CN206192395U - LNG pump pool liquid level counts signal acquisition system - Google Patents
LNG pump pool liquid level counts signal acquisition system Download PDFInfo
- Publication number
- CN206192395U CN206192395U CN201621136849.2U CN201621136849U CN206192395U CN 206192395 U CN206192395 U CN 206192395U CN 201621136849 U CN201621136849 U CN 201621136849U CN 206192395 U CN206192395 U CN 206192395U
- Authority
- CN
- China
- Prior art keywords
- pump
- sheath
- liquid level
- lng
- level sensor
- Prior art date
- 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.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a LNG pump pool liquid level counts signal acquisition system, including the pump pond, pump pond top installation temperature sensor and level sensor, level sensor's below extends to pump bottom of the pool portion, the level sensor below outside sets up the sheath, the surface of sheath sets up a plurality of ventilation breathers, the sheath is located inside the pump pond, pump pond internally mounted low temperature immersed pump. LNG pump pool liquid level counts signal acquisition system, temperature sensor, level sensor and the protecting pipe of setting, simple structure, liquid level that can accurate tracer liquid has improved the system control precision, has effectively protected low temperature immersed pump, level sensor and temperature sensor's lectotype is not only corrosion -resistant, and measuring range is wide, has effectively guaranteed the life of system.
Description
Technical field
The utility model belongs to natural gas pump pond field, more particularly, to a kind of LNG pump pit level meter signal acquiring system.
Background technology
The level gauging in existing LNG pump pond be mainly be respectively mounted in the inlet in pump pond and pump pond temperature survey dress
Put, the temperature of pump pond feed liquor position and pump pond return-air position measured by temperature measuring equipment, then compare two temperature values with
Judge whether enough LNG have been filled inside pump pond.Because LNG can exist at different temperatures, and heat can be with
Propagated by gaseous medium, so purely comparing the liquid level that can not exactly detect LNG by temperature, often resulted in liquid
The inaccurate problem of position measurement, it is actually used in always occur that temperature meets the requirements in the case of, the phenomenon of pump operation evacuation.
The content of the invention
In view of this, the utility model is directed to a kind of LNG pump pit level meter signal acquiring system, to provide a kind of survey
Accuracy of measurement is high, strong antijamming capability, can adapt to the signal acquiring system in different volumes pump pond.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of LNG pump pit level meter signal acquiring system, including pump pond, low temperature immersed pump, temperature sensor, level sensing
Device and sheath, the pump pond top are installed by the temperature sensor and the liquid level sensor, the lower section of the liquid level sensor
The pump bottom of pond portion is extended to, the liquid level sensor lower outer sets the sheath, if the outer surface of the sheath is set
Dry spiracle, the sheath is located inside the pump pond, and the side in the pump pond sets gas returning port and inlet, and opposite side is set
The low temperature immersed pump is installed in liquid outlet, the pump pond inside, through described after the output end connecting pipe of the low temperature immersed pump
Liquid outlet is connected to extraneous filling apparatus.
Further, the sheath is the tubular structure of upper and lower ends closing, and the sheath is stainless steel, described to exhale
Sucker is through hole.
Further, the jacket inner wall and the distance range of the liquid level sensor are 5mm-10mm.
Further, the liquid level sensor is static pressure type liquid level sensor.
Further, the temperature sensor is heat-sensitive type temperature sensor.
Further, the filling apparatus of the liquid outlet pipeline connection can be LNG tank cars or LNG storage tank.
Further, it is respectively mounted stop valve on the outside of the gas returning port, inlet and liquid outlet.
Relative to prior art, LNG pump pit level meter signal acquiring system described in the utility model has the advantage that：
(1) LNG pump pit level meter signal acquiring system described in the utility model, the temperature sensor of setting, liquid level are passed
Sensor and protecting pipe, simple structure are capable of the liquid level of accurate detection liquid, improve system control accuracy, effectively protect low
Warm immersed pump.
(2) LNG pump pit level meter signal acquiring system described in the utility model, liquid level sensor is passed for static pressure type liquid level
Sensor, temperature sensor uses heat-sensitive type temperature sensor, not only corrosion-resistant, and measurement range is wide, and high precision is effectively ensured
The service precision and service life of system.
Brief description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing being further understood to of the present utility model, and this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the LNG pump pit level meter signal acquiring system structural representation described in the utility model embodiment.
Description of reference numerals：
1- pumps pond；11- gas returning ports；12- inlets；13- liquid outlets；2- low temperature immersed pumps；3- temperature sensors；4- liquid levels
Sensor；5- protecting pipes；51- spiracles.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to limitation of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, can be by concrete condition understanding
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of LNG pump pit level meter signal acquiring system, as shown in figure 1, being passed including pump pond 1, low temperature immersed pump 2, temperature
Sensor 3, liquid level sensor 4 and sheath 5, the top of the pump pond 1 are installed by the temperature sensor 3 and the liquid level sensor 4, institute
The lower section for stating liquid level sensor 4 extends to the bottom of pump pond 1, and the lower outer of the liquid level sensor 4 sets the sheath 5,
The outer surface of the sheath 5 sets some spiracles 51, and the sheath 5 is located inside the pump pond 1, the side in the pump pond 1
Gas returning port 11 and inlet 12 are set, and opposite side sets liquid outlet 13, and the low temperature immersed pump 2, institute are installed in the inside of the pump pond 1
After the output end connecting pipe 6 for stating low temperature immersed pump 2 extraneous filling apparatus are connected to through the liquid outlet 13.
Some spiracles 51 are set on the body of the protecting pipe 5, and the spiracle 51 is through hole, and liquid is by the feed liquor
After mouth 12 enters the pump pond 1, rolling and bubble can be produced, the spiracle 51 can effectively filter out bubble and rolling in pump pond
Liquid improves the precision of system to the detection error of the liquid level sensor 4, and the material of the protecting pipe 5 is stainless steel, corrosion resistant
Corrosion is strong.
The inwall of the sheath 5 is 5mm-10mm with the distance range of the liquid level sensor 4, ensures the liquid level sensor
4 are fully contacted with the liquid after filtering.
The liquid level sensor 4 is static pressure type liquid level sensor, and the range of the static pressure type liquid level sensor is big, its machinery
Structure has high-resistance to overload and Korrosionsmedium.
The temperature sensor 3 is heat-sensitive type temperature sensor, and sensitivity is high, and the use scope of cryogenic device is -273 DEG C
~-55 DEG C, more accurately.
The liquid outlet 13 connects LNG tank cars or LNG storage tank through piping.
The outside of the gas returning port 11, inlet 12 and liquid outlet 13 is respectively mounted stop valve.
The course of work of LNG pump pit level meter signal acquiring system is：
Liquid is loaded into pump pond 1 by inlet 12, when filling apparatus need LNG pump pond, being flowed out from liquid outlet 13 needs
Low temperature immersed pump 2 tells operating, to be adequately cooled before being operated due to low temperature immersed pump 2, and the effect of cooling is to allow low temperature
The rotary part of immersed pump 2 is lubricated, in case high-speed cruising causes to damage to low temperature immersed pump 2, so in the dynamic of liquid
During, temperature sensor 3 and liquid level sensor 4 constantly gather the data of liquid in pump pond 1, and are delivered to the PLC controls in the external world
System processed, PLC control system is controlled according to the data for collecting to low temperature immersed pump 2.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of LNG pump pit level meter signal acquiring system, it is characterised in that：Including pump pond (1), low temperature immersed pump (2), temperature
Sensor (3), liquid level sensor (4) and sheath (5),
Pump pond (1) top is installed by the temperature sensor (3) and the liquid level sensor (4), the liquid level sensor (4)
Lower section extend to pump pond (1) bottom, liquid level sensor (4) lower outer sets the sheath (5), the sheath
(5) outer surface sets some spiracles (51), and the sheath (5) is internal positioned at the pump pond (1),
The side of the pump pond (1) sets gas returning port (11) and inlet (12), and opposite side sets liquid outlet (13), the pump pond
(1) it is internal that the low temperature immersed pump (2) is installed, the output end connecting pipe (6) of the low temperature immersed pump (2) by it is described go out liquid
Mouth (13) is connected to extraneous filling apparatus.
