CN201364218Y - Petroleum storage tank local pressure gauge - Google Patents
Petroleum storage tank local pressure gauge Download PDFInfo
- Publication number
- CN201364218Y CN201364218Y CN 200820222472 CN200820222472U CN201364218Y CN 201364218 Y CN201364218 Y CN 201364218Y CN 200820222472 CN200820222472 CN 200820222472 CN 200820222472 U CN200820222472 U CN 200820222472U CN 201364218 Y CN201364218 Y CN 201364218Y
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- Prior art keywords
- pressure
- diaphragm
- pressure gauge
- tube
- sensitive
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- Expired - Fee Related
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Abstract
The utility model relates to a petroleum storage tank local pressure gauge, which is characterized in that the pressure gauge consists of a pressure gauge display head (29), a pressure sensing cylinder (18), a membrane cylinder (19), a guide cylinder (20) and a female thread cylinder cover (21); the pressure sensing cylinder (18), the membrane cylinder (19) and the guide cylinder (20) are sequentially fixed through a fixing bolt (17) from bottom to top to form a cylindrical structure; the female thread cylinder cover (21) is connected at the top of the guide cylinder (20) through female threads; and the pressure gauge display head (29) extends into the port at the top of the female thread cylinder cover (21) and the drive rod guide pipe (14) in the middle of the guide cylinder (20)through a drive rod (13), and is connected with a drive rod connecting piece (10) integrally fixed with a pressure sensing membrane (5). The pressure gauge is suitable for steel dome roof tank pressure of millimeter water column and solves the problem that the change of the pressure indicated by the common vacuum pressure gauge is difficult to observe.
Description
Technical field
The utility model belongs to pressure gauge, and particularly a kind of petroleum storage tank is pressure gauge on the spot.
Background technology
High capacity steel dome-roof tank is huge at oil depot, refinery and the chemical plant usage quantity of oilfield stations field, various scales, and capacity does not wait to several all places tens.Since high capacity steel dome-roof tank exist mechanically fragility and the factor of secure context, tank deck all is provided with vacuum pressure valve, makes jar internal pressure maintain the pressure work down that the tank body physical strength can be born, general pressure with the temperature variation in operating mode and season at ± 50mmH
2O
1～± 100mmH
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1Fluctuation.Because steel dome-roof tank pressure is millimeter of water stage pressure, show that with the conventional vacuum tensimeter (representative value is-0.1 ~ 0.06MPa) to its pressure because of its range scale scope is too big, the variation of pressure is difficult to observe, so pressure gauge generally is not installed on the steel dome-roof tank, by the vacuum pressure valve equalized pressure.The jar internal pressure can not show that observation is very unfavorable to big jar safety, and situation was very serious when especially vacuum pressure valve was malfunctioning.
Summary of the invention
The purpose of this utility model provides a kind of highly sensitive petroleum storage tank pressure gauge on the spot, to adapt to steel dome-roof tank pressure is millimeter of water stage pressure, show that with the conventional vacuum tensimeter (representative value is-0.1 ~ 0.06MPa) to its pressure, the problem that the variation of pressure is difficult to observe because of its range scale scope is too big.
The purpose of this utility model is to realize like this, petroleum storage tank is pressure gauge on the spot, it is characterized in that: comprise pressure gauge display gauge head, pressure-sensitive tube, diaphragm tube, guide cylinder, internal thread cover, pressure-sensitive tube, diaphragm tube and guide cylinder are successively from bottom to top by the fixing tube structure that forms of set bolt; The internal thread cover is connected the guide cylinder top by internal thread; The pressure gauge display gauge head puts in internal thread cover top interface by drive link and is connected with the drive link web member that pressure-sensitive diaphragm is fixed as one with the middle drive link guide pipe of guide cylinder.
Described drive link web member sleeve pipe is connected on the drive link, fixes by fixing pin; Drive link web member lower plate is connected with pressure-sensitive diaphragm by the diaphragm gib screw.
Described pressure-sensitive diaphragm is left and right, upper and lower to connect four balancing springs by spring carrier arm respectively, and four balancing springs are fixed on the wall of diaphragm tube by four spring hangers again by set bolt; The pressure-sensitive diaphragm both sides connect ultra-thin flexible ripple film by superpower oil resistant glue, and ultra-thin flexible ripple film another side is connected with the diaphragm tube by superpower oil resistant glue.
Described pressure gauge display gauge head comprises that driving rack, pointer gear, pointer connect by part, pressure pointer, pressure scale dish, driving rack guide rail, connect and cut nail; Driving rack is a L type structure, and driving rack is connected with the drive link top by connecting pin, and driving rack is by two the driving rack guide rail location up and down in the pressure gauge display gauge head housing; Driving rack is connected with the pointer gear tooth, and the pointer gear center connects button by pointer and connects pressure pointer, pressure pointed pressure scale dish.
Described have a breathing mouth on the diaphragm tube, the pressure mouth is arranged on pressure-sensitive tube bottom or sidewall.
The utility model has the advantages that: connect four balancing springs by spring carrier arm respectively because pressure-sensitive diaphragm is left and right, upper and lower, four balancing springs are fixed on the wall of diaphragm tube by four spring hangers again by set bolt; The pressure-sensitive diaphragm both sides connect ultra-thin flexible ripple film by superpower oil resistant glue, and ultra-thin flexible ripple film another side is connected with the diaphragm tube by superpower oil resistant glue.The breathing mouth is arranged on the diaphragm tube, the pressure mouth is arranged on pressure-sensitive tube bottom or sidewall.During work, pressure of storage tank enters the pressure-sensitive chamber by the pressure mouth, and pressure acts on the pressure-sensitive diaphragm, and pressure of storage tank is ± 0.0mmH
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1During gauge pressure, diaphragm is in the equilibrium position under the effect of balancing spring up and down.When pressure of storage tank increased, pressure acted on the pressure-sensitive diaphragm bottom.This mechanism by pressure-sensitive diaphragm and four balancing spring formations can effectively solve the conventional vacuum tensimeter and show that (representative value is-0.1 ~ 0.06MPa) to its pressure, the problem that the variation of pressure is difficult to observe because of its range scale scope is too big.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Fig. 1 is the utility model example structure synoptic diagram.
Among the figure: 1, pressure mouth; 2, breathe mouth; 3, pressure-sensitive chamber; 4, respiratory chamber; 5, pressure-sensitive diaphragm; 6, ultra-thin flexible ripple film; 7, balancing spring; 8, spring hanger; 9, spring carrier arm; 10, drive link web member; 11, diaphragm gib screw; 12, fixing pin; 13, drive link; 14, drive link guide pipe; 15, guide pipe shaft collar; 16, superpower oil resistant glue; 17, set bolt; 18, pressure-sensitive tube; 19, diaphragm tube; 20, guide cylinder; 21, internal thread cover; 22, driving rack; 23, pointer gear; 24, pointer connects button; 25, pressure pointer; 26, pressure scale dish; 27, driving rack guide rail; 28, connect pin; 29, pressure gauge display gauge head; 30, fixed pedestal bolt hole.
Embodiment
As shown in Figure 1, as shown in Figure 1, comprise pressure gauge display gauge head 29, pressure-sensitive tube 18, diaphragm tube 19, guide cylinder 20, internal thread cover 21, from bottom to top by the set bolt 17 fixing tube structures that form, pressure-sensitive tube 18 bottoms are fixed by fixed pedestal bolt hole 30 and fixed pedestal successively for pressure-sensitive tube 18, diaphragm tube 19 and guide cylinder 20.Internal thread cover 21 is connected guide cylinder 20 tops by internal thread; The driving rack 22 of pressure gauge display gauge head 29 is connected with drive link 13 by connecting pin 28.
Pressure gauge display gauge head 29 comprises that driving rack 22, pointer gear 23, pointer connect button 24, pressure pointer 25, pressure scale dish 26, driving rack guide rail 27, connect pin 28; Driving rack 22 is a L type structure, and driving rack 22 is connected with drive link 13 tops by connecting pin 28, and driving rack 22 is by two driving rack guide rail 27 location up and down in pressure gauge display gauge head 29 housings; Driving rack 22 is connected with pointer gear 23 mutual teeth, and pointer gear 23 centers connect button 24 by pointer and connect pressure pointer 25, and pressure pointer 25 points to pressure scale dish 26.
The mouth 2 of breathing is arranged on diaphragm tube 19, on pressure-sensitive tube 18 bottoms or sidewall, pressure mouth 1 is arranged.
During work, pressure of storage tank enters pressure-sensitive chamber 3 by pressure mouth 1, and pressure acts on the pressure-sensitive diaphragm 5, and pressure of storage tank is ± 0.0mmH
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1During gauge pressure, diaphragm is in the equilibrium position under the effect of balancing spring 7 up and down.When pressure of storage tank increases, pressure acts on pressure-sensitive diaphragm 5 bottoms, there are ring-like ultra-thin flexible ripple film 6 and pressure-sensitive diaphragm 5 edges and diaphragm tube 19 inwalls bonding around the pressure-sensitive diaphragm 5 with superpower oil resistant glue 16, the pressure that acts on diaphragm can not revealed, this pressure promotes to move on pressure-sensitive diaphragm 5 the diaphragm balancing spring 7 of stretching pressure-sensitive diaphragm 5 bottoms, and the balancing spring 7 on pressure-sensitive diaphragm 5 tops shrinks that (balancing spring on diaphragm top is at ± 0.0mmH
2O
1Be stretched during gauge pressure), promote simultaneously to move on drive link 13 and the driving rack 22, driving rack 22 drives pointer gear 23 counter-clockwise direction by teeth and rotates, and pressure pointer 25 also counter-clockwise direction rotates the storage tank normal pressure that indicates correspondence on pressure scale dish 26.When pressure of storage tank was negative pressure, atmospheric pressure entered respiratory chamber 4 by breathing mouth 2, promoted diaphragm 5 and moved down, and this moment, pressure pointer 25 clockwise direction were rotated, and indicated corresponding storage tank negative pressure on pressure scale dish 26.
Diaphragm has certain effective pressure-sensitive area, and its effective pressure-sensitive area is the summation of diaphragm 5 areas and ring-like ultra-thin flexible ripple film 6 areas, and promptly the interior sectional area of pressure-sensitive tube is pressed 314.0cm
2(pressure-sensitive tube radius is by 10.0cm in calculating.If increase sensitivity, can increase the diameter of pressure-sensitive tube) ,+1.0mmH
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1The pressure of (i.e. 1 millimeter of water) can produce the 31.4 upwards thrusts that restrain to diaphragm 5, and diaphragm balancing spring 7 adopts the springs of tensile-elasticities less than 20 grams, and therefore the pressure of 1 millimeter of water just can be shown.
Diaphragm balancing spring 7 is at ± 0.0mmH
2O
1All be stretched during gauge pressure pressure, flexible in the pressure limit internal linear that whole index dial is shown, therefore can show pressure of storage tank linearly.
Pressure gauge display gauge head 29 diameters can be accomplished 0.5m, install with the tank deck flange, also can the pressure guiding pipe mode be installed on jar other pedestal.
Claims (5)
1, petroleum storage tank pressure gauge on the spot, it is characterized in that: comprise pressure gauge display gauge head (29), pressure-sensitive tube (18), diaphragm tube (19), guide cylinder (20), internal thread cover (21), pressure-sensitive tube (18), diaphragm tube (19) and guide cylinder (20) are successively from bottom to top by the fixing tube structure that forms of set bolt (17); Internal thread cover (21) is connected guide cylinder (20) top by internal thread; Pressure gauge display gauge head (29) puts in internal thread cover (21) top interface by drive link (13) and is connected with the drive link web member (10) that pressure-sensitive diaphragm (5) is fixed as one with the middle drive link guide pipe (14) of guide cylinder (20).
2, petroleum storage tank according to claim 1 pressure gauge on the spot, it is characterized in that: described drive link web member (10) sleeve pipe is connected on the drive link (13), and is fixing by fixing pin (12); Drive link web member (10) lower plate is connected with pressure-sensitive diaphragm (5) by diaphragm gib screw (11).
3, petroleum storage tank according to claim 1 pressure gauge on the spot, it is characterized in that: described pressure-sensitive diaphragm (5) is left and right, upper and lower to connect four balancing springs (7) by spring carrier arm (9) respectively, and four balancing springs (7) are fixed on the wall of diaphragm tube (19) by set bolt (17) by four spring hangers (8) again; Pressure-sensitive diaphragm (5) both sides connect ultra-thin flexible ripple film (6) by superpower oil resistant glue (16), and ultra-thin flexible ripple film (6) another side is connected with diaphragm tube (19) by superpower oil resistant glue (16).
4, petroleum storage tank according to claim 1 pressure gauge on the spot is characterized in that: described pressure gauge display gauge head (29) comprises that driving rack (22), pointer gear (23), pointer connect by part (24), pressure pointer (25), pressure scale dish (26), driving rack guide rail (27), connection and cuts nail (28); Driving rack (22) is a L type structure, and driving rack (22) is connected with drive link (13) top by connecting pin (28), and driving rack (22) is by the location of two the driving rack guide rails (27) up and down in pressure gauge display gauge head (29) housing; Driving rack (22) is connected with pointer gear (23) tooth, and pointer gear (23) center connects button (24) by pointer and connects pressure pointer (25), and pressure pointer (25) points to pressure scale dish (26).
5, petroleum storage tank according to claim 1 pressure gauge on the spot is characterized in that: described have a breathing mouth (2) on diaphragm tube (19), on pressure-sensitive tube (18) bottom or sidewall pressure mouth (1) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820222472 CN201364218Y (en) | 2008-11-14 | 2008-11-14 | Petroleum storage tank local pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820222472 CN201364218Y (en) | 2008-11-14 | 2008-11-14 | Petroleum storage tank local pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201364218Y true CN201364218Y (en) | 2009-12-16 |
Family
ID=41474886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820222472 Expired - Fee Related CN201364218Y (en) | 2008-11-14 | 2008-11-14 | Petroleum storage tank local pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201364218Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657903A (en) * | 2019-10-31 | 2020-01-07 | 安徽南自电气股份有限公司 | Pressure gauge with alarm function and manufacturing process thereof |
| CN113567015A (en) * | 2020-07-27 | 2021-10-29 | 山东光安智能科技有限公司 | Stress detection device based on hydraulic transmission type fiber bragg grating |
-
2008
- 2008-11-14 CN CN 200820222472 patent/CN201364218Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657903A (en) * | 2019-10-31 | 2020-01-07 | 安徽南自电气股份有限公司 | Pressure gauge with alarm function and manufacturing process thereof |
| CN113567015A (en) * | 2020-07-27 | 2021-10-29 | 山东光安智能科技有限公司 | Stress detection device based on hydraulic transmission type fiber bragg grating |
| CN113567015B (en) * | 2020-07-27 | 2023-01-17 | 山东光安智能科技有限公司 | Stress detection device based on hydraulic transmission type fiber bragg grating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |