CN212693008U - Liquid level measuring device - Google Patents
Liquid level measuring device Download PDFInfo
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- CN212693008U CN212693008U CN202021666881.8U CN202021666881U CN212693008U CN 212693008 U CN212693008 U CN 212693008U CN 202021666881 U CN202021666881 U CN 202021666881U CN 212693008 U CN212693008 U CN 212693008U
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- liquid level
- level meter
- pipe
- measuring device
- gauge
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Abstract
The utility model discloses a liquid level measuring device, including first end and interior barrel (1) upside opening be connected and the second end wear out outer barrel (12) last liquid level meter pipe (3), first end and interior barrel (1) downside opening be connected and the second end wear out outer barrel (12) lower liquid level meter pipe (6), install in direct reading type level gauge (10) on outer barrel (12), the first connector of direct reading type level gauge (10) is connected with the second end of last liquid level meter pipe (3), the second connector of direct reading type level gauge (10) is connected with the second end of lower liquid level meter pipe (6), lower liquid level meter pipe (6) are in the downside opening part winding of interior barrel (1) has heat conduction circle (5), the first end of heat conduction circle (5) with outer barrel (12) are connected. The liquid level measuring device plays a role in stabilizing difference and pressure and ensures that the reading of the liquid level meter is correct.
Description
Technical Field
The utility model relates to a liquid level measurement technical field especially relates to a liquid level measurement device.
Background
The signal source of the low-temperature storage tank differential pressure liquid level meter is the difference between the gas phase pressure in the storage tank and the pressure at a lower liquid level point, and the sensing element is a pressure cavity formed by two corrugated pipes; the low pressure chamber is communicated with the gas in the top of the storage tank, the high pressure chamber is communicated with the liquid level point at the bottom of the storage tank, and when the liquid level meter works, the sensing film between the high and low pressure chambers senses the pressure difference value of the gas phase and the liquid level point, namely the liquid injection static pressure.
The low-temperature storage tank adopts a bellows differential pressure liquid level meter, when a small-range liquid level meter (a horizontal LNG storage tank) with the pressure of 15kpa is adopted, liquid easily enters a lower liquid level meter pipe when liquid is filled or a balance valve is opened, and the whole pipeline can be filled; the whole pipeline has a certain height difference, so that the liquid injection part of the storage tank is balanced by the liquid injection force in the pipeline, and the indication of the liquid level meter is distorted.
In summary, how to effectively solve the problems of inaccurate reading of the liquid level meter and the like caused by the fact that a large amount of liquid enters the lower liquid level meter pipe is a problem which needs to be solved urgently by a person skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a liquid level measuring device, this liquid level measuring device has played the effect of steady difference steady voltage, has guaranteed that the level gauge reading is correct.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a liquid level measuring device, includes that first end and interior barrel upside opening are connected and the second end wears out the last liquid level meter pipe of outer barrel, first end and interior barrel downside opening be connected and the second end wears out the lower liquid level meter pipe of outer barrel, install in direct reading type level gauge on the outer barrel, the first connector of direct reading type level gauge is connected with the second end of last liquid level meter pipe, the second connector of direct reading type level gauge is connected with the second end of lower liquid level meter pipe, the liquid level meter pipe is in down the downside opening part winding of interior barrel has the heat conduction circle, the first end of heat conduction circle with outer barrel is connected.
Preferably, a backing plate is welded on the outer cylinder, a first end of the heat conduction ring is welded on the backing plate, and a second end pressing line of the heat conduction ring is wound and fixed on the lower liquid level meter pipe.
Preferably, the heat conduction ring is a copper wire ring, and the backing plate is a stainless steel backing plate.
Preferably, the radians of the stainless steel backing plate and the outer cylinder are the same, and the stainless steel backing plate and the outer cylinder are welded through full welding.
Preferably, the diameter of the copper wire coil is not less than 2mm, and the winding length of the copper wire coil is 100-120 mm.
Preferably, the liquid level meter further comprises a remote transmission liquid level meter, and the remote transmission liquid level meter is connected with the third connecting port of the direct-reading liquid level meter through a pipeline.
