CN204027753U - A kind of anti-overflow non-maintaining U-tube pressure gauge - Google Patents
A kind of anti-overflow non-maintaining U-tube pressure gauge Download PDFInfo
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- CN204027753U CN204027753U CN201420358633.5U CN201420358633U CN204027753U CN 204027753 U CN204027753 U CN 204027753U CN 201420358633 U CN201420358633 U CN 201420358633U CN 204027753 U CN204027753 U CN 204027753U
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Abstract
The utility model discloses a kind of anti-overflow non-maintaining U-tube pressure gauge, comprise U-tube, two vertical tubes of described U-tube are respectively the first piezometric tube and the second piezometric tube, the upper port of described first piezometric tube is used for being connected with pipeline to be measured or the mouth of pipe, the upper end of described second piezometric tube is provided with anti-overflow tank, and the top of anti-overflow tank is provided with exhausr port.U-tube pressure gauge of the present utility model, measurement range is exceeded when institute's examining system pressure generation malleation fluctuates widely, or when in not clear situation, malleation outrange uses, anti-overflow tank provides a cushion space, gas is discharged from the exhausr port of anti-overflow tank top rapidly, and the measurement liquid in U-tube enters anti-overflow tank and can not spray under the effect of malleation; When the malleation of outrange reduces or disappears, measure liquid and be back in U-tube under the effect of gravity and external atmosphere pressure, avoid the loss of the measurement liquid caused owing to measuring liquid ejection, do not need in use procedure to carry out too much maintenance work.
Description
Technical field
The utility model belongs to pressure measurement Instrument technology field, is specifically related to a kind of anti-overflow non-maintaining U-tube pressure gauge.
Background technology
U-tube pressure gauge shows pressure intuitively because of it, is widely used in commercial production and laboratory, for carrying out site pressure observation.Common U-tube liquid manometer is generally glass material, pressure measurement pipeline directly and the joint of glass tube be connected, because glass tube tube wall is thin and material is crisp frangible, and not resistance to HF corrodes, very easily clashing and breaking in use procedure.Meanwhile, when institute, examining system pressure fluctuates widely suddenly, and when exceeding U-tube manometer measurement range, the measurement liquid in U-tube can spray or be inhaled into be treated in examining system, and U-tube manometer will lose measurement function; If liquid is inhaled into treat examining system, also can pollutes internal system, have a strong impact on the carrying out of commercial production or experiment, even occur safety problem.Easily occurring in the system of pressure surge, using traditional U-tube pressure gauge, needing to safeguard frequently, as dismounting, cleaning, liquid feeding etc.In addition, U-tube pressure gauge reading zero-bit is generally fixing, can not Rapid reading, and therefore range of application is subject to great restriction.
Summary of the invention
The purpose of this utility model is to provide a kind of anti-overflow non-maintaining U-tube pressure gauge, solves existing U-tube pressure gauge when institute's examining system pressure fluctuation, measures the problem that liquid easily sprays.
In order to realize above object, the technical scheme that the utility model adopts is: a kind of anti-overflow non-maintaining U-tube pressure gauge, comprise U-tube, two vertical tubes of described U-tube are respectively the first piezometric tube and the second piezometric tube, the upper port of described first piezometric tube is used for being connected with pipeline to be measured or the mouth of pipe, the upper end of described second piezometric tube is provided with anti-overflow tank, and the top of anti-overflow tank is provided with exhausr port.
Be provided with ball float in described first piezometric tube inner chamber, the upper port inside of the first piezometric tube is provided with elastic component, and this elastic component is used for block ball float and can coordinates with ball float to be formed sealing, and prevents U-shaped liquid in pipe from overflowing from the upper port of the first piezometric tube.
The locating part entered for block ball float in the second piezometric tube is provided with in described first piezometric tube and the second piezometric tube connecting place inner chamber.
The bottom of described first piezometric tube inner chamber is provided with the spacing storehouse of ball float for holding ball float of protruding U-tube.
