CN2723973Y - Micro pressure spring methane pressure meter - Google Patents
Micro pressure spring methane pressure meter Download PDFInfo
- Publication number
- CN2723973Y CN2723973Y CN 200420008661 CN200420008661U CN2723973Y CN 2723973 Y CN2723973 Y CN 2723973Y CN 200420008661 CN200420008661 CN 200420008661 CN 200420008661 U CN200420008661 U CN 200420008661U CN 2723973 Y CN2723973 Y CN 2723973Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- spring
- biogas
- methane
- bellows chamber
- 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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- Measuring Fluid Pressure (AREA)
Abstract
A micro pressure spring methane pressure meter which can indicate methane pressure whether or not existing mainly is composed of a displacement transducer which can display deformation, namely multiplication system and a pressure-sensitive component. The pressure-sensitive element ordinary is made from a metal spring and a corrugation cavity. The methane with low pressure contains the etching gas, so the above pressure-sensitive element is not suitable to serve as the pressure-sensitive element of the methane pressure meter. The technique develops the new pressure-sensitive component with spring hook theorem, composing of a rubber corrugation cavity (1) shaped in a bottle gourd node and a spring in tension (2)which is sheathed in the outside of the corrugation cavity(1). The utility model is characterized in that (1) and (2) the same centers of the two open ends simultaneous which are arranged on the head of 'T' shaped screw thread (3)form the pressure-sensitive component. The pressure-sensitive component is connected with the watch case (8)provided with the multiplication system (7)through screw thread(6); the closed cap (4)of the spring is connected with the push bar (5)of the multiplication system.
Description
Technical field
The utility model relates to a kind of minute-pressure spring biogas pressure table of indicating biogas pressure whether to exist, the technical field that applies to carry biogas engineering.
Background technology
Apply to employed tensimeter in the biogas course of conveying at present, liquid column pressure table and capsule pressure gauge are arranged.Liquid column pressure table volume is big, uses inconvenient.The displacement transducer that capsule pressure gauge mainly is out of shape by sensing element bellows and demonstration etc. is formed.But contain the low characteristics of hydrogen sulfide corrosion gas and pressure in the biogas, capsule pressure gauge is metal, and how the corrosion resistance that just show this moment and the characteristics of low precision solve this two problems.
Summary of the invention
The purpose of this utility model provides a kind of compact conformation, can accurately indicate biogas pressure in the national standard scope.
The utility model is achieved in that it includes a "T"-shaped band screw head 3, rubber bellows chamber 1, sensing element spring 2 and shows that the displacement transducer of distortion is compositions such as amplification system 7.
The technical scheme that its technical matters that solves the utility model adopts is, it plays rubber bellows chamber 1 and prevents that biogas from leaking and transmit the pressure effect, arranged the serviceable life that prolongs sensing element spring 2, add extension spring 2 of cover in the outside of bellows chamber 1, utilize spring Hooke theorem to measure the pressure of biogas.
What have low no matter the beneficial effects of the utility model are the pressure of biogas, can both accurately measure, can also prolong manometric serviceable life simultaneously.
Description of drawings
Fig. 1 is the "T"-shaped band screw head 3 of the utility model
Fig. 2 is a rubber bellows chamber 1 of the present utility model
Fig. 3 is a sensing element metal spring 2 of the present utility model
Fig. 4 is the closing cover 4 of spring 2 of the present utility model
Fig. 5 is an assembly drawing of the present utility model
Wherein also have platform 9, thread 6 gas ports 10
Specific embodiments
Minute-pressure spring biogas pressure table, as shown in Figure 5, it comprises pressure-sensitive component body and displacement transducer 7 compositions that show distortion.The "T"-shaped screw head 3 that it is characterized in that the pressure-sensitive component body is connected by thread 6 with the displacement transducer 7 that shows distortion.Screw tight or loosen and to adjust manometric zero-bit by "T"-shaped screw head 3.The pressure-sensitive parts are by bellows chamber 1, and the sensing element metal spring 2 that adds cover band cap 4 in the outside of bellows chamber is formed.Be that bellows chamber and spring all are an end band cap one end openings, and openend all puts simultaneously on the platform 9 of "T"-shaped screw head, they are isoplanars with one heart and almost, radius difference just, and the spring radius is greater than rubber bellows chamber radius.Why be like this because the openend of bellows chamber and spring is fixed, the free end of pressurized rear enclosed produces displacement, in certain pressure limit, be linear between displacement and the pressure, but the shortcoming of bellows chamber is to have sizable sluggishness, and promptly when pressure change, distortion lags behind pressure and changes, in addition when pressure arrives to a certain degree greatly, nonlinear characteristic occurs,, add the sensing element spring 2 that cover has cap in bellows chamber in order to improve the precision of micromanometer.
When biogas enters bellows chamber by pore 10, make the free end of bellows chamber pressurized sealing produce displacement, drive adds cover and produces the displacement linear with pressure together with the spring of cap outside, and this displacement is that amplifier 7 indicates by displacement transducer.
By facts have proved, this tensimeter not only volume is little, and can indicate the size of biogas exactly in the national standard scope, and the bellows chamber of a rubber is arranged simultaneously, makes increase manometric serviceable life.
Claims (4)
1, a kind of minute-pressure spring biogas pressure table of indicating biogas pressure whether to exist, apply to carry in the biogas engineering, it includes a "T"-shaped band screw head (3), rubber ripple cavity (1), has the sensing element spring (2) and the displacement parallel operation composition that shows distortion of closing cover (4), it is characterized in that the "T"-shaped screw head (3) of pressure-sensitive parts and the watchcase (8) that amplification system (7) are housed couple together.
2, according to claim 1 described minute-pressure spring biogas pressure table, it is characterized in that "T"-shaped band screw head (3) is that a connection platform (9) is arranged, two openends with bellows chamber (1) and sensing element spring (2), put on platform (9), the spring radius is greater than the bellows chamber radius, spring housing is in the bellows chamber outside, and thread (6) is to play the pressure-sensitive parts and the watchcase that displacement transducer is amplification system (7) (8) is housed to couple together.
3, minute-pressure spring biogas pressure table according to claim 1 is characterized in that the rubber bellows chamber (1) of shape as the cucurbit joint, and it is made up of several different round platforms of diameter.
4, minute-pressure spring biogas pressure table according to claim 1 is characterized in that sensing element spring (2) is to determine its line footpath and spring area according to the scope of the pressure that will survey, and can only be subjected to pulling force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420008661 CN2723973Y (en) | 2004-03-23 | 2004-03-23 | Micro pressure spring methane pressure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420008661 CN2723973Y (en) | 2004-03-23 | 2004-03-23 | Micro pressure spring methane pressure meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723973Y true CN2723973Y (en) | 2005-09-07 |
Family
ID=35037597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420008661 Expired - Fee Related CN2723973Y (en) | 2004-03-23 | 2004-03-23 | Micro pressure spring methane pressure meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723973Y (en) |
-
2004
- 2004-03-23 CN CN 200420008661 patent/CN2723973Y/en not_active Expired - Fee Related
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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: 20050907 Termination date: 20100323 |