Preferably, the direct-reading liquid level meter is respectively connected with the remote-transmission liquid level meter, the upper liquid level metering pipe and the lower liquid level metering pipe through a tee joint, and a pressure gauge is arranged on a pipeline at the position of the direct-reading liquid level meter.
Preferably, the direct-reading liquid level meter is respectively provided with an upper liquid level meter valve and a lower liquid level meter valve on pipelines of the upper liquid level meter pipe and the lower liquid level meter pipe through a tee joint.
Preferably, the upper side opening part of the inner cylinder body is welded with an upper liquid level meter connector, the first end of the upper liquid level meter pipe is welded with the upper liquid level meter connector, the lower side opening part of the inner cylinder body is welded with a lower liquid level meter connector, and the first end of the lower liquid level meter pipe is welded with the lower liquid level meter connector.
Preferably, the lower liquid level meter connector is a halberd-shaped connector, an inlet of the halberd-shaped connector is located on the side face of the lower liquid level meter connector and inclines downwards, the upper liquid level meter connector is a straight hole, and the axial direction of the inlet of the straight hole is perpendicular to the side wall of the inner cylinder.
The utility model provides a liquid level measuring device, including last liquid level meter pipe, lower liquid level meter pipe, direct reading formula level gauge and heat conduction circle. The upper side opening is arranged on the upper surface of the inner cylinder body, the lower side opening is arranged on the lower surface of the inner cylinder body, the first end of the upper liquid level measuring tube is connected with the upper side opening of the inner cylinder body, and the first end of the lower liquid level measuring tube is connected with the lower side opening of the inner cylinder body. The outer cylinder body is provided with a through hole, and the second end of the upper liquid level metering pipe and the second end of the lower liquid level metering pipe penetrate out of the outer cylinder body through the through hole. Preferably, the penetrating hole is formed in the center of the rear end of the outer cylinder, and the distance between the penetrating hole and the upper liquid level metering pipe is equal to that between the penetrating hole and the lower liquid level metering pipe, so that subsequent pipeline connection is facilitated. The direct-reading liquid level meter is arranged at the position of the penetrating hole of the outer barrel, a first connecting port of the direct-reading liquid level meter is connected with a second end of the upper liquid level metering pipe, a second connecting port of the direct-reading liquid level meter is connected with a second end of the lower liquid level metering pipe, and the difference between gas phase pressure in the storage tank and lower liquid level point pressure is detected to serve as a signal source of the low-temperature storage tank differential pressure liquid level meter.
In the first filling process, liquid enters the inner cylinder, gas in the lower liquid level meter pipe is rapidly cooled, a small amount of gas is cooled into liquid, negative pressure is formed in the lower liquid level meter pipe, and the liquid flows backwards into the lower liquid level meter pipe through the lower liquid level meter joint. Therefore, the lower liquid level meter pipe is wound with a heat conduction ring at the lower opening of the inner cylinder, and the first end of the heat conduction ring is connected with the outer cylinder. The design temperature in the low-temperature storage tank is-196 ℃, the design temperature of the outer cylinder is 60 ℃, the temperature of the outer cylinder is higher, and heat is conducted from the high-temperature region to the low-temperature region through the heat conduction ring, so that a small amount of liquid entering the lower liquid level meter pipe is changed into gas in a short time, and the purpose of gasifying the liquid in the lower liquid level meter pipe is achieved.
By applying the technical scheme provided by the embodiment of the utility model, the liquid in the lower liquid level meter pipe is gasified by utilizing the heat conduction mode, and a gas sealing structure is formed at the joint, so that the liquid is prevented from entering the lower liquid level meter pipe; because the gas state does not generate liquid injection static pressure, the pressure stabilizing effect is achieved, and the correct reading of the liquid level meter is ensured. Normal indication and no shaking are realized in the filling process of the storage tank; the static process indicates normal without shaking; the pressure relief process indicates normal without shaking; the liquid discharging tank slightly swings during cold irrigation, and the reading value is not influenced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a liquid level measuring device according to an embodiment of the present invention;
FIG. 2 is a side view of FIG. 1;
fig. 3 is an enlarged view at I in fig. 1.
The drawings are numbered as follows:
1-inner cylinder, 2-upper liquid level meter joint, 3-upper liquid level meter pipe, 4-lower liquid level meter joint, 5-heat conduction ring, 6-lower liquid level meter pipe, 7-stainless steel backing plate, 8-upper liquid level meter valve, 9-lower liquid level meter valve, 10-direct reading type liquid level meter, 11-remote transmission liquid level meter and 12-outer cylinder.
Detailed Description
The core of the utility model is to provide a liquid level measuring device, this liquid level measuring device has played the effect of steady difference steady voltage, has guaranteed that the level gauge reading is correct.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a liquid level measuring device according to an embodiment of the present invention; FIG. 2 is a side view of FIG. 1; fig. 3 is an enlarged view at I in fig. 1.
In a specific embodiment, the utility model provides a level measurement device, including first end and 1 upside opening connection of interior barrel and the second end wear out outer barrel 12 last liquid level meter pipe 3, first end and interior barrel 1 downside opening connection and the second end wear out outer barrel 12 lower liquid level meter pipe 6, install in direct reading type level gauge 10 on outer barrel 12, the first interface of direct reading type level gauge 10 is connected with the second end of last liquid level meter pipe 3, the second connector of direct reading type level gauge 10 is connected with the second end of lower liquid level meter pipe 6, lower liquid level meter pipe 6 is in the downside opening part winding of interior barrel 1 has heat conduction circle 5, the first end of heat conduction circle 5 with outer barrel 12 is connected.
In the above structure, the liquid level measuring device includes an upper liquid level meter tube 3, a lower liquid level meter tube 6, a direct reading type liquid level meter 10, and a heat conductive ring 5.
The inner cylinder body 1 is provided with an upper opening on the upper surface and a lower opening on the lower surface, the first end of the upper liquid level measuring tube 3 is connected with the upper opening of the inner cylinder body 1, and the first end of the lower liquid level measuring tube 6 is connected with the lower opening of the inner cylinder body 1.
The outer cylinder 12 is provided with a through hole, and the second end of the upper liquid level measuring tube 3 and the second end of the lower liquid level measuring tube 6 both penetrate out of the outer cylinder 12 through the through hole. Preferably, the through hole is formed at the center of the rear end of the outer cylinder 12, which is at a distance from the upper level tube 3 to the lower level tube 6, so that subsequent pipeline connection is facilitated.
The direct-reading liquid level meter 10 is installed at a penetrating hole of the outer barrel 12, a first connecting port of the direct-reading liquid level meter 10 is connected with a second end of the upper liquid level metering pipe 3, a second connecting port of the direct-reading liquid level meter 10 is connected with a second end of the lower liquid level metering pipe 6, and the difference between gas phase pressure in the storage tank and lower liquid level point pressure is detected to serve as a signal source of the low-temperature storage tank pressure difference liquid level meter.
In the first filling process, liquid enters the inner cylinder body 1, gas in the lower liquid level measuring pipe 6 is rapidly cooled, a small amount of gas is cooled into liquid, negative pressure is formed in the lower liquid level measuring pipe 6, and the liquid flows backwards into the lower liquid level measuring pipe 6 through the lower liquid level meter connector 4. Therefore, the lower liquid level meter tube 6 is wound with a heat conduction ring 5 at the lower opening of the inner cylinder 1, and the first end of the heat conduction ring 5 is connected with the outer cylinder 12. The design temperature in the low-temperature storage tank is-196 ℃, the design temperature of the outer cylinder body 12 is 60 ℃, the temperature of the outer cylinder body 12 is higher, and heat is conducted from the high-temperature region to the low-temperature region through the heat conduction ring 5, so that a small amount of liquid entering the lower liquid level metering tube 6 is changed into gas in a short time, and the purpose of gasifying the liquid in the lower liquid level metering tube 6 is achieved.
By applying the technical scheme provided by the embodiment of the utility model, the liquid in the lower liquid level measuring tube 6 is gasified by utilizing the heat conduction mode, and a gas sealing structure is formed at the joint, so that the liquid is prevented from entering the lower liquid level measuring tube 6; because the gas state does not generate liquid injection static pressure, the pressure stabilizing effect is achieved, and the correct reading of the liquid level meter is ensured. Normal indication and no shaking are realized in the filling process of the storage tank; the static process indicates normal without shaking; the pressure relief process indicates normal without shaking; the liquid discharging tank slightly swings during cold irrigation, and the reading value is not influenced.
On the basis of the above specific embodiment, a backing plate is welded on the outer cylinder 12, and the first end of the heat conduction ring 5 is welded on the backing plate, so as to enhance the strength of the outer cylinder 12 at the welding position. And the second end of the heat conduction ring 5 is wound and fixed on the lower liquid level meter tube 6, so that the heat conduction ring 5 is not easy to loose and is firmly connected. Meanwhile, the heat conducting ring 5 is not suitable for being stretched straight, and a proper amount of margin is left.
Further optimize above-mentioned technical scheme, heat conduction circle 5 is the copper wire circle, the backing plate is stainless steel backing plate 7, and the welding material performance is more close, changes in the welding, and the welding point is comparatively firm.
In order to further optimize the technical scheme, the radians of the stainless steel base plate 7 and the outer cylinder 12 are the same, and the stainless steel base plate 7 is tightly attached to the outer cylinder 12, is relatively flat and is easy to connect. Preferably, the stainless steel backing plate 7 and the outer cylinder 12 are welded by full welding, and the welding is firm and reliable and is not easy to crack.
A person skilled in the art can carry out a plurality of changes on the liquid level measuring device according to different specific occasions, the diameter of the copper wire ring is not less than 2mm, for example 3mm, the winding length of the copper wire ring is any value between 100 mm and 120mm, including an endpoint value, for example 110mm, and the heat conductivity of the copper wire ring is ensured. The diameter, the length unrestricted of concrete copper wire circle can be set for according to the difference of specific in service behavior by oneself, all are the utility model discloses a within the protection range.
The utility model provides a liquid level measuring device, under the unchangeable condition of other parts, still include teletransmission level gauge 11, teletransmission level gauge 11 with the third connector of direct-reading level gauge 10 passes through the tube coupling, teletransmission level gauge 11 and controller, and it is higher to detect the accuracy, and intelligent degree is higher.
Further optimize above-mentioned technical scheme, direct-reading level gauge 10 pass through the tee bend respectively with teletransmission level gauge 11, go up level meter pipe 3, lower level meter pipe 6 are connected, be provided with the manometer on the pipeline of direct-reading level gauge 10 department, the manometer detects the atmospheric pressure in the pipeline, prevents that atmospheric pressure is too high, has the guard action to components and parts, and is comparatively safe.
Furthermore, the direct-reading liquid level meter 10 is respectively provided with an upper liquid level meter valve 8 and a lower liquid level meter valve 9 on the pipelines of the upper liquid level meter pipe 3 and the lower liquid level meter pipe 6 through a tee joint, and the liquid level meter valves control the on-off of the liquid level meter pipes, so that the control is convenient. Preferably, the upper level gauge valve 8 and the lower level gauge valve 9 are electromagnetic valves, and the electromagnetic valves are connected with a controller to realize automatic control.
In another kind of comparatively reliable embodiment, on the basis of above-mentioned arbitrary one embodiment, the upside opening part welding of interior barrel 1 has the level gauge to connect 2, the first end and the last level gauge of going up level gauge pipe 3 connect 2 welded connection, the downside opening part welding of interior barrel 1 has down level gauge to connect 4, the first end and the lower level gauge of lower level gauge pipe 6 connect 4 welded connection, not only are favorable to interior barrel 1's opening and level gauge union coupling, make things convenient for the level gauge pipe to fix, still have the intensity reinforcement effect at the opening part to interior barrel 1.
The utility model provides a level measurement device should not be restricted to this kind of situation, under the unchangeable condition of other parts, level gauge joint 4 is the type of turnip joint down, the import that the type of turnip connects is located its side and slope downwards. The level gauge connects 4 to down and has improved, design into the turnip type and connect, connect 4 through winding copper wire circle and level gauge pipe 6 with heat conduction down level gauge pipe, make the liquid gasification in the level gauge pipe 6 down, because the increase of liquid gasification volume, promote intraductal liquid and remove in to the storage tank, level gauge connects 4 tops to form the gaseous state down, because the pressure in connecting equals with the pressure in the storage tank, unnecessary gas can be through connecting in the discharge storage tank, so connect 4 tops at level gauge down and form the atmoseal, prevent that liquid from getting into intraductally.
Go up level gauge joint 2 and can be the straight hole, the axis direction of straight hole import with the lateral wall of interior barrel 1 is perpendicular, straight hole simple structure, and processing is convenient.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a liquid level measuring device has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a liquid level measuring device, its characterized in that is connected and the second end wears out lower liquid level meter pipe (6) of outer barrel (12), install in direct reading type level gauge (10) on outer barrel (12) including first end and interior barrel (1) upside opening and the second end is connected and the second end wears out last liquid level meter pipe (3), the first end of direct reading type level gauge (10) is connected with the second end of last liquid level meter pipe (3), the second connector of direct reading type level gauge (10) is connected with the second end of lower liquid level meter pipe (6), lower liquid level meter pipe (6) are in the downside opening part winding of interior barrel (1) has heat conduction circle (5), the first end of heat conduction circle (5) with outer barrel (12) are connected.
2. The liquid level measuring device according to claim 1, wherein a backing plate is welded on the outer cylinder (12), a first end of the heat conducting ring (5) is welded on the backing plate, and a second end of the heat conducting ring (5) is wound and fixed on the lower liquid level meter pipe (6).
3. A liquid level measuring device according to claim 2, characterized in that the heat conducting ring (5) is a copper wire ring and the pad is a stainless steel pad (7).
4. The liquid level measuring device according to claim 3, characterized in that the stainless steel backing plate (7) and the outer cylinder (12) have the same radian, and the stainless steel backing plate (7) and the outer cylinder (12) are welded by full weld.
5. The liquid level measuring device of claim 3, wherein the diameter of the copper wire ring is not less than 2mm, and the winding length of the copper wire ring is 100-120 mm.
6. The liquid level measuring device according to claim 1, further comprising a remote transmission liquid level meter (11), wherein the remote transmission liquid level meter (11) is connected with the third connecting port of the direct reading liquid level meter (10) through a pipeline.
7. The liquid level measuring device according to claim 6, wherein the direct reading type liquid level meter (10) is respectively connected with the remote transmission liquid level meter (11), the upper liquid level meter pipe (3) and the lower liquid level meter pipe (6) through a tee joint, and a pressure gauge is arranged on a pipeline at the direct reading type liquid level meter (10).
8. The liquid level measuring device according to claim 7, wherein the direct reading type liquid level meter (10) is provided with an upper liquid level meter valve (8) and a lower liquid level meter valve (9) respectively on the pipelines of the upper liquid level meter pipe (3) and the lower liquid level meter pipe (6) respectively through a tee joint.
9. The liquid level measuring device according to any one of claims 1-8, wherein an upper level gauge joint (2) is welded at an upper side opening of the inner cylinder (1), a first end of the upper level gauge pipe (3) is welded with the upper level gauge joint (2), a lower level gauge joint (4) is welded at a lower side opening of the inner cylinder (1), and a first end of the lower level gauge pipe (6) is welded with the lower level gauge joint (4).
10. The liquid level measuring device according to claim 9, wherein the lower liquid level meter connector (4) is a Bo-type connector, the inlet of the Bo-type connector is positioned on the side surface of the lower liquid level meter connector and is inclined downwards, the upper liquid level meter connector (2) is a straight hole, and the axial direction of the inlet of the straight hole is vertical to the side wall of the inner cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021666881.8U CN212693008U (en) | 2020-08-11 | 2020-08-11 | Liquid level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021666881.8U CN212693008U (en) | 2020-08-11 | 2020-08-11 | Liquid level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212693008U true CN212693008U (en) | 2021-03-12 |
Family
ID=74901984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021666881.8U Expired - Fee Related CN212693008U (en) | 2020-08-11 | 2020-08-11 | Liquid level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212693008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720416A (en) * | 2021-08-31 | 2021-11-30 | 广船国际有限公司 | Ship liquid level measuring device and measuring method |
-
2020
- 2020-08-11 CN CN202021666881.8U patent/CN212693008U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720416A (en) * | 2021-08-31 | 2021-11-30 | 广船国际有限公司 | Ship liquid level measuring device and measuring method |
| CN113720416B (en) * | 2021-08-31 | 2024-02-02 | 广船国际有限公司 | Ship liquid level measuring device and measuring method |
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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: 20210312 |