CN2522849Y - Space-control type over-pressure protector - Google Patents
Space-control type over-pressure protector Download PDFInfo
- Publication number
- CN2522849Y CN2522849Y CN 01229889 CN01229889U CN2522849Y CN 2522849 Y CN2522849 Y CN 2522849Y CN 01229889 CN01229889 CN 01229889 CN 01229889 U CN01229889 U CN 01229889U CN 2522849 Y CN2522849 Y CN 2522849Y
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- CN
- China
- Prior art keywords
- control type
- space
- pressure
- diaphragm
- upper connector
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- 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
A space-control type over-pressure protector includes a working medium, an upper junctor, a lower junctor, a bolt, a screw, a steel ball, an adjusting screw and a function membrane (or plunger piston). A controlled space is realized through the moving variable quantity of the membrane (or plunger piston). A concave curved surface technology is applied on the membrane. The controlled space can be reliably locked through the turning of the concave membrane to protect a pressure instrument.
Description
The utility model is the protector of protection minute-pressure instrument (or high tension instrument), and concrete is a kind of function surface spatial control type protector.
Minute-pressure (or high pressure) instrument is the big valuable and dangerous instrument of a kind of consumption, and minute-pressure of using in chemical process and high-pressure medium are gas, the liquid that is harmful to mostly, so more and more to the requirement of overvoltage protection.
In the prior art, used overvoltage protector (seeing letters patent ZL99205775.8) is main with pressure ratio form, controls a valve and comes work.Minimum at 2KPA, the highest scope at 50MPA.
The purpose of this utility model provides a kind of protector of spatial control technology.Minimum at 0.02KPA, the highest scope at 100MPA has the highest level in the world.
The purpose of this utility model is achieved in that
A kind of overvoltage protector of spatial control type comprises actuating medium, upper connector, lower connector, bolt, screw, steel ball, set screw and function diaphragm (or plunger), it is characterized in that:
1) upper connector is the logical hole of pressing of concave Iy curved and center that there are different functions at the center.Diaphragm is clamped with six bolts by upper connector and lower connector.Lower connector is the logical hole of pressing of concave Iy curved and center that there are different functions at the center.
2) described upper connector one side has an air hole and steel ball and screw.
3) material of upper connector, lower connector and diaphragm (or plunger) can be any and the combination thereof in steel, aluminium, copper, pottery and plastics, rubber, the latex.
The utility model has following actively useful effect
(1) the function concave surface diaphragm on upper connector function concave surface of the present utility model and the lower connector has locked a certain amount of compressible space, and full admission (liquid) amount that the instrument impression is provided under the migration of diaphragm (or plunger) and limit reaches protective effect.
(2) the utility model diaphragm (or plunger) has been isolated measured medium and manometric contacting directly, and helps the anti-corrosion protection to manometer.
(3) diaphragm of the present utility model (or plunger) has locked the displacement of diaphragm (or plunger) after being adjacent to fully with upper connector, thereby has guaranteed to damage the phenomenon that measured medium takes place to continue to leak because of self reason at manometer.
(4) of the present utility model simple in structure, so following manufacturing and maintenance characteristics are arranged:
Suitable material extensively is easy to get: can use any and combination thereof in steel, aluminium, copper, pottery and plastics, rubber, the latex.
Easy to maintenance: except that function type diaphragm (or O shape circle) needs in instrument is examined surely inspection or the replacing, other parts generally can not damage, and long-term use ability is arranged.
(5) set screw of the present utility model can be controlled different diaphragm displacements.
Fig. 1 is the structural representation of the overvoltage protector in the prior art.
Fig. 2 is the structural representation of minute-pressure spatial control type overvoltage protector of the present utility model
Fig. 3 is the structural representation of high-pressure space control type overvoltage protector of the present utility model
Fig. 4 is the use zero pressure view of minute-pressure spatial control type overvoltage protector of the present utility model.
Fig. 5 is the use excess pressure guard mode synoptic diagram of minute-pressure spatial control type overvoltage protector of the present utility model.
Fig. 6 is the use zero pressure view of high-pressure space control type overvoltage protector of the present utility model.
Fig. 7 is the use excess pressure guard mode synoptic diagram of high-pressure space control type overvoltage protector of the present utility model.
Now 2 describe in conjunction with the accompanying drawings:
Accompanying drawing 2 numberings: 1--lower connector; The 101--bolt; 2--function diaphragm; The 3--upper connector; The 301--set screw; The 302--steel ball; The 303--screw
Please refer to Fig. 2, spatial control type overvoltage protector of the present utility model comprises:
Lower connector 1 has function matrix body for the center; There is air hole at its center; The bottom has screw thread to be connected with other equipment.Lower connector has the perforation of six equally distributed bolts 101.
There is aperture at set screw 301 centers.
Design feature of the present utility model and principle of work:
Spatial control type overvoltage protector service object is a pressure instrumentation.The work of pressure instrumentation is to be finished by its inner sensing element.There is certain space sensing element inside, and the same media density in this space increases, and sensing element promptly reacts and boosts; Same media density in this space reduces, and sensing element promptly reacts step-down.Based on above work principle, spatial control type overvoltage protector is exactly that process is calculated object of protection when maximum pressure-sensitive is worked, and required maximal density increment is controlled.
