CN202177424U - Differential pressure damping device and damping type differential pressure liquid level measurement device - Google Patents
Differential pressure damping device and damping type differential pressure liquid level measurement device Download PDFInfo
- Publication number
- CN202177424U CN202177424U CN2011203346588U CN201120334658U CN202177424U CN 202177424 U CN202177424 U CN 202177424U CN 2011203346588 U CN2011203346588 U CN 2011203346588U CN 201120334658 U CN201120334658 U CN 201120334658U CN 202177424 U CN202177424 U CN 202177424U
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- differential pressure
- damping
- liquid level
- air chamber
- liquid phase
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Abstract
The utility model relates to the technical field of a liquid level measurement device and is a differential pressure damping device and a damping type differential pressure liquid level measurement device. The differential pressure damping device comprises a capillary tube and a damping air chamber; the capillary tube is fixedly connected and further communicated with the damping air chamber; the internal diameter of the damping air chamber is more than or equal to 20 times that of the capillary tube. The devices are rational and compact in structure and are used conveniently; the pressure load of a low temperature tank truck can be effectively absorbed during the filling and transportation process by arranging the differential pressure damping device on a liquid phase pipe; the differential pressure is kept stable between the air phase and liquid phase pressure taking ends, so the liquid level is ensured to be indicated correctly and stably, and the pointer of a liquid level meter is avoided from swinging sharply; therefore, the service life of the liquid level meter is prolonged greatly.
Description
Technical field
the utility model relates to the liquid level emasuring device technical field, is a kind of differential pressure damping unit and damp type differential pressure liquid level emasuring device.
Background technology
The differential pressure levelmeter of
low-temperature liquid gas body tank transport vehicle is the height that utilizes gas phase top and the pressure reduction between the liquid phase bottom in the tank body to measure the tank interior liquid level; Conventional structure only is provided with pin hole at the gas phase pressure end and the liquid phase pressure end of differential pressure levelmeter 7 usually, because the pipe diameter between liquid phase valve 4 and the differential pressure levelmeter 7 is very little, has only the DN4 specification usually; Tank car fill or walking process in; Liquid is because inertia can fluctuate, because the fluctuation and the percussive action of liquid, these dynamic loads can produce additional equivalent pressure at the pressure end of liquid phase bottom; Thereby cause the fluctuation that produces moment pressure reduction between the liquid level gauge gas, liquid pressure pipeline terminal; Cause the liquid level indication unstable, again because the total range of liquid level gauge of low temperature tank car is very little, therefore when compression shock is excessive; The pointer that liquid level gauge will occur is significantly swung, even causes liquid level gauge to damage.
Summary of the invention
the utility model provides a kind of differential pressure damping unit and damp type differential pressure liquid level emasuring device; Overcome the deficiency of above-mentioned prior art, it can effectively solve the problem that the liquid level indication in use of low temperature tanker differential pressure levelmeter is unstable and possibly cause the low temperature tanker differential pressure levelmeter to damage.
The technical scheme one of
the utility model realizes through following measure: a kind of differential pressure damping unit comprises kapillary and damping air chamber; Kapillary and damping air chamber are fixed together and communicate, and the internal diameter of damping air chamber is more than or equal to 20 times of capillary inner diameter.
Be to the further optimization of above-mentioned utility model technical scheme one below or/and improve:
above-mentioned internal diameter capillaceous can be less than or equal to 1 millimeter, and the internal diameter of damping air chamber is more than or equal to 20 millimeters.
The technical scheme two of
the utility model realizes through following measure: a kind of damp type differential pressure liquid level emasuring device that uses the differential pressure damping unit comprises gas valve, liquid phase valve, equalizing valve, differential pressure levelmeter, differential pressure damping unit; Front end at gas phase pressure pipeline is equipped with gas valve; On preceding liquid phase pressure pipeline, liquid phase valve is installed; The left end capillaceous in the differential pressure damping unit and the right-hand member of preceding liquid phase pipeline link together; The right-hand member of damping air chamber is fixed together with the left end of back liquid phase pipeline; Be connected with balance pipe between gas phase pressure pipeline after the gas valve and the back liquid phase pressure pipeline, equalizing valve is installed on the balance pipe, between the right-hand member of gas phase pressure pipeline and back liquid phase pressure pipeline differential pressure levelmeter is installed.
the utility model reasonable and compact in structure, easy to use; Through the differential pressure damping unit is installed on liquid-phase tube; Can absorb effectively the low temperature tank car fill with transportation in pressure load; Make between gas phase and the liquid phase pressure end and keep stable pressure reduction; Guarantee that the liquid level indication is accurate, stable, avoid the frequently significantly swing of liquid level gauge pointer, therefore greatly prolonged the serviceable life of liquid level gauge.
Description of drawings
accompanying drawing 1 is the main TV structure synoptic diagram of existing known differential pressure levelmeter.
Syndeton synoptic diagram when
accompanying drawing 2 is installed on the liquid phase pressure pipeline for embodiment one differential pressure damping unit.
accompanying drawing 3 is the syndeton synoptic diagram of embodiment two damp type differential pressure liquid level emasuring devices.
Coding in
accompanying drawing is respectively: 1 is gas phase pressure pipeline, and 2 is gas valve, and 3 is liquid phase pressure pipeline, and 4 is liquid phase valve, and 5 is pipe fitting, and 6 is equalizing valve, and 7 is differential pressure levelmeter, and 8 is kapillary, and 9 are the damping air chamber.
Embodiment
the utility model does not receive the restriction of following embodiment, can confirm concrete embodiment according to the technical scheme and the actual conditions of the utility model.
are in the utility model; For the ease of describing; The description of the relative position relation of each parts all is to describe according to the Butut mode of Figure of description, as: the position relation of forward and backward, upper and lower, left and right etc. is what to confirm according to the Butut direction of Figure of description.
Below in conjunction with embodiment one, two and accompanying drawing the utility model is further described:
embodiment one: shown in accompanying drawing 2, this differential pressure damping unit comprises kapillary 8 and damping air chamber 9; Kapillary 8 is fixed together with damping air chamber 9 and communicates, and the internal diameter of damping air chamber 9 is more than or equal to 20 times of kapillary 8 internal diameters.
Can according to actual needs above-mentioned differential pressure damping unit be done further to optimize or/and improve:
shown in accompanying drawing 2, as required, the internal diameter of kapillary 8 is less than or equal to 1 millimeter, and the internal diameter of damping air chamber 9 is more than or equal to 20 millimeters.
embodiment two: shown in accompanying drawing 3, the damp type differential pressure liquid level emasuring device of this use differential pressure damping unit comprises gas phase pressure pipeline 1, gas valve 2, liquid phase pressure pipeline 3, liquid phase valve 4, equalizing valve 6, differential pressure levelmeter 7, kapillary 8 and damping air chamber 9; Gas phase pressure pipeline 1 is fixed together with equalizing valve 6 and differential pressure levelmeter 7 respectively through pipe fitting 5, on gas phase pressure pipeline 1, is installed with gas valve 2; Liquid phase pressure pipeline 3 is fixed together with equalizing valve 6 and differential pressure levelmeter 7 respectively through pipe fitting 5, on liquid phase pressure pipeline 3, is installed with liquid phase valve 4, kapillary 8 and damping air chamber 9 in regular turn.Like this; Through the series connection of kapillary 8 with buffering damping air chamber 9; Can absorb the pressure load that dynamic load causes in the low temperature tank car transportation effectively, make the pressure reduction of keeping voltage stabilizing between the gas, liquid pressure end, guarantee the liquid level indication accurately, stable; Avoid the frequently significantly swing of differential pressure levelmeter pointer simultaneously, prolonged the serviceable life of differential pressure levelmeter 7 widely.
above technical characterictic has constituted the embodiment of the utility model, and it has stronger adaptability and implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
Claims (3)
1. a differential pressure damping unit is characterized in that comprising kapillary and damping air chamber; Kapillary and damping air chamber are fixed together and communicate, and the internal diameter of damping air chamber is more than or equal to 20 times of capillary inner diameter.
2. differential pressure damping unit according to claim 1 is characterized in that internal diameter capillaceous is less than or equal to 1 millimeter, and the internal diameter of damping air chamber is more than or equal to 20 millimeters.
3. a damp type differential pressure liquid level emasuring device that uses differential pressure damping unit according to claim 1 and 2 is characterized in that comprising gas phase pressure pipeline, gas valve, liquid phase pressure pipeline, liquid phase valve, equalizing valve, differential pressure levelmeter, kapillary and damping air chamber; Gas phase pressure pipeline is fixed together with equalizing valve and differential pressure levelmeter respectively through pipe fitting, on gas phase pressure pipeline, is installed with gas valve; Liquid phase pressure pipeline is fixed together with equalizing valve and differential pressure levelmeter respectively through pipe fitting, on liquid phase pressure pipeline, is installed with liquid phase valve, kapillary and damping air chamber in regular turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203346588U CN202177424U (en) | 2011-09-07 | 2011-09-07 | Differential pressure damping device and damping type differential pressure liquid level measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203346588U CN202177424U (en) | 2011-09-07 | 2011-09-07 | Differential pressure damping device and damping type differential pressure liquid level measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202177424U true CN202177424U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203346588U Expired - Fee Related CN202177424U (en) | 2011-09-07 | 2011-09-07 | Differential pressure damping device and damping type differential pressure liquid level measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202177424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344867A (en) * | 2013-08-04 | 2015-02-11 | 四川锦美环保科技有限公司 | Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment |
| CN106643969A (en) * | 2016-12-10 | 2017-05-10 | 大连福佳·大化石油化工有限公司 | Open heating pot liquid level measuring system and method |
-
2011
- 2011-09-07 CN CN2011203346588U patent/CN202177424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344867A (en) * | 2013-08-04 | 2015-02-11 | 四川锦美环保科技有限公司 | Indirect contact liquid level detecting method and indirect contact liquid level detecting equipment |
| CN106643969A (en) * | 2016-12-10 | 2017-05-10 | 大连福佳·大化石油化工有限公司 | Open heating pot liquid level measuring system and method |
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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: 20120328 Termination date: 20170907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |