KR101167914B1 - Remote sounding system for tank having tube structure - Google Patents

Abstract

The present invention has a pressure tube member formed in a small diameter so as to be bent as a body of an integral tube structure and having a connecting socket at the upper end, so that the installation is easy and the loss of the compressed air is very small, thus operating the remote level measurement device. It is possible to provide a tank remote level measurement device having a tube structure that can improve the level measurement accuracy while reducing the cost.
Tank remote level measurement device having a tube structure of the present invention is a pressure tube member (100) having a small diameter and having a connecting socket (110) at the upper end to be bent as a body of an integral tube structure, and such a pressure tube The socket coupling portion 210 is formed at one end to be mounted to the connection socket 110 of the member 100, the tank through connection portion 220 is formed at the middle portion, the adapter having the first flange 230 is formed at the other end A member 200, a level sensor 300 mounted on an upper portion of the adapter member 200, a signal transmission unit 400 connected to the level sensor 300, and the signal transmission unit 400. And a level measurement central control unit 500 for wireless communication.

Description

Tank remote level measurement device having a tube structure {REMOTE SOUNDING SYSTEM FOR TANK HAVING TUBE STRUCTURE}

The present invention relates to a tank remote level measuring device having a tubular structure, and more particularly to a device for measuring the level of the liquid filled in a tank having a deep depth, such as a ship or a float, a stern tank of a floating equipment, ballast tanks, etc. It relates to a tank remote level measuring device having a tube structure that can be easily installed in the preceding stage of the ship.

In general, ships can be divided into hull and chairman. As is well known, the chairman in a ship may mean all the necessary devices for operating the ship as part of the ship except for the hull.

The ship's design includes hull mooring, transportation, ventilating, life-saving, fire-extinguishing, and hull rigs for loading and unloading, and hulls for fuels, fresh water, sanitary seawater, bilge, ballast, sewage, sounding, and plumbing. Subsidiary piping design, painting tips, surface treatment, painting and insect repellent design for cement, electric insect repellent, and residential design for simple wall, table, ceiling, deck cover, laundry room, drying room, warehouse, food warehouse, etc. Deck equipment rigs for sailing machines, weaving machines, mooring machines, steering gears, freezers, spare parts, etc., and fasteners and equipment rigs for navigational instruments, beacons, lights, tools, etc.

On the other hand, advanced outfitting refers to a construction to install a part of the equipment at the same time as the hull construction.

The preceding chairman may be carried out to carry out the installation of the equipment after the block is mounted, to accumulate the equipment after the block, or to work on the ceiling, or to be disturbed by other construction work on board, or to reduce work-cost.

Competitive design work requires that various equipments can be installed by the optimal procedure, method and structure within a given ship's specifications, and the installed equipment should be easy to operate, repair and maintain.

1A and 1B, a stern tank or a ballast tank 2 of the ship 1 is provided, and each tank 2 is filled or discharged with a liquid such as ballast water in the tank. The ballast water supply device 10 is installed.

In addition, each tank 2 is provided with a liquid level gauge 20 for measuring the level of the stored liquid.

The level gauge 20 is configured to measure the level of the liquid stored in the tank 2 using compressed air. The liquid level gauge 20 may be connected to the bottom of the tank 2 through a pipe pipe 21 of several tens to hundreds of meters.

The liquid level gauge 20 includes a measuring unit for measuring the level of the liquid stored in the tank 2 by comparing and calculating the pressure of the compressed air supplied from the outside and the atmospheric pressure received by the liquid stored in the tank 2.

In particular, the pipe pipe 21 used in the prior art should be extended to the bottom of the tank (2) of several tens of meters or more by connecting a pipe piece of pipe lengths of 3 m in length and 30 mm in inner diameter, respectively. .

Conventional liquid level gauge 20 and piping pipe 21 are the construction regulations for various equipments listed in the technical specification prepared at the time of ship construction contract with ship owners, or the technical regulations of special equipment according to the characteristics of the vessel. Its installation position is very limited because it must be observed.

For example, the pipe pipe 21 connected to the liquid level gauge 20 maintains a 2.7 m up and down arrangement interval q while maintaining a predetermined separation distance a from the inner surface of the tank 2 according to the measuring instrument technical regulations. It is fixed to and used for seven pipe 23 exclusive support.

Here, since the weight of the piping pipe 21 belongs to the item of heavy weight equipment, seven pipe support 23 is needed.

The lower end of the piping pipe 21 should be machined at a 45 ° chamfer angle (b), and a dead zone of 100 mm from the tank bottom surface (c) for reasons of technical specifications of the liquid level gauge 20. Must be observed.

However, since the pipe pipe 21 of the prior art has a relatively large pipe cross-sectional area d having an inner diameter of 30 mm, the loss of the compressed air supplied from the liquid level gauge 20 has a very large disadvantage.

In addition, inside the lower end of the piping pipe 21 having a large loss of compressed air, an interface 26 of the liquid column height e in which the compressed air layer 24 and the liquid layer 25 are in pressure balance is formed. Due to the loss of compressed air or the welding construction of the piping pipe 21, the liquid column height e of the interface 26 is formed larger than the reference value f. It is pointed out that as a result, the level measurement sensitivity decreases as a result.

In addition, although the lower end of the pipe pipe 21 maintains a dead zone of 100 mm between the tank bottom surface and the holding interval c as defined in the technical standard of the liquid level gauge 20, the tank 2 There is an area (g) that does not protect the dead zone due to the rounded corners of), which is also an error when measuring the level.

On the other hand, the installation work of the pipe pipe 21 and the pipe dedicated support 23 is not completed in the preceding chair, and as a result of the welding work in the subsequent chair again, has a very complicated and difficult disadvantages in many installation work.

In particular, since the pipe pipes 21 are welded through the pipe sleeve 22, the unit pipes are easily generated within the pipe, and the unit pipe is connected to the pipe sleeve 22 once due to the nature of the welding operation. There is a downside to making modifications very difficult.

In addition, the use of 78 unit pipes and pipe dedicated support 23 per vessel, the situation is relatively high material loss, a lot of work takes time.

Accordingly, the present invention is provided with a pressure tube member formed in a small diameter so as to be bent as a body of an integral tube structure and having a connection socket at the upper end, so that the installation of the pressure tube member and the adapter member is completed in the preceding chairman. It can be finished and be easily and accurately installed by bending the pressure tube member according to the tank installation environment, and the loss of compressed air is very small due to the use of the small diameter pressure tube member. It is possible to provide a tank remote level measurement device having a tube structure capable of improving measurement accuracy.

According to one aspect of the invention, when installed in the tank is formed of a small diameter to be bent as a body of the integral tube structure and having a connection socket on the upper end and one side to be mounted on the connection socket of the pressure tube member A socket coupling portion is formed at an end portion, and a tank through connection portion is formed at an intermediate portion thereof. An adapter member having a first flange formed at the other end portion, a level sensor having a second flange coupled to the first flange, and connected to the level sensor A tank remote level measurement apparatus having a tube structure including a signal transmission unit and a level measurement central control unit for wireless communication with the signal transmission unit can be provided.

According to the present invention, a pressure tube member formed in a small diameter so as to be bent as a body of an integral tube structure and having a connecting socket at an upper end thereof can be installed in the tank by extending from several tens to hundreds of meters in length. There is an effect that both the installation of the member and the adapter member can be finished in the preceding design.

In addition, the present invention is easy to adjust the position of the end portion by arranging the pressure tube member or bending the end of the pressure tube member in accordance with the installation environment inside the tank can easily fit the dead zone and level measurement error according to the exact installation There is an advantage to reduce.

In addition, the present invention has the advantage that the loss of the compressed air is very small by using a pressure tube member having a small diameter can improve the level measurement accuracy while reducing the device operating cost.

In addition, the present invention is provided with a protective layer of a synthetic resin material on the outside of the pressure tube member is resistant to corrosion and excellent durability.

In addition, the present invention, as the pressure tube member is fastened to the level sensor through the adapter member, it is easy to check the leakage compared to the existing pipe construction, there is an advantage that can reduce the material cost.

1A is a plan view of a vessel conventionally having a plurality of liquid storage tanks.
1B is a cross-sectional view of the hull starboard showing the liquid level gauge provided in FIG. 1A and its installation structure.
2 is a block diagram of a tank remote level measurement device having a tube structure according to an embodiment of the present invention.
3 is a cross-sectional view of the hull starboard showing the installation structure of the apparatus shown in FIG.
4 is a cross-sectional view of the hull starboard showing the installation structure according to the application of the present invention.

The present invention includes a technical means that can be applied to the design technology of the ship to improve the level measurement accuracy of the remote level measurement device while making it easy and accurate installation installation. This technical means can solve the problems in the prior art.

Advantages and features of the present invention, and methods for achieving them will become apparent with reference to the embodiments or applications described below in detail in conjunction with the accompanying drawings. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. It is provided to fully inform the person skilled in the art the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments or applications of the present invention, if it is determined that the detailed description of the known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, terms to be described below are terms defined in consideration of functions in an embodiment or application of the present invention and may vary according to intention or custom of a user or an operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a tank remote level measurement device having a tube structure according to an embodiment of the present invention.

Referring to FIG. 2, a pressure tube member 100 having a small diameter so as to be bent as a body of an integral tube structure and having a connection socket 110 at an upper end thereof, and a connection socket of such a pressure tube member 100. The adapter member 200 is formed at one end so that the socket coupling portion 210 is formed, the tank through connection portion 220 is formed at the middle portion, and the first flange 230 is formed at the other end thereof. A level sensor 300 installed on the upper part of the member 200, a signal transmission unit 400 connected to the level sensor 300, and a level measurement central control in wireless communication with the signal transmission unit 400. It may include a portion 500.

In the description of the present invention, the integrated tube structure may mean a bending structure that can be installed inside the tank by bending the pressure tube member 100.

The pressure tube member 100 may be formed in a small diameter so that it can be bent as a body of an integral tube structure.

For example, the pressure tube member 100 is formed with a length of 30m (maximum integral extension length 600m), an inner diameter of 7 to 10mm, the most preferred inner diameter of 8mm, member pipe wall thickness of 1 ~ 1.1mm within a finite bending angle during installation It can be formed to be bent in the.

In addition, the pressure tube member 100 may include a tube-shaped base material layer 102 and a protective layer 103 formed on the outside of the base material layer 102 based on the hollow 101 thereof.

The material of the base material layer 102 may be formed of stainless material (SUS316L).

The material of the protective layer 103 may be formed of a synthetic resin material to prevent the absorption or corrosion of the base material layer (102). For example, PVC may be used as the synthetic resin material.

The connection socket 110 may be provided at the upper end of the pressure tube member 100.

The connection socket 110 may be connected to the adapter member 200 using a well-known fitting method.

As the adapter member 200 is fixed to cover the tank wall such as the upper wall 33 of the tank by using the tank through connector 220 to be hermetically penetrated, the pressure tube member 100 inside the tank and the outside of the tank are fixed. It can be used as a means for connecting between the level sensor 300 of.

To this end, the adapter member 200 is a socket coupling portion 210 that can be fastened to the connection socket 110 of the pressure tube member 100, and the first coupling pipe coupled to the upper portion of such a socket coupling portion 210. A member 211 and a tank through connector 220 which is coupled to an upper portion of the first connecting member 211 and fixed so as to be hermetically penetrated through the tank wall, and penetrates an upper portion of the tank through connector 220. A second connector member 221 coupled to each other, and a first flange 230 formed at an end of the second connector member 221 and forming a plurality of bolt installation holes for a bolt mounting method. can do.

The method of attaching the connection socket 110 and the socket coupling part 210 in such a manner as to be attachable may use a well-known method such as a screw coupling method, a snap fit method, and a geometric occlusal shape between the fastening targets.

The level sensor 300 may include a second flange 310 that is mated or coupled to the first flange 230. The level sensor 300 may be coupled to or installed with a compressed air supply device (not shown) to receive compressed air from the outside.

The lower part of the body of the level sensor 300 may be connected to the second flange 310 through the lower pipe.

The level sensor 300 may be configured to compare and calculate the pressure of the compressed air supplied and the atmospheric pressure received by the liquid in the tank to measure the level of the liquid stored in the tank.

That is, the level sensor 300 is a pressure sensor (not shown) for measuring the water pressure in proportion to the liquid storage amount, and the inside of the detector on the pressure tube member 100 to supply compressed air to the pressure tube member 100 at the time of level measurement. It may be provided with an electronic valve (not shown) that is responsible for opening and closing the pipeline.

The level sensor 300 may include a first connection port 320 for unit connection and a second connection port 330 for device tester connection.

The signal transmission unit 400 may be connected to the level sensor 300 through the first connection port 320 of the level sensor 300.

The signal transmission unit 400 may include a data logging unit for converting a measurement value input from the level sensor 300 into a digital signal, and a transmitter for wirelessly transmitting the digital signal converted by the data logging unit.

The level measurement central control unit 500 stores a receiver 510 for wireless communication with a transmitter of the signal transmission unit 400 and a digital signal coming through the receiver 510 to a predetermined level measurement algorithm and stored in the tank. It may be configured as a server device 520 that calculates the level of the liquid and outputs it through known display means.

Next, the installation structure of the tank remote level measuring device having a tube structure having the above-described configuration will be described.

Referring to FIG. 3, which is a cross-sectional view of the starboard starboard based on the center line CL, the pressure tube member 100 may be cut to have a length in consideration of an allowance corresponding to each tank 30 of the hull, and the corresponding tank ( It may be bent and installed corresponding to the internal shape or internal structure of 30).

In particular, the connection socket 110 formed on the upper end of the pressure tube member 100 may be fastened to the socket coupling portion 210 which is the lower end or one end of the adapter member 200.

The adapter member 200 may be fixed by welding after being hermetically penetrated through the upper wall 33 of the tank 30 by using the tank through connector 220. In addition, although not shown, the adapter member 200 may be fixed and installed on the side wall of the tank 30 by the same fixing method.

The adapter member 200 may be coupled to the level sensor 300 through a flange fastening method.

The pressure tube member 100, which receives the pressure of the compressed air from the level sensor 300 through the adapter member 200, does not use a dedicated support as before through the bending construction, but is already installed in the tank 30. It may be fixed and supported using a facility support 31 (eg, a support for a gas sampling facility, etc.).

In addition, since there is no limitation in the length or installation angle of the pressure tube member 100, the installation position (M) for the adapter member 200 and the level sensor 300 in the preceding design step can be easily made.

In addition, the preceding chair is to bend the pressure tube member as close as possible to the inner surface of the tank and fixed to the other equipment support 31 is already installed, thereby minimizing interference with other equipment, adapter member 200 And the installation of the pressure tube member 100 can all be finished in the preceding design.

The adapter member 200 and the pressure tube member 100 are connected to each other in a socket-tight manner, or the adapter member 200 and the level sensor 300 are also connected to each other in a flange-tight manner, so that the leak test can be performed. It is easy to attach the device (not shown) to facilitate the leakage inspection work compared to the existing pipe construction.

In particular, the end of the pressure tube member 100 is bent by the operator without the need to be processed at the chamfering angle as before, the position and orientation (adjustment) is adjusted, corresponding to the dead zone (Z) precise and easy Can be arranged. Accordingly, it is possible to prevent the occurrence of an error in the level measurement of the level sensor 300 in advance.

In addition, as the inner diameter of the pressure tube member 100 has a relatively small cross-sectional area of 7 to 10 mm, the loss of the compressed air supplied from the level sensor 300 is very small.

For example, when the inner diameter of the pressure tube member 100 is less than 7 mm, the level sensor 300 begins to drop in the pressure transfer rate, making it difficult to use in the level sensor 300, and when exceeding 10 mm, the optimum measuring conditions Compared with the increase in the amount of loss of compressed air, the use of compressed air can also increase the error rate.

Therefore, when the inner diameter of the pressure tube member 100 is 7 to 10 mm, preferably about 8 mm, the optimum level measurement condition is achieved. Therefore, the compressed air layer and the liquid layer are pressurized inside the lower end of the pressure tube member 100. Balanced liquid column height (H) can be maintained below the reference value 100mm, as a result, it is possible to improve the level measurement sensitivity or accuracy, it is possible to reduce the remote level measurement device operating cost.

As shown in FIG. 4, in some cases the vessel may have a tank 60 formed between the bottom of the cargo hold 40 and the double bottom ship shell 50, in which case the sensing point is centered on the tank 60. It needs to be positioned towards

Even in this case, the present invention can be bent to the place to be measured using a relatively long length of the pressure tube member 100 without changing the installation position of the level sensor 300 to position the end of the pressure tube member 100 By doing so, precise level measurement can be performed while simplifying the installation of the tank remote level measuring device without excessive design change of the vessel structure.

In the above description, various embodiments or application examples of the present invention have been described and described, but the present invention is not necessarily limited thereto, and a person having ordinary skill in the art to which the present invention belongs does not depart from the technical spirit of the present invention. It will be readily appreciated that various substitutions, modifications and variations are possible within the scope of the invention.

100: pressure tube member 110: connecting socket
200: adapter member 210: socket coupling portion
220: tank through connection 230: first flange
300: level sensor 310: second flange
320: first connection port 330: second connection port
400: signal transmission unit 500: central control unit for level measurement

Claims (4)

A pressure tube member having a small diameter so as to be bent as a body of an integral tube structure when installed in a tank, and having a connecting socket at an upper end thereof;
An adapter member having a socket coupling portion formed at one end thereof and a tank through connecting portion formed at an intermediate portion thereof so as to be attached to the connection socket of the pressure tube member, and a first flange formed at the other end thereof;
A level sensor having a second flange coupled to the first flange,
A signal transmission unit connected to the level sensor;
In the tank remote level measuring device having a tube structure including a level measuring central control unit for wireless communication with the signal transmission unit,
The adapter member,
A socket coupling part fastened to the connection socket of the pressure tube member;
A first connector member coupled to the upper portion of the socket coupling part;
A tank through connecting portion coupled to an upper portion of the first connecting pipe member and fixed to penetrate through the tank wall in an airtight manner;
A second connecting pipe member coupled to an upper portion of the tank through connecting portion;
And a first flange formed at an end of the second connection pipe member and forming a plurality of bolt installation holes for bolt mounting.
Tank remote level measurement device having a tube structure.
The method of claim 1,
The pressure tube member,
A tubular base material layer made of stainless material and a protective layer made of synthetic resin material formed thereon
Tank remote level measurement device having a tube structure.
The method according to claim 1 or 2,
The pressure tube member,
It is formed to have an inner diameter of 8 to 9mm to be bent to maintain the height of the liquid column in the interior of the pressure tube member to less than the reference value while reducing the loss of compressed air when installed in the tank
Tank remote level measurement device having a tube structure.
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