2. LNG pump pit level meter signal acquiring system according to claim 1, it is characterised in that：The sheath (5) is upper
The tubular structure of lower closed at both ends, the sheath (5) is stainless steel, and the spiracle (51) is through hole.
3. LNG pump pit level meter signal acquiring system according to claim 1, it is characterised in that：Sheath (5) inwall
It is 5mm-10mm with the distance range of the liquid level sensor (4).
4. LNG pump pit level meter signal acquiring system according to claim 1, it is characterised in that：The liquid level sensor
(4) it is static pressure type liquid level sensor.
5. LNG pump pit level meter signal acquiring system according to claim 1, it is characterised in that：The temperature sensor
(3) it is heat-sensitive type temperature sensor.
6. LNG pump pit level meter signal acquiring system according to claim 1, it is characterised in that：The liquid outlet (13)
The filling apparatus of pipeline connection can be LNG tank cars or LNG storage tank.
7. LNG pump pit level meter signal acquiring system according to claim 1, it is characterised in that：The gas returning port (11),
Stop valve is respectively mounted on the outside of inlet (12) and liquid outlet (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621136849.2U CN206192395U (en) | 2016-10-17 | 2016-10-17 | LNG pump pool liquid level counts signal acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621136849.2U CN206192395U (en) | 2016-10-17 | 2016-10-17 | LNG pump pool liquid level counts signal acquisition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192395U true CN206192395U (en) | 2017-05-24 |
Family
ID=58731581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621136849.2U Active CN206192395U (en) | 2016-10-17 | 2016-10-17 | LNG pump pool liquid level counts signal acquisition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192395U (en) |
-
2016
- 2016-10-17 CN CN201621136849.2U patent/CN206192395U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201378135Y (en) | Liquid and on-line fluid density measuring device | |
| CN203364888U (en) | Differential pressure type flow sensor and flowmeter | |
| CN208860445U (en) | Straight-through steam tracing formula float level meter | |
| CN206192395U (en) | LNG pump pool liquid level counts signal acquisition system | |
| CN206146696U (en) | Purity appearance and gas sampling structure and heat conduction cushion sub thereof | |
| CN206192571U (en) | Type of falling U pipe differential gauge | |
| CN204439142U (en) | Low flow velocity, high precision pitot tube differential pressure flow sensor pressure head | |
| CN208333627U (en) | A kind of fluid flowmeter on-line checking self-calibrating device | |
| CN204422445U (en) | A kind of Oilfield Pipelines bearing analysis device | |
| CN204203030U (en) | A kind of intelligent densitometer | |
| CN110793583A (en) | Plug-in pipeline gas measuring instrument | |
| CN209014100U (en) | A kind of cold-proof magnetic double level gauge | |
| CN209356528U (en) | A kind of miniaturization high temperature wind speed feeler lever | |
| CN209784299U (en) | Corrosion inhibitor on-line evaluation device for oil-gas-water multiphase flow mixed transportation | |
| CN206209385U (en) | Double explosive barrel chemical liquid added automatically systems | |
| CN209372249U (en) | Aided measurement device and structure of lubricating oil line | |
| CN204085644U (en) | A kind of flow calibrating device | |
| CN209342165U (en) | Double flute ring wedge differential pressure device | |
| CN209014085U (en) | Contact-free level instrument | |
| CN207215205U (en) | A kind of ultrasonic flowmeter | |
| CN103344676B (en) | A kind of assay method of Dryness of Little Water in HF part | |
| CN206192452U (en) | LNG gasification system with low precision detection device | |
| CN209559309U (en) | Magnetic float level meter for vaporization type medium level gauging | |
| CN207081460U (en) | Device for measuring volumetric flow of fluid and device for storing liquid | |
| CN207799476U (en) | A kind of device for flow rate control and measurement in water pumping test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |