CN207215237U - Differential pressure type level gauge liquid phase device improved structure - Google Patents
Differential pressure type level gauge liquid phase device improved structure Download PDFInfo
- Publication number
- CN207215237U CN207215237U CN201721213015.1U CN201721213015U CN207215237U CN 207215237 U CN207215237 U CN 207215237U CN 201721213015 U CN201721213015 U CN 201721213015U CN 207215237 U CN207215237 U CN 207215237U
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- liquid
- level gauge
- differential pressure
- pressure type
- type level
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Abstract
The utility model discloses a kind of differential pressure type level gauge liquid phase device improved structure, including liquid-phase tube, the liquid-phase tube is provided with and takes liquid point and damping joint, one section of vertical pipeline is provided with after the damping joint, the vertical pipeline lower end is provided with U-shaped curved, the U-shaped curved port of export connecting valve and heat-exchange finned tube.The utility model solves takes the highly inconsistent caused measurement error problems of too of liquid point and gasification point by liquid-phase tube, and simple in construction, exploitativeness is strong.
Description
Technical field
LNG peculiar to vessel (liquefied natural gas) fuel tank apparatus field is the utility model is related to, is related specifically to a kind of differential pressure type
The improved structure of liquid level gauge liquid phase device.
Background technology
LNG fuel tank equipment peculiar to vessel is horizontal double shells container, and tank body primary structure is by inner bag, shell, pipeline (interlayer pipe
Pipeline control system in road and tank room), support, saddle, the composition such as tank room.The inner bag storage temperature is about -162 DEG C
LNG media, (interlayer) is incubated and is evacuated using heat-insulating material between inner bag and shell, at present to use differential pressure type liquid more
Position meter carries out level gauging.The operation principle of the differential pressure type level gauge is：Liquid level gauge liquid-phase tube gathers the minimum liquid of liner at the bottom
The pressure signal in site, gas phase pipe gather the gaseous pressure above liquid phase, measure 2 points of pressure difference value --- i.e. in basin
The fluid column static pressure of cryogenic liquid, is finally reflected on liquid level gauge transmitter.
Existing differential pressure type level gauge liquid phase device includes liquid level gauge liquid-phase tube, and the liquid-phase tube introduces tank room from shell
Afterwards, walk straight finally accesses liquid level upwards to passing through valve and crossing heat-exchange finned tube (pipe internal liquid is gasified by it)
Count transmitter.Although the structure also meets functional requirement, liquid point is taken in inner bag bottommost, and gasification point changing on top
At hot finned tube, i.e., two-way pressure difference is not the pressure differential of highs and lows, causes to feed back to by liquid level gauge transmitter
The liquid level of terminal, which is shown, has error.For the error, operator can typically accumulate data again, then according to error information
Reading is reset, it is not accurate enough directly perceived not only result in measurement data, and operating procedure is complicated, and is brought for work
Inconvenience.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of improved structure of differential pressure type level gauge liquid phase device, with
Reduce the measurement error caused by liquid-phase tube takes liquid point and gasification point highly inconsistent.
Technical scheme is used by the utility model solves its technical problem：A kind of differential pressure type level gauge liquid phase device changes
Enter structure, including liquid-phase tube, the liquid-phase tube, which is provided with, takes liquid point and damping joint, and one section is provided with after the damping joint vertically
Pipeline, the vertical pipeline lower end are provided with U-shaped curved, the U-shaped curved port of export connecting valve and heat-exchange finned tube.
Further, the U-shaped curved port of export is with taking liquid point to flush.
The utility model beneficial effect is：The utility model is improved to traditional differential pressure type level gauge liquid phase device,
In the case where not influenceing original function, it ensure that liquid level gauge liquid-phase tube gasification point and take liquid point in sustained height so that measure
Liquid level it is very accurate, reduce measurement error.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is differential pressure type level gauge liquid phase device improved structure schematic diagram of the present utility model.
Fig. 2 is the enlarged drawing of improved structure described in the utility model.
Fig. 3 is differential pressure type level gauge liquid phase device original structure schematic diagram of the present utility model.
Fig. 4 is the improvement project schematic diagram of differential pressure type level gauge liquid phase device failure of the present utility model.
In accompanying drawing
1st, liquid-phase tube 2, take liquid point 3, damping joint
4th, vertical pipeline 5, U-shaped curved 6, valve
7th, heat-exchange finned tube
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining that this practicality is new
Type, it is not used to limit the utility model.
As shown in Figure 1 and Figure 2, differential pressure type level gauge liquid phase device improved structure described in the utility model includes liquid-phase tube
1, liquid-phase tube is provided with and takes liquid point 2 and damping joint 3, is provided with one section of vertical pipeline 4 after damping joint 3, the lower end of vertical pipeline 4 is set
Have U-shaped curved 5, U-shaped curved 5 port of export connection heat-exchange finned tube 6.
In the utility model, it is ensured that U-shaped curved 5 port of export is needed to liquid-phase tube 1 everywhere with taking liquid point 2 to flush
Height limited.In the present embodiment, it is 100-180mm to take the difference in height between liquid point 2 and damping joint 3, VERTICAL TUBE
The length in road 4 is 180-200mm, U-shaped curved 5 bottom and to take the difference in height between liquid point 2 be 120-150mm.
【Embodiment】
It is continuous to measure ten not good liquor phase pressures using the differential pressure type level gauge liquid phase device improved structure described in the present embodiment,
Obtained data are 302.5N.
【Comparative example 1】
Using differential pressure type level gauge liquid phase device as shown in Figure 3, ten not good liquor phase pressures are continuously measured under the same conditions,
Obtained data be followed successively by 306.2N, 298.7N, 299.6N, 309.1N, 300.0N, 296.5N, 305.0N, 295.1N,
308.5N, 305.4N, average are about 302.5N.
【Comparative example 2】
Using differential pressure type level gauge liquid phase device as shown in Figure 4, ten not good liquor phase pressures are continuously measured under the same conditions,
Obtained data are taken the mean as 300.8N, error be present.
In summary, a kind of differential pressure type level gauge liquid phase device improved structure disclosed in the utility model is reduction liquid phase pressure
The optimal case of power measurement error.
Although the illustrative embodiment of the utility model is described above, in order to the art
Technical staff is it will be appreciated that the utility model, but the utility model is not limited only to the scope of embodiment, to this technology
For the those of ordinary skill in field, as long as long as the utility model that various change is limited and determined in appended claim
In spirit and scope, all are created in the row of protection using the utility model of the utility model design.
Claims (2)
1. a kind of differential pressure type level gauge liquid phase device improved structure, including liquid-phase tube, it is characterised in that：The liquid-phase tube is provided with
Liquid point and damping joint are taken, one section of vertical pipeline is provided with after the damping joint, the vertical pipeline lower end is provided with U-shaped curved, institute
State U-shaped curved port of export connecting valve and heat-exchange finned tube.
2. as a kind of differential pressure type level gauge liquid phase device improved structure described in claim 1, it is characterised in that：It is described U-shaped curved
The port of export with taking liquid point to flush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213015.1U CN207215237U (en) | 2017-09-21 | 2017-09-21 | Differential pressure type level gauge liquid phase device improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213015.1U CN207215237U (en) | 2017-09-21 | 2017-09-21 | Differential pressure type level gauge liquid phase device improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207215237U true CN207215237U (en) | 2018-04-10 |
Family
ID=61822168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721213015.1U Expired - Fee Related CN207215237U (en) | 2017-09-21 | 2017-09-21 | Differential pressure type level gauge liquid phase device improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207215237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112969883A (en) * | 2018-11-07 | 2021-06-15 | 瓦锡兰芬兰有限公司 | Low-temperature fuel tank |
-
2017
- 2017-09-21 CN CN201721213015.1U patent/CN207215237U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112969883A (en) * | 2018-11-07 | 2021-06-15 | 瓦锡兰芬兰有限公司 | Low-temperature fuel tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20210921 |