Sealing device for float level meter of large tank

Abstract

The utility model discloses a sealing device for a float level meter of a large tank, which comprises a stringing pulley block and a U-shaped pipe group, and the stringing pulley block is arranged in the U-shaped pipe group; the U-shaped pipe group comprises a first U-shaped pipe and a second U-shaped pipe which are connected end to end; a U-shaped opening of the first U-shaped pipe faces downwards, a U-shaped opening of the second U-shaped pipe faces upwards, the opening end of the first U-shaped pipe is used for being connected with a detection opening of a large tank, and the second U-shaped pipe is filled with sealing liquid. The pull rope sealing device can be applied to pull rope sealing of the floater liquid level meter, and gas is prevented from escaping from the top of a large tank; the U-shaped pipe is arranged at the top of the tank, the pull rope of the floater liquid level meter penetrates through the interior of the U-shaped pipe, and the liquid seal in the U-shaped pipe is adopted to achieve sealing, so that dissipation of gas in the tank is completely eradicated, and the problem of environmental pollution is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level meter technical field, concretely is a kind of big tank float liquid level meter sealing device. BACKGROUND

[0002] Big tank liquid level meter is the important equipment for measuring the height of liquid in storage tank, widely used in petroleum, chemical industry, food, pharmaceutical industry, is the important equipment for measuring the height of liquid in storage tank, mainly has float liquid level meter, magnetic flap liquid level meter, ultrasonic liquid level meter, radar liquid level meter, various liquid level meters measure liquid level by different principles. Among them, float liquid level meter is widely used in the liquid level monitoring of various liquid storage tanks with its simple structure, easy installation and maintenance, low cost and suitable for various liquid measurement. Float liquid level meter is based on Archimedes buoyancy principle, i.e. the buoyancy of float in liquid is equal to the volume of liquid displaced, when liquid level changes, the liquid level height is reflected by the up and down movement of float, so as to realize the measurement of liquid level.

[0003] Balanced float liquid level meter is to connect a balanced force, such as counterweight or spring, outside the container with the float inside the container by pulley and pull rope. When the float moves up and down with the liquid surface, it drives the pull rope, pulley or counterweight or spring to move together, and the displacement or rotation in this movement is detected to read the liquid level outside the container. In the daily production of petroleum industry, in order to facilitate the movement of pull rope, the pull rope is designed to be open at the top of the big tank, which causes the escape of hydrocarbon gas in the tank, which does not meet the relevant sealing requirements in the management of oil and gas development engineering in petroleum industry, not only causes environmental pollution, but also reduces the enterprise benefit.

[0004] Publication No. CN221146028U discloses a submerged force transmission device, which comprises a first storage tank, a support for supporting a steering device is arranged at the top of the first storage tank, a sealing assembly for sealing the first storage tank is arranged at the top of the first storage tank, the sealing assembly comprises a sealing pipe, a second storage tank for closing the port of the sealing pipe is arranged at one end of the sealing pipe and at the top of the first storage tank, a support rod is arranged on the inner wall of the sealing pipe, and a fixing frame is arranged at the bottom of the support rod.

[0005] The patent with the publication number CN112414513A discloses a heavy hammer type buoy liquid level meter, which comprises a buoy, a steel wire rope traction mechanism, a guide pipe, a heavy hammer pointer, and a liquid level meter scale.

[0006] The patent with the publication number CN212196895U discloses an oil tank mechanical liquid level meter sealing device, which comprises a sealing device.

[0007] The above-mentioned prior art does not disclose the U-shaped pipe group structure provided with the first U-shaped pipe and the second U-shaped pipe. Practical new type content

[0008] In view of the above-mentioned defects existing in the prior art, the purpose of the present application is to provide a large tank float liquid level meter sealing device.

[0009] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0010] A large tank float liquid level meter sealing device comprises a wire rope pulley block and a U-shaped pipe group, wherein the wire rope pulley block is arranged in the U-shaped pipe group.

[0011] Further, the first U-shaped pipe comprises a first vertical pipe, a first horizontal pipe, and a second vertical pipe connected in sequence.

[0012] Specifically, the second U-shaped pipe comprises a second vertical pipe, a second horizontal pipe, and a third vertical pipe connected in sequence.

[0013] Further, the first vertical pipe, the second vertical pipe, and the third vertical pipe are parallel to the axis.

[0014] Specifically, the first cross pipe and the second cross pipe are parallel to the axis.

[0015] Further, the first vertical pipe, the first cross pipe, the second vertical pipe, the second cross pipe and the third vertical pipe are connected in sequence by elbows, and the upper end of the third vertical pipe is provided with an elbow.

[0016] Further, the second vertical pipe is provided with a liquid level control overflow port, and the liquid level control overflow port is installed with an overflow valve.

[0017] Specifically, the third vertical pipe is provided with a sealing liquid injection port, and the sealing liquid injection port is installed with a sealing liquid injection valve.

[0018] Further, the wire rope pulley block includes a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley and a fifth fixed pulley.

[0019] Specifically, the first fixed pulley is arranged at the connection between the first vertical pipe and the first cross pipe.

[0020] Specifically, the second fixed pulley is arranged at the connection between the first cross pipe and the second vertical pipe.

[0021] Specifically, the third fixed pulley is arranged at the connection between the second vertical pipe and the second cross pipe.

[0022] Specifically, the fourth fixed pulley is arranged at the connection between the second cross pipe and the third vertical pipe.

[0023] Specifically, the fifth fixed pulley is arranged at the elbow at the upper end of the third vertical pipe.

[0024] Further, it further includes a third cross pipe, which is connected with the elbow at the upper end of the third vertical pipe, and the tail end of the third cross pipe is provided with a downward elbow, and the elbow of the third cross pipe is provided with a sixth fixed pulley.

[0025] Further, the axes of the first cross pipe and the third cross pipe are collinear or parallel.

[0026] Further, the axes of the first fixed pulley, the second fixed pulley, the third fixed pulley, the fourth fixed pulley and the fifth fixed pulley are located on the extension of the corresponding vertical pipe wall or the extension of the vertical pipe axis.

[0027] Specifically, the axis of the sixth fixed pulley is located just above the inside of the elbow of the third cross pipe or on the vertical axis of the elbow of the third cross pipe.

[0028] Further, the axes of the first fixed pulley, the second fixed pulley, the third fixed pulley, the fourth fixed pulley, the fifth fixed pulley and the sixth fixed pulley are located on the extension of the corresponding cross pipe wall or the extension of the cross pipe axis.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] 1. The utility model discloses a rope sealing of float liquid level meter can be applied to prevent the gas of big jar top filling place from escaping, through setting up the U -shaped tube at the jar top, the float liquid level meter rope passes through from the inside of U -shaped tube, adopts the liquid seal in the U -shaped tube to realize the sealed method, prevents the gas of jar from escaping, avoids the environmental pollution problem.

[0031] 2. The utility model installs and tries in some 5 gathering and transferring station 3# jar (secondary overflow jar), and through professional detection, the hydrocarbon gas concentration reduces to 7.3ppm (background value is 6.3) from 16572ppm before installation, far lower than the discharge index, and the sealing device can effectively isolate the gas from escaping. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structure schematic diagram of big jar float liquid level meter sealing device of the utility model,

[0033] Figure 2 It is the structure schematic diagram of embodiment 3 of the utility model,

[0034] Figure 3 It is the structure schematic diagram of embodiment 4 of the utility model,

[0035] Figure 4 It is the structure schematic diagram of embodiment 5 of the utility model.

[0036] In the drawing: 1 first vertical pipe;2 second vertical pipe;3 third vertical pipe;4 first cross pipe;5 second cross pipe;6 third cross pipe;7 first fixed pulley;8 second fixed pulley;9 third fixed pulley;10 fourth fixed pulley;11 fifth fixed pulley;12 sixth fixed pulley;13 sealing liquid injection port;14 liquid level control overflow port;15 sealing liquid;16 rope;17 big jar. DETAILED DESCRIPTION

[0037] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0038] Embodiment 1:

[0039] Please refer to Figure 1The embodiment provides a large tank float liquid level meter sealing device, which comprises a U-shaped tube group, a wire supporting pulley group is arranged in the U-shaped tube group, the U-shaped tube group is filled with sealing liquid 15, one end of the U-shaped tube group is used for being connected with a detection port of a large tank 17, and the wire supporting pulley group is used for supporting a pull rope 16 of a balanced float liquid level meter.

[0040] Further, the U-shaped tube group comprises a first U-shaped tube and a second U-shaped tube, the first U-shaped tube and the second U-shaped tube are connected in a tail-to-head mode, the U-shaped port of the first U-shaped tube faces downward, the U-shaped port of the second U-shaped tube faces upward, and the open end of the first U-shaped tube is used for being connected with the detection port of the large tank 17.

[0041] Specifically, the first U-shaped tube comprises a first vertical pipe 1, a first horizontal pipe 4 and a second vertical pipe 2 which are sequentially connected, and the second U-shaped tube comprises a second vertical pipe 2, a second horizontal pipe 5 and a third vertical pipe 3 which are sequentially connected.

[0042] Specifically, the bottom end of the first vertical pipe 1 is connected with the top of the large tank 17 through flange sealing or screw sealing, and the first vertical pipe 1, the first horizontal pipe 4, the second vertical pipe 2, the second horizontal pipe 5 and the third vertical pipe 3 are sequentially connected through elbow screw sealing.

[0043] Specifically, the axis of the first vertical pipe 1, the second vertical pipe 2 and the third vertical pipe 3 is parallel, and the axis of the first horizontal pipe 4 and the second horizontal pipe 5 is parallel.

[0044] Specifically, the first vertical pipe 1, the first horizontal pipe 4, the second vertical pipe 2, the second horizontal pipe 5 and the third vertical pipe 3 are all made of stainless steel.

[0045] Further, the second vertical pipe 2 is provided with a liquid level control overflow port 14, and an overflow valve is arranged on the liquid level control overflow port 14; and the third vertical pipe 3 is provided with a sealing liquid injection port 13, and a sealing liquid injection valve is arranged on the sealing liquid injection port 13.

[0046] Preferably, the sealing liquid 15 is selected from oil products with high boiling point, low condensation point and high density, such as hydraulic oil and transformer oil.

[0047] Further, the wire pulley block comprises a first fixed pulley 7, a second fixed pulley 8, a third fixed pulley 9, a fourth fixed pulley 10, and a fifth fixed pulley 11. The first fixed pulley 7 is arranged at the connection between the first vertical pipe 1 and the first horizontal pipe 4. The second fixed pulley 8 is arranged at the connection between the first horizontal pipe 4 and the second vertical pipe 2. The third fixed pulley 9 is arranged at the connection between the second vertical pipe 2 and the second horizontal pipe 5. The fourth fixed pulley 10 is arranged at the connection between the second horizontal pipe 5 and the third vertical pipe 3. The fifth fixed pulley 11 is arranged at the elbow above the third vertical pipe 3. The pull rope 16 is arranged above the first fixed pulley 7, above the second fixed pulley 8, below the third fixed pulley 9, below the fourth fixed pulley 10, and above the fifth fixed pulley 11 in sequence from the large tank 17 detection port. When the pull rope 16 is taut between two adjacent fixed pulleys, a gap exists between the pull rope 16 and the inner walls of the first horizontal pipe 4, the second horizontal pipe 5, the first vertical pipe 1, the second vertical pipe 2, and the third vertical pipe 3, and no friction is generated.

[0048] Specifically, the first fixed pulley 7, the second fixed pulley 8, the third fixed pulley 9, the fourth fixed pulley 10, and the fifth fixed pulley 11 are connected to the pipe wall of the U-shaped pipe group through a fixed shaft.

[0049] Specifically, the first fixed pulley 7, the second fixed pulley 8, the third fixed pulley 9, the fourth fixed pulley 10, and the fifth fixed pulley 11 are pulleys provided with a U-shaped ring groove.

[0050] Specifically, the fixed shaft of the first fixed pulley 7, the second fixed pulley 8, the third fixed pulley 9, the fourth fixed pulley 10, and the fifth fixed pulley 11 is located on the extension plane of the corresponding vertical pipe wall.

[0051] Embodiment 2:

[0052] Based on Embodiment 1, a third horizontal pipe 6 is additionally arranged to enable the pull rope 16 to be vertically downward after being led out of the U-shaped pipe group.

[0053] The third horizontal pipe 6 is sealingly connected to the elbow thread at the upper end of the third vertical pipe 3. The tail end of the third horizontal pipe 6 is provided with a downward elbow. The elbow of the third horizontal pipe 6 is provided with a sixth fixed pulley 12. The pull rope 16 is arranged above the sixth fixed pulley 12 and then vertically downward to be connected to the external equipment of the balanced float liquid level meter.

[0054] Specifically, the axes of the first horizontal pipe 4 and the third horizontal pipe 6 are collinear or parallel.

[0055] Specifically, the fixed shaft of the sixth fixed pulley 12 is located directly above the inner side of the elbow of the third horizontal pipe 6.

[0056] It should be noted that the balance type float liquid level meter itself is prior art, the utility model is used for sealing setting of its pull rope 16, does not involve the tank outside part, tank inside part of balance type float liquid level meter, so does not provide the corresponding drawing, and their structure is clear to those skilled in the art.

[0057] Embodiment 3:

[0058] On the basis of embodiment 2, the embodiment of the application comprises Figure 2 As shown in the figure, the first vertical pipe 1, the first horizontal pipe 4, the second vertical pipe 2, the second horizontal pipe 5, the third vertical pipe 3, and the third horizontal pipe 6 are connected in a head-to-tail manner through bend flange sealing or through bend welding.

[0059] The fixed shafts of the first fixed pulley 7, the second fixed pulley 8, the third fixed pulley 9, the fourth fixed pulley 10, and the fifth fixed pulley 11 are located on the extension lines of the corresponding vertical pipe axes, and the fixed shaft of the sixth fixed pulley 12 is located on the vertical axis of the bend of the third horizontal pipe 6.

[0060] Embodiment 4:

[0061] On the basis of embodiment 2, the embodiment of the application comprises Figure 3 As shown in the figure, the fixed shafts of the first fixed pulley 7, the second fixed pulley 8, the third fixed pulley 9, the fourth fixed pulley 10, the fifth fixed pulley 11, and the sixth fixed pulley 12 are located on the extension planes of the corresponding horizontal pipe walls.

[0062] Embodiment 5:

[0063] On the basis of embodiment 2, the embodiment of the application comprises Figure 4 As shown in the figure, the fixed shafts of the first fixed pulley 7, the second fixed pulley 8, the third fixed pulley 9, the fourth fixed pulley 10, the fifth fixed pulley 11, and the sixth fixed pulley 12 are located on the extension lines of the corresponding horizontal pipe axes.

[0064] In the present application, the parts that are not discussed in detail, the connection modes of the parts in the present application all belong to the known technology in the technical field. Direct application can be used, and no further description is given.

[0065] In the present application, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense. For example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the description of the utility model, it is understood that the terms "upper", "lower", "left", "right", "front", "rear" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0067] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and the utility model can have various changes and changes for those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tank float level gauge sealing device comprising a catenary pulley block, characterised in that, Further comprising a U-shaped tube group, a wire supporting pulley group is arranged in the U-shaped tube group; The U-shaped tube group comprises a first U-shaped tube and a second U-shaped tube which are connected in a head-tail manner; The first U-shaped tube has a downward U-shaped opening, and the second U-shaped tube has an upward U-shaped opening; the opening end of the first U-shaped tube is used to connect a detection port of a large tank, and the second U-shaped tube is filled with sealing liquid.

2. A tank float level gauge sealing device according to claim 1, characterized in that The first U-shaped tube comprises a first vertical tube, a first horizontal tube and a second vertical tube which are connected in sequence; The second U-shaped tube comprises a second vertical tube, a second horizontal tube and a third vertical tube which are connected in sequence.

3. A tank float level gauge sealing device according to claim 2, characterised in that, The axes of the first vertical tube, the second vertical tube and the third vertical tube are parallel. The axes of the first horizontal tube and the second horizontal tube are parallel.

4. A tank float level gauge sealing device according to claim 2, characterized in that, The first vertical tube, the first horizontal tube, the second vertical tube, the second horizontal tube and the third vertical tube are connected in sequence through elbows, and an elbow is arranged at the upper end of the third vertical tube.

5. A tank float level gauge sealing device according to claim 2, characterized in that, The second vertical tube is provided with a liquid level control overflow port, and an overflow valve is arranged on the liquid level control overflow port; The third vertical tube is provided with a sealing liquid injection port, and a sealing liquid injection valve is arranged on the sealing liquid injection port.

6. A tank float level gauge sealing device according to claim 4, wherein The wire supporting pulley group comprises a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley and a fifth fixed pulley; The first fixed pulley is arranged at the connection between the first vertical tube and the first horizontal tube; The second fixed pulley is arranged at the connection between the first horizontal tube and the second vertical tube; The third fixed pulley is arranged at the connection between the second vertical tube and the second horizontal tube; The fourth fixed pulley is arranged at the connection between the second horizontal tube and the third vertical tube; The fifth fixed pulley is arranged at the elbow at the upper end of the third vertical tube.

7. A tank float level gauge sealing device according to claim 6, characterised in that, Further comprising a third horizontal tube, which is connected with the elbow at the upper end of the third vertical tube, and a downward elbow is arranged at the tail end of the third horizontal tube; the elbow of the third horizontal tube is provided with a sixth fixed pulley.

8. A tank float level gauge sealing device according to claim 7, characterised in that, The axes of the first horizontal tube and the third horizontal tube are collinear or parallel.

9. A tank float level gauge sealing device according to claim 7, characterized in that The axes of the first fixed pulley, the second fixed pulley, the third fixed pulley, the fourth fixed pulley and the fifth fixed pulley are located on the extension of the corresponding vertical tube wall or the extension line of the vertical tube axis; The axis of the sixth fixed pulley is located just above the inside of the elbow of the third horizontal tube or on the vertical axis of the elbow of the third horizontal tube.

10. A tank float level gauge sealing device according to claim 7, characterized in that The axes of the first fixed pulley, the second fixed pulley, the third fixed pulley, the fourth fixed pulley, the fifth fixed pulley and the sixth fixed pulley are located on the extension of the corresponding horizontal tube wall or the extension line of the horizontal tube axis.

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