The bottom in the spacing storehouse of described ball float is provided with sewage draining exit, and described sewage draining exit place is provided with blowoff valve.
Also comprise backboard and reading scale, described U-tube and reading scale are all fixed on backboard, and reading scale is between the first piezometric tube and the second piezometric tube.
Described backboard is provided with sliding rail, and described reading scale is arranged on sliding rail, can slide up and down along sliding rail.
The zero-bit of described reading scale, in centre, respectively has a set of graduation apparatus up and down.
Described ball float is magnetic ball float, the zero-bit place of described reading scale is provided with magnetic force piece, this magnetic force piece is used for by the magnetic-adsorption with magnetic ball float, and traction reading scale slides up and down along sliding rail, makes the zero-bit of reading scale and magnetic ball float be in same level position.
Anti-overflow non-maintaining U-tube pressure gauge of the present utility model, anti-overflow tank is provided with in the upper end of the second piezometric tube, the top of anti-overflow tank is provided with exhausr port, when the pressure generation malleation of institute's examining system fluctuates widely, temporarily exceed the manometric measurement range of U-tube, or when malleation outrange uses in not clear situation, anti-overflow tank provides a cushion space, gas is discharged from the exhausr port of anti-overflow tank top rapidly, and the measurement liquid in U-tube enters anti-overflow tank and can not spray under the effect of malleation; When the malleation of outrange reduces or disappears, measure liquid is back in U-tube under the effect of gravity and external atmosphere pressure, avoid the loss of the measurement liquid caused owing to measuring liquid ejection, do not need in use procedure to carry out the maintenance works such as too much liquid feeding.
Anti-overflow non-maintaining U-tube pressure gauge of the present utility model, is provided with ball float in the inner chamber of the first piezometric tube, and the upper port inside of the first piezometric tube is provided with for block ball float and can coordinates the elastic component being formed and seal with ball float, defines the structure preventing suck-back; When the pressure generation negative pressure of institute's examining system fluctuates widely, temporarily exceed the manometric measurement range of U-tube, or when negative pressure outrange uses in not clear situation, ball float rises to the upper port place of the first piezometric tube along with liquid level, by O RunddichtringO block, prevent ball float from deviating from the first piezometric tube; Under the effect of negative pressure, ball float and O RunddichtringO fit tightly to be formed and seal, and prevent U-shaped liquid in pipe from overflowing from the upper port of the first piezometric tube, thus avoid U-shaped liquid in pipe and be inhaled into the problem treated examining system, cause systemic contamination to be measured; When negative pressure disappear or when recovering normal, ball float falls after rise with liquid level, normal pressure measurement work can be recovered.
Anti-overflow non-maintaining U-tube pressure gauge of the present utility model, ball float is magnetic ball float, the magnetic force piece at reading rule zero place is by the magnetic-adsorption with magnetic ball float, can when ball float move up and down, traction reading scale slides up and down along sliding rail, makes the zero-bit of reading scale and ball float be in same level position all the time, solve existing U-tube pressure gauge reading trouble, calculative problem, realize the auto-alignment of reading rule zero, reading is more directly perceived quick, uses convenient.
Accompanying drawing explanation
Fig. 1 is the manometric structural representation of anti-overflow non-maintaining U-tube of embodiment 1;
Fig. 2 is the manometric structural representation of anti-overflow non-maintaining U-tube of embodiment 2;
Fig. 3 is the manometric structural representation of anti-overflow non-maintaining U-tube of embodiment 3.
Embodiment
Below in conjunction with embodiment, the utility model is further described.
Embodiment 1
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, as shown in Figure 1, comprise U-tube 1, backboard 2 and reading scale 3, described U-tube 1 and reading scale 3 are all fixed on backboard 2; Two vertical tubes of described U-tube 1 are respectively the first piezometric tube 4 and the second piezometric tube 5, the upper port of described first piezometric tube 1 is provided with the air intake opening 8 for being connected with pipeline to be measured or the mouth of pipe, the upper end of described second piezometric tube 5 is provided with anti-overflow tank 6, the bottom of anti-overflow tank 6 is connected with the second piezometric tube 5, and the top of anti-overflow tank 6 is provided with exhausr port 7; Described reading scale 3 is between the first piezometric tube 4 and the second piezometric tube 5, and the zero-bit 9 of reading scale 3 is positioned at the lower end of reading scale, is upwards read text scale table.Ball float 10 is provided with in the inner chamber of described first piezometric tube 4, the upper port place of the first piezometric tube 4, coaxial but diameter is less than the diameter of the first piezometric tube 4 to air intake opening 8 with the first piezometric tube 4, the downward annular table top that its inner connecting place is formed is provided with O RunddichtringO (elastic component) 11, the size of O RunddichtringO 11 and the table top of annular adapt, O RunddichtringO 11 is for block ball float 10 and can coordinate to be formed with ball float 10 and seal, and prevents liquid in U-tube 1 from overflowing from the upper port of the first piezometric tube 4; The locating part 12 entered for block ball float 10 in second piezometric tube 5 is provided with in described first piezometric tube 4 and the second piezometric tube 5 connecting place inner chamber; The bottom of described first piezometric tube 4 inner chamber is provided with the spacing storehouse 13 of ball float for holding ball float 10 of protruding U-tube 1; The bottom in the spacing storehouse 13 of described ball float is provided with sewage draining exit, and described sewage draining exit place is provided with blowoff valve 14.
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, when the pressure generation malleation of institute's examining system fluctuates widely, temporarily exceed the manometric measurement range of U-tube, or when in not clear situation, malleation outrange uses, anti-overflow tank provides a cushion space (volume of anti-overflow tank is 3-5 times of U-tube normal perfusion liquid volume), gas can be discharged from the exhausr port of anti-overflow tank top rapidly, and the measurement liquid in U-tube enters anti-overflow tank and can not spray under the effect of malleation; When the malleation of outrange reduces or disappears, measure liquid is back in U-tube under the effect of gravity and external atmosphere pressure, avoid the loss of measurement liquid caused owing to measuring liquid ejection, thus avoid carrying out liquid feeding etc. to the manometric maintenance work of U-tube.
Be provided with ball float in the inner chamber of the first piezometric tube, ball float swims in measures the liquid level place of liquid, can the position of clearer display liquid level; When the pressure generation negative pressure of institute's examining system fluctuates widely, temporarily exceed the manometric measurement range of U-tube, or when negative pressure outrange uses in not clear situation, ball float rises to the upper port place of the first piezometric tube along with liquid level, by O RunddichtringO block, prevent ball float from deviating from the first piezometric tube; Under the effect of negative pressure, ball float and O RunddichtringO fit tightly to be formed and seal, and prevent U-shaped liquid in pipe from overflowing from the upper port of the first piezometric tube, thus avoid U-shaped liquid in pipe and be inhaled into and treat examining system; When negative pressure disappear or when recovering normal, ball float falls after rise with liquid level, normal pressure measurement work can be recovered.
When the pressure generation malleation of institute's examining system fluctuates widely, ball float drops to bottom U-tube with liquid level, limited block, fall in the spacing storehouse of ball float bottom the first piezometric tube, thus prevent at positive pressure, ball float enters the second piezometric tube, anti-overflow tank with liquid, even deviates from U-tube from exhausr port, affects the normal work of U-tube.When system pressure to be measured recovers normal, measure liquid backflow to U-tube, ball float rises with liquid level, again normally works.When U-tube pressure gauge work a period of time needs cleaning, can blowoff valve be opened, release the liquid in U-tube and the spacing storehouse of ball float, U-tube pressure gauge is cleaned.
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, adopt PFA (perfluoroalkoxy resin) integral cast to form, the strength of materials is high, has good pressure-bearing property, acid-alkali-corrosive-resisting, in use not fragile, applied widely, easy to use.
Embodiment 2
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, as shown in Figure 2, difference from Example 1 is: described backboard 2 is provided with sliding rail, and described reading scale 3 is arranged on sliding rail, can slide up and down along sliding rail; The zero-bit 9 of described reading scale 3 is in the centre of reading scale 3, respectively has a set of read text scale up and down.
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, reading scale can slide up and down along sliding rail, during reading, can manually promote reading scale, the zero-bit of reading scale and ball float is made to be in same level position, then according to the direct reading of the liquid level in the second piezometric tube, thus eliminate middle computation process, use more convenient.
Embodiment 3
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, as shown in Figure 3, difference from Example 2 is: described ball float 10 is magnetic ball float, zero-bit 9 place of described reading scale 3 is provided with magnetic force piece 15, this magnetic force piece 15 is for by the magnetic-adsorption with ball float 10, traction reading scale 3 slides up and down along sliding rail, makes the zero-bit 9 of reading scale 3 be in same level position with ball float 10.
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, reading scale material is light plastic part, and the magnetic-adsorption between magnetic ball float and reading rule zero magnetic force piece can overcome self gravitation and the friction force between reading scale and slide rail of reading scale completely.Reading rule zero magnetic force piece and reading scale are an entirety in addition, and the ball float thus guarantee zero-bit is alignd all the time, real time reaction goes out the first piezometric tube inlet end liquid level position.When for malleation, in U-tube second piezometric tube, liquid level is higher than the first piezometric tube, directly reads pressure difference data by scale label, does not need to carry out differing from subtracting calculating.When for negative pressure, also can directly read.
The anti-overflow non-maintaining U-tube pressure gauge of the present embodiment, ball float is PFA coated magnetic ball float, the magnetic force piece at reading rule zero place is by the magnetic-adsorption with magnetic ball float, can when ball float moves up and down, traction reading scale slides up and down along sliding rail, makes the zero-bit of reading scale and ball float be in same level position all the time, realizes auto-alignment, reading is quick, easy to use.
Claims (9)
1. an anti-overflow non-maintaining U-tube pressure gauge, comprise U-tube, two vertical tubes of described U-tube are respectively the first piezometric tube and the second piezometric tube, it is characterized in that: the upper port of described first piezometric tube is used for being connected with pipeline to be measured or the mouth of pipe, the upper end of described second piezometric tube is provided with anti-overflow tank, and the top of anti-overflow tank is provided with exhausr port.
2. anti-overflow non-maintaining U-tube pressure gauge according to claim 1, it is characterized in that: in described first piezometric tube inner chamber, be provided with ball float, the upper port inside of the first piezometric tube is provided with elastic component, this elastic component is used for block ball float and can coordinates with ball float to be formed sealing, and prevents U-shaped liquid in pipe from overflowing from the upper port of the first piezometric tube.
3. anti-overflow non-maintaining U-tube pressure gauge according to claim 2, is characterized in that: be provided with the locating part entered for block ball float in the second piezometric tube in described first piezometric tube and the second piezometric tube connecting place inner chamber.
4. anti-overflow non-maintaining U-tube pressure gauge according to claim 3, is characterized in that: the bottom of described first piezometric tube inner chamber is provided with the spacing storehouse of ball float for holding ball float of protruding U-tube.
5. anti-overflow non-maintaining U-tube pressure gauge according to claim 4, it is characterized in that: the bottom in the spacing storehouse of described ball float is provided with sewage draining exit, described sewage draining exit place is provided with blowoff valve.
6. the anti-overflow non-maintaining U-tube pressure gauge according to any one of claim 2-5, it is characterized in that: also comprise backboard and reading scale, described U-tube and reading scale are all fixed on backboard, and reading scale is between the first piezometric tube and the second piezometric tube.
7. anti-overflow non-maintaining U-tube pressure gauge according to claim 6, it is characterized in that: described backboard is provided with sliding rail, described reading scale is arranged on sliding rail, can slide up and down along sliding rail.
