CN211600250U

CN211600250U - Protection device of LNG pipeline monitoring instrument

Info

Publication number: CN211600250U
Application number: CN201922484146.9U
Authority: CN
Inventors: 冉小清; 付涛; 杨芳; 张小红
Original assignee: China Natural Gas Guangyuan Co ltd
Current assignee: China Natural Gas Guangyuan Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-29
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a protecting device of an LNG pipeline monitoring instrument, which comprises a base, wherein the base is in a hollow cuboid shape, the top surface is closed, and the bottom surface is open; u-shaped clamping grooves are formed in two opposite sides of the base along the direction of the LNG pipeline; the top surface of the base is provided with a through hole for the monitoring instrument to pass through; in the direction perpendicular to the LNG pipeline, clamping mechanisms are arranged on the lower portions of the two sides of the base in a mirror image mode; rubber plates are further arranged at the upper position and the lower position of the clamping mechanism, one side of each rubber plate is connected with the inner wall of the base where the clamping mechanism is located, and the rest sides of each rubber plate are in contact sealing with the inner wall of the base and the LNG pipeline; and the protection cavity is connected with the flange at the top of the base and covers the monitoring instrument into the protection cavity. The utility model provides a LNG pipeline monitoring instrument's protection device goes into the protection intracavity portion with the monitor table cover on the LNG pipeline to reduce environmental factor and to monitoring instrument's influence, prolong monitoring instrument's life, ensure the ware and detect the precision.

Description

Protection device of LNG pipeline monitoring instrument

Technical Field

The utility model relates to a natural gas line auxiliary device especially relates to a LNG pipeline monitoring instrument's protection device.

Background

In the LNG production process, in order to monitor the pressure, temperature, flow rate, etc. of the fluid from the pipeline, a large number of monitors, such as pressure gauges, flow meters, etc., are installed on the pipeline. However, the usage environment of the monitoring instrument is complicated and changeable, and the monitoring instrument is directly exposed to the environment, is easily exposed to rain, is easily corroded for a long time, affects the performance of the monitoring instrument, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the problem that prior art exists, provide a protection device of LNG pipeline monitoring instrument, go into the protection intracavity portion with the monitor table cover on the LNG pipeline to reduce environmental factor and to monitoring instrument's influence, prolong monitoring instrument's life, ensure ware detection accuracy.

The utility model adopts the technical proposal that:

protection device of LNG pipeline monitoring instrument includes

The base is arranged on the LNG pipeline; the base is in a hollow cuboid shape, the top surface is closed, and the bottom surface is open; the two opposite sides of the base are provided with U-shaped clamping grooves along the direction of the LNG pipeline, the openings of the clamping grooves face downwards, the width of each clamping groove is consistent with the diameter of the LNG pipeline, and the depth of each clamping groove is larger than the radius of the LNG pipeline; the top surface of the base is provided with a through hole for the monitoring instrument to pass through; in the direction perpendicular to the LNG pipeline, the lower parts of the two sides of the base are provided with clamping mechanisms in a mirror image mode, and the included angle alpha between the two clamping mechanisms in the central direction is smaller than or equal to 180 degrees; rubber plates are further arranged at the upper position and the lower position of the clamping mechanism, one side of each rubber plate is connected with the inner wall of the base where the clamping mechanism is located, and the rest sides of each rubber plate are in contact sealing with the inner wall of the base and the LNG pipeline;

and the protection cavity is connected with the flange at the top of the base and covers the monitoring instrument into the protection cavity.

Furthermore, a rubber layer is attached to the inner wall of the clamping groove.

Further, the clamping mechanism comprises a clamping block, a screw rod and a hand wheel, the screw rod penetrates through the side wall of the base and is in threaded connection with the side wall of the base, the clamping block is located on the inner side of the base and is movably connected with one end of the screw rod, and the hand wheel is connected with the other end of the screw rod.

Further, the buffer pad is installed towards LNG pipeline side one side to the fixture block.

Furthermore, a metal net cage is arranged on the inner side of the protection cavity and is provided with a grounding point.

Furthermore, the upper part of the side wall of one side of the protection cavity is cut off to form a triangular prism-shaped observation area, and an end-capping coaming plate is arranged, and when the end-capping coaming plate seals the observation area, the end-capping coaming plate and the rest part of the protection cavity are encircled to form a complete cuboid structure.

Furthermore, along the direction perpendicular to the LNG pipeline, plug-in units are arranged on the side walls of the protection cavities corresponding to the two sides of the observation area, and plug pins are arranged on the two sides of the corresponding end-sealing enclosing plate and are inserted into the plug-in units so that the end-sealing enclosing plate is fixed to the observation area.

Furthermore, matched steps are arranged at the end-sealing enclosing plate and the positions corresponding to the contact positions of the end-sealing enclosing plate and the protection cavity.

The utility model has the advantages that:

the utility model discloses a solve the problem that exists to the monitoring instrument lack the protection on the LNG pipeline in the current, designed a LNG pipeline monitoring instrument's protection device, protection device includes base and protection chamber. The protection chamber is installed on the base to cover the monitor table on the LNG pipeline into the protection intracavity portion, thereby reduce the influence of environmental factor to monitoring instrument, prolong monitoring instrument's life, ensure the ware and detect the precision.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is the utility model discloses in the embodiment, LNG pipeline monitoring instrument's protection device's schematic structure diagram.

Fig. 2 is the embodiment of the present invention discloses a schematic diagram of an exploded structure of a protection device of an LNG pipeline monitoring instrument.

Fig. 3 is the embodiment of the present invention, in which a schematic view of a mounting structure of a protection device of an LNG pipeline monitoring instrument is shown.

Fig. 4 is the embodiment of the present invention, showing a schematic view of a mounting structure of a protection device of an LNG pipeline monitoring instrument.

3 fig. 3 5 3 is 3 a 3 schematic 3 sectional 3 view 3 along 3 the 3 direction 3 of 3 a 3- 3 a 3 in 3 fig. 34 3. 3

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention.

Embodiments of the present invention/utility model will be described in detail below with reference to the drawings.

In the embodiment, the protecting device of the LNG pipeline monitoring instrument is structurally shown in attached figures 1-5. The protection device comprises a base 1 and a protection cavity 2. Protection chamber 2 is installed on base 1 to inside covering protection chamber 2 with monitoring instrument 200 on the LNG pipeline 100, thereby reducing the influence of environmental factor to monitoring instrument 200, extension monitoring instrument 200's life ensures the ware and detects the precision.

Specifically, the base 1 is in the shape of a hollow cuboid, the top surface is closed, and the bottom surface is open. Along the LNG pipeline 100 direction, the base 1 opposite both sides are seted up the draw-in groove 11 of U. The opening of the clamping groove 11 faces downwards, the groove width is consistent with the diameter of the LNG pipeline 100, and the groove depth is larger than the radius of the LNG pipeline 100. The top surface of the base 1 is provided with a through hole 12 for the monitoring instrument 200 to pass through. When the base 1 is installed on the LNG pipeline 100, the monitoring instrument 200 passes through the through hole 12, and the arc-shaped inner wall portion of the clamping groove 11 is in contact with the LNG pipeline 100 to form a structural seal.

In order to improve the contact sealing performance of the clamping groove 11 and the LNG pipeline, a rubber layer (not shown) may be attached to the inner wall of the clamping groove 11.

In order to stably fix the base 1 on the LNG pipeline 100, the latching mechanisms 13 are arranged on the lower portions of the two sides of the base 1 in a mirror image manner in a direction perpendicular to the LNG pipeline 100, and an included angle α between the two latching mechanisms 13 in the central direction is less than or equal to 180 °.

The holding mechanism 13 includes a block 131, a screw 132 and a hand wheel 133, the screw 132 passes through the sidewall of the base 1 and is in threaded connection with the sidewall, the block 131 is located inside the base 1 and is movably connected with one end of the screw 132, and the hand wheel 133 is connected with the other end of the screw 132. Rotating the screw 132 can make the blocks 131 approach the LNG pipeline 100, and the two blocks 131 abut against the LNG pipeline 100 to fix the base 1 to the LNG pipeline 100. In order to prevent the fixture block 131 from crushing the LNG line 100, a flexible buffer pad 134 is mounted on the fixture block 131 toward the LNG line 100. Rubber plates 14 are further arranged at the upper position and the lower position of the clamping mechanism 13, one side of each rubber plate 14 is connected with the inner wall of the base 1 where the clamping mechanism 13 is located, and the other sides of each rubber plate 14 are in contact sealing with the inner wall of the base 1 and the LNG pipeline, so that a gap between the base 1 and the LNG pipeline 100 is sealed, and dust, water vapor and the like are reduced.

And the protection cavity 2 is connected with the top flange of the base 1. The protection cavity 2 is in a hollow cuboid shape, the top is closed, and the bottom is open. When the base 1 is installed on the LNG pipeline 100, the monitoring instrument 200 is covered by the protection chamber 2 through the through hole 12 to reduce the influence of environmental factors on the monitoring instrument 2.

In order to reduce electromagnetic interference, a metal mesh cage (not shown) is provided inside the protection chamber 2, and a grounding point is provided. Electromagnetic interference to the monitoring instrument 200 is reduced through the shielding effect of the metal mesh cage.

In order to facilitate the inspection of the monitor instrument 200, the upper portion of one side wall of the protection chamber 2 is cut off to form a triangular prism-shaped observation region 21, and a closed-end enclosure 22 is provided. When the end-capping baffle 22 closes the observation area 21, it surrounds the rest of the protection cavity 2 to form a complete cuboid structure.

In order to ensure the connection reliability of the end-capping enclosing plate 22 and the protection cavity 2, along the direction perpendicular to the LNG pipeline 100, plug-in units 23 are arranged on the two sides of the observation area 21 corresponding to the side walls of the protection cavity 2, and plug pins 24 are arranged on the two sides of the corresponding end-capping enclosing plate 22, and the plug pins 24 are inserted into the plug-in units 23, so that the end-capping enclosing plate 22 is fixed to the observation area 21.

In order to improve the sealing shape of the end-capping baffle 22 and the protection cavity 2, a matching step 25 is arranged at the end-capping baffle 22 and the corresponding contact position with the protection cavity 2.

In this embodiment, when the protection device for the LNG pipeline monitoring instrument is installed, the base 1 is installed first, and after the position is adjusted, the hand wheel 133 is screwed to make the fixture block 131 abut against the LNG pipeline 100, and then the protection cavity 2 is installed. When the monitoring instrument 200 needs to be observed, the end-sealed enclosing plate 22 is taken down and can be viewed through the observation area 21.

Claims

1. The utility model provides a protection device of LNG pipeline monitoring instrument which characterized in that: comprises that

The base is arranged on the LNG pipeline; the base is in a hollow cuboid shape, the top surface is closed, and the bottom surface is open; the two opposite sides of the base are provided with U-shaped clamping grooves along the direction of the LNG pipeline, the openings of the clamping grooves face downwards, the width of each clamping groove is consistent with the diameter of the LNG pipeline, and the depth of each clamping groove is larger than the radius of the LNG pipeline;

the top surface of the base is provided with a through hole for the monitoring instrument to pass through; in the direction perpendicular to the LNG pipeline, the lower parts of the two sides of the base are provided with clamping mechanisms in a mirror image mode, and the included angle alpha between the two clamping mechanisms in the central direction is smaller than or equal to 180 degrees; rubber plates are further arranged at the upper position and