: pressure regulator is actual to be exactly a decompressor, the gases at high pressure valve body of flowing through of input, by the adjusting of homophony spring, the required force value of output user.(at present, the kind of flowmeter is a lot, normal and the matching used flow of pressure regulator is in respect of turbo flow meter, precession vortex flowmeter and rotz flowmeter, but because turbo flow meter and precession vortex flowmeter belong to velocity flowmeter, very responsive to velocity distribution (turbulent flow), need longer straight length ability operate as normal.Though rotz flowmeter does not need straight length, negotiability is little, usually can not satisfy the requirement of flow, so these flowmeters and the supporting use of pressure regulator are also unsatisfactory.) subject matter that exists of this metering pressure regulator is that the velocity distribution complexity needs one section very long intermediate duct between meter and the pressure regulator because the combustion gas of coming out from pressure regulator is a turbulent flow.So not only make the complex structure of metering pressure regulator, volume increases, and has also increased the manufacturing cost of metering pressure regulator.
The utility model content
At the problems referred to above, the problem that the utility model quasi-solution is determined provides a kind of simple in structure, and volume is little, also the metering pressure regulator of low cost of manufacture.
At the problems referred to above, the utility model has adopted following technical scheme: a kind of gas metering pressure regulator, comprise direct acting type pressure regulator and the flowmeter that is connected with the direct acting type pressure regulator, described direct acting type pressure regulator comprises pressure adjustment assembly, shearing device and valve body, it is characterized in that described flowmeter is an inner cone flow meter.Described inner cone flow meter comprises the cone-shaped body in straight tube and the straight tube, also is provided with malleation pressure pipe and negative pressure pressure pipe on the described straight pipe wall, and described malleation pressure pipe is positioned at before the negative pressure pressure pipe, and described negative pressure pressure pipe cone-shaped body is connected.
As preferably, above-mentioned inner cone flow meter is also organized into differential pressure transmitter and three valve groups, described three valve groups are connected with malleation pressure pipe, negative pressure pressure pipeline, differential pressure transmitter is fixedlyed connected with the upper surface of the valve body of three valve groups, the malleation input port of differential pressure transmitter is connected with the malleation delivery outlet of three valve groups, and the negative pressure input port of differential pressure transmitter is connected with the negative pressure delivery outlet of three valve groups.
Also be provided with temperature sensor and pressure sensor in the straight tube of described inner cone flow meter.
Adopt said structure, an inner cone flow meter is directly installed in exit at pressure regulator, this inner cone flow meter belongs to a kind of differential pressure flowmeter, because its special structure, the convection cell velocity distribution is insensitive, has omitted the intermediate duct of traditional gas metering pressure regulator between meter and pressure regulator.So not only make the simple in structure of metering pressure regulator, also reduced the manufacturing cost of metering pressure regulator, saved installing space, make pressure regulator and flowmeter install concentratedly in a surge tank, make pressure regulator have the function that flow is estimated.And in V-arrangement, leave temperature and pressure on the cone flow meter and detect mouth, mix and leave temperature and pressure on corresponding temperature, pressure transducer and the flowmeter and detect mouth, mix corresponding temperature, pressure transducer and flow computer, just can realize that temperature, pressure, differential pressure, flow show on the spot and the function of teletransmission.Like this, whole pressure regulation metering cabinet has the function of filtration, pressure regulation, metering, signals collecting and teletransmission concurrently, becomes novel intelligent voltage regulator.
Description of drawings
Fig. 1 is the structural representation of gas metering pressure regulator of the present utility model.
Among the figure: 1-direct acting type pressure regulator, 2-flowmeter, 3-pressure adjustment assembly, 4-shearing device, 5-valve body, the 6-straight tube, 7-cone-shaped body, 8-malleation pressure pipe, 9-negative pressure pressure pipe, the 10-differential pressure transmitter, 11-three valve groups, 12-temperature sensor, 13-pressure transducer.
Embodiment
As shown in Figure 1, gas metering pressure regulator of the present utility model comprises direct acting type pressure regulator 1 and flowmeter 2, described direct acting type pressure regulator comprises pressure adjustment assembly 3, shearing device 4 and valve body 5, regulator 3 is actual to be exactly a decompressor, the gases at high pressure valve body of flowing through of input, by the adjusting of homophony spring, the required force value of output user.For playing the effect of safeguard protection, the shearing device that this utility model increases has obtained more reinforcement from structural behaviour.When downstream pressure rose to setup pressure value owing to a variety of causes, shearing device 4 promptly was triggered, and cuts off pipeline immediately, stops air feed.Because film breaks, the valve port of pressure regulator or pilot valve are not closed completely, spring fault, valve rod such as block at reason, can make pressure regulator lose automatic adjusting and step-down ability.Like this, high, middle compression ignite gas will directly flow to outlet by import without pressure regulation, cause behind the pressure regulator in, low-pressure fuel gas device superpressure.Will wash out gas meter, flow meter as the low-voltage device superpressure, pipeline, equipment gas leakage take place or cause burner rough burning, the safety that directly jeopardizes the user.
Along with improving constantly of people's awareness of safety, nearly all pressure regulator all has been equipped with shearing device, and the user can select whether to be equipped with shut safety device as required when buying pressure regulator.Its principle of work simply is described below: when flow was a certain value, regulating spring made valve be in a certain aperture, and top hole pressure is setting P2.When flow increases, or intake pressure P1 is when reducing, and top hole pressure P2 also reduces, and then the gaseous-pressure film under and film upper spring power out of trim move down film, and valve opened greatly and the flow increase makes it to recover former top hole pressure P2 value by lever.When flow minimizing or intake pressure P2 increase, it is opposite with above-mentioned situation to regulate action.When flow was reduced to null value, top hole pressure P2 value reached maximal value, when film upwards is displaced to maximum displacement under the effect of P2max, made valve closed tightly, and pressure regulator just stops air feed.
The innovative point of the utility model maximum is that described flowmeter has adopted inner cone flow meter 2.Described inner cone flow meter 2 comprises the cone-shaped body 7 in straight tube 6 and the straight tube 6, also is provided with malleation pressure pipe 8 and negative pressure pressure pipe 9 on described straight tube 6 walls, and described malleation pressure pipe 8 is positioned at before the negative pressure pressure pipe 9, and described negative pressure pressure pipe 9 is connected with cone-shaped body 7.
As improvement, above-mentioned inner cone flow meter 2 can also be organized into differential pressure transmitter 10 and three valve groups 11, described three valve groups 11 are connected with malleation pressure pipe 8, negative pressure pressure pipe 9 pipelines, differential pressure transmitter 10 is fixedlyed connected with the upper surface of the valve body of three valve groups 11, the malleation input port of differential pressure transmitter 10 is connected with the malleation delivery outlet of three valve groups 11, and the negative pressure input port of differential pressure transmitter 10 is connected with the negative pressure delivery outlet of three valve groups 11.
As further improvement, also be provided with temperature sensor 12 and pressure sensor 13 in the straight tube 6 of described inner cone flow meter.
Claims (4)
1, a kind of gas metering pressure regulator, comprise direct acting type pressure regulator (1) and the flowmeter (2) that is connected with direct acting type pressure regulator (1), described direct acting type pressure regulator comprises pressure adjustment assembly (3), shearing device (4) and valve body (5), it is characterized in that described flowmeter is an inner cone flow meter; Described inner cone flow meter (2) comprises the cone-shaped body (7) in straight tube (6) and the straight tube (6), also be provided with malleation pressure pipe (8) and negative pressure pressure pipe (9) on described straight tube (6) wall, described malleation pressure pipe (8) is positioned at negative pressure pressure pipe (9) before, and described negative pressure pressure pipe (9) is connected with cone-shaped body (7).
2, gas metering pressure regulator according to claim 1, it is characterized in that described inner cone flow meter (2) is also organized has gone into differential pressure transmitter (10) and three valve groups (11), described three valve groups (11) are connected with malleation pressure pipe (8), negative pressure pressure pipe (9) pipeline, differential pressure transmitter (10) is fixedlyed connected with the upper surface of the valve body of three valve groups (11), the malleation input port of differential pressure transmitter (10) is connected with the malleation delivery outlet of three valve groups (11), and the negative pressure input port of differential pressure transmitter (10) is connected with the negative pressure delivery outlet of three valve groups (11).
3, gas metering pressure regulator according to claim 2 is characterized in that also being provided with temperature sensor (12) in the straight tube (6) of described inner cone flow meter.
4, gas metering pressure regulator according to claim 2 is characterized in that also being provided with in the described straight tube (6) pressure transducer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042887 CN200965473Y (en) | 2006-06-16 | 2006-06-16 | A gas metering pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042887 CN200965473Y (en) | 2006-06-16 | 2006-06-16 | A gas metering pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200965473Y true CN200965473Y (en) | 2007-10-24 |
Family
ID=38869488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620042887 Expired - Fee Related CN200965473Y (en) | 2006-06-16 | 2006-06-16 | A gas metering pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200965473Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206997A (en) * | 2013-02-07 | 2013-07-17 | 浙江苍南仪表厂 | Gas Roots flow measuring device and flow correction method for same |
| CN105757452A (en) * | 2016-05-16 | 2016-07-13 | 崔贤长 | Intelligent two-stage pressure reducer |
| CN106707797A (en) * | 2015-07-28 | 2017-05-24 | 大丰市丰泰机电有限公司 | Intelligent safe energy-saving monitoring system for gas pressure regulating station |
| CN109696213A (en) * | 2018-11-27 | 2019-04-30 | 西人马(西安)测控科技有限公司 | A kind of domestic gas meter |
-
2006
- 2006-06-16 CN CN 200620042887 patent/CN200965473Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206997A (en) * | 2013-02-07 | 2013-07-17 | 浙江苍南仪表厂 | Gas Roots flow measuring device and flow correction method for same |
| CN106707797A (en) * | 2015-07-28 | 2017-05-24 | 大丰市丰泰机电有限公司 | Intelligent safe energy-saving monitoring system for gas pressure regulating station |
| CN105757452A (en) * | 2016-05-16 | 2016-07-13 | 崔贤长 | Intelligent two-stage pressure reducer |
| CN109696213A (en) * | 2018-11-27 | 2019-04-30 | 西人马(西安)测控科技有限公司 | A kind of domestic gas meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 |