1. Fig. 4 is the usual state of living in of minute-pressure spatial control type overvoltage protector.Function diaphragm 2 is sagging naturally before logical the pressure, and function diaphragm 2 has the space that surrounds a certain amount of (through special accurate Calculation) with upper connector 3, and this space is controlled.Fig. 5 is after the logical pressure in lower connector 1 bottom, diaphragm has played the effect of isolating, and by ventilate or liquid medium holds up, original gas in Be Controlled space or liquid (actuating medium) are compressed, and by the part, until all squeezing out controlled space, enter the space of sensing element, increase the Media density of sensing element.When function diaphragm 2 is subjected to logical pressure effect, make its function diaphragm 2 upsets, and when sternly being affixed on upper connector 3 concave Iy curved, just can not move again, upper connector 3 has limited the motion of (having propped up) function diaphragm 2, makes the density in the interior space of sensing element certain.Though the central hole at set screw 301 places also has sub-fraction function diaphragm 2 in distortion, can be according to calculation Design, make its influence be controlled at permission less than 0.5% scope.
2. Fig. 6 is the usual state of living in of high voltage control type overvoltage protector.Plunger 2 tops are zero pressures before logical the pressure, and the bottom also is a zero pressure, and plunger 2 is in equilibrium state, but the O type circle 201 of plunger 2 has a certain amount of (the special accurate Calculation of process) space with top and upper connector 3, and this space is controlled.Fig. 7 is after the logical pressure in lower connector 1 bottom, plunger 2 has played the effect of isolating, and by ventilate or the medium jack-up of hydraulic pressure, controlled space original liquid (actuating medium) is compressed, and by the part, until all squeezing out controlled space, enter the space of sensing element, increase the Media density of sensing element.When plunger 2 is subjected to logical pressure effect, make on its plunger 2 and move, and when sternly being affixed on upper connector 3 concave stations, just can not move again, upper connector 3 has limited the motion of (having propped up) plunger, makes the density in the interior space of sensing element certain.Though the O type circle 201 on the plunger 2 has certain kinetic friction force with upper connector 3, generally below 0.4MPA, so use more than 10MPA, the influence of internal resistance is just very little.
When the logical pressure in lower connector 1 bottom was cancelled or reduced, function diaphragm (plunger) 2 upper pressure height promoted function diaphragm (plunger) 2 and are in new equilibrium point (pressure reduction is about zero up and down) up to returning to Fig. 4 (or Fig. 6) state.
Claims (5)
1. the overvoltage protector of a spatial control type comprises actuating medium, upper connector, lower connector, bolt, screw, steel ball, set screw and function diaphragm or plunger, it is characterized in that:
Upper connector is matrix curvilinear plane or the matrix platform that there are different functions at the center, and diaphragm is clamped with six bolts by upper connector and lower connector, and lower connector is the logical hole of pressing of matrix curvilinear plane and center that there are different functions at the center.
2. spatial control type overvoltage protector as claimed in claim 1 is characterized in that: in described upper connector one side one air hole and steel ball and screw are arranged.
3. spatial control type overvoltage protector as claimed in claim 1 is characterized in that: set screw is arranged at described upper connector top.
4. spatial control type overvoltage protector as claimed in claim 1 is characterized in that: described function diaphragm is the matrix curvilinear plane, and along around stretch and six uniform bolts hole arranged.
5. spatial control type overvoltage protector as claimed in claim 1 is characterized in that: the material of described upper connector, lower connector and diaphragm or plunger can be any and the combination thereof in steel, aluminium, copper, pottery and plastics, rubber, the latex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01229889 CN2522849Y (en) | 2001-07-06 | 2001-07-06 | Space-control type over-pressure protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01229889 CN2522849Y (en) | 2001-07-06 | 2001-07-06 | Space-control type over-pressure protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522849Y true CN2522849Y (en) | 2002-11-27 |
Family
ID=33644633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01229889 Expired - Fee Related CN2522849Y (en) | 2001-07-06 | 2001-07-06 | Space-control type over-pressure protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522849Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175384A (en) * | 2011-01-20 | 2011-09-07 | 青岛石大石仪科技有限责任公司 | Isolated pressure-limiting protective pressure acquisition device |
| US9835509B2 (en) | 2011-05-31 | 2017-12-05 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
| US10046102B2 (en) | 2005-11-09 | 2018-08-14 | Nxstage Medical, Inc. | Diaphragm pressure pod for medical fluids |
-
2001
- 2001-07-06 CN CN 01229889 patent/CN2522849Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10046102B2 (en) | 2005-11-09 | 2018-08-14 | Nxstage Medical, Inc. | Diaphragm pressure pod for medical fluids |
| US10864312B2 (en) | 2005-11-09 | 2020-12-15 | B. Braun Medical Inc. | Diaphragm pressure pod for medical fluids |
| CN102175384A (en) * | 2011-01-20 | 2011-09-07 | 青岛石大石仪科技有限责任公司 | Isolated pressure-limiting protective pressure acquisition device |
| CN102175384B (en) * | 2011-01-20 | 2012-10-03 | 青岛石大石仪科技有限责任公司 | Isolated pressure-limiting protective pressure acquisition device |
| US9835509B2 (en) | 2011-05-31 | 2017-12-05 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
| US10345175B2 (en) | 2011-05-31 | 2019-07-09 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
| US11529448B2 (en) | 2011-05-31 | 2022-12-20 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
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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 |