8. anti-overflow non-maintaining U-tube pressure gauge according to claim 7, is characterized in that: the zero-bit of described reading scale, in centre, respectively has a set of graduation apparatus up and down.
9. the anti-overflow non-maintaining U-tube pressure gauge according to claim 7 or 8, it is characterized in that: described ball float is magnetic ball float, the zero-bit place of described reading scale is provided with magnetic force piece, this magnetic force piece is used for by the magnetic-adsorption with magnetic ball float, traction reading scale slides up and down along sliding rail, makes the zero-bit of reading scale and magnetic ball float be in same level position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358633.5U CN204027753U (en) | 2014-06-26 | 2014-06-26 | A kind of anti-overflow non-maintaining U-tube pressure gauge |
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| CN201420358633.5U CN204027753U (en) | 2014-06-26 | 2014-06-26 | A kind of anti-overflow non-maintaining U-tube pressure gauge |
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| CN204027753U true CN204027753U (en) | 2014-12-17 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597272A (en) * | 2014-12-22 | 2015-05-06 | 苏州欣航微电子有限公司 | Liquid column instrument panel |
| CN105181215A (en) * | 2015-10-08 | 2015-12-23 | 新乡天翼过滤技术检测有限公司 | Ejection-prevention device of U-tube manometer |
| CN106872095A (en) * | 2017-02-23 | 2017-06-20 | 苏州欣祥本机械科技有限公司 | A kind of pressure gage with increase measurement range function |
| CN107325965A (en) * | 2017-08-02 | 2017-11-07 | 深圳市中兰环保科技股份有限公司 | A kind of simple exhaust apparatus of regulating reservoir and its operating method |
| CN109115395A (en) * | 2018-07-11 | 2019-01-01 | 河南中烟工业有限责任公司 | A kind of packaged air conditioner cartridge filter two sides pressure differential detection structure |
| CN109916473A (en) * | 2018-09-15 | 2019-06-21 | 天津大学 | A kind of note formula liquid level measuring system and measurement method certainly |
| CN114636511A (en) * | 2022-02-14 | 2022-06-17 | 陈辉 | Vacuum pressure instrument |
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2014
- 2014-06-26 CN CN201420358633.5U patent/CN204027753U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597272A (en) * | 2014-12-22 | 2015-05-06 | 苏州欣航微电子有限公司 | Liquid column instrument panel |
| CN105181215A (en) * | 2015-10-08 | 2015-12-23 | 新乡天翼过滤技术检测有限公司 | Ejection-prevention device of U-tube manometer |
| CN106872095A (en) * | 2017-02-23 | 2017-06-20 | 苏州欣祥本机械科技有限公司 | A kind of pressure gage with increase measurement range function |
| CN106872095B (en) * | 2017-02-23 | 2019-09-20 | 嵊州市悦鑫五金配件经营部 | A kind of pressure gage with increase measurement range function |
| CN107325965A (en) * | 2017-08-02 | 2017-11-07 | 深圳市中兰环保科技股份有限公司 | A kind of simple exhaust apparatus of regulating reservoir and its operating method |
| CN109115395A (en) * | 2018-07-11 | 2019-01-01 | 河南中烟工业有限责任公司 | A kind of packaged air conditioner cartridge filter two sides pressure differential detection structure |
| CN109916473A (en) * | 2018-09-15 | 2019-06-21 | 天津大学 | A kind of note formula liquid level measuring system and measurement method certainly |
| CN114636511A (en) * | 2022-02-14 | 2022-06-17 | 陈辉 | Vacuum pressure instrument |
| CN114636511B (en) * | 2022-02-14 | 2024-03-01 | 四川川府仪表有限公司 | Vacuum pressure instrument |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 454191 Henan Province, Jiaozuo City Station area coke Rd Patentee after: Duofudo New Material Co.,Ltd. Address before: 454191, Feng County, Henan Province, Jiaozuo Feng Feng Chemical Industry Zone Patentee before: DO-FLUORIDE CHEMICALS Co.,Ltd. |
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| CP03 | Change of name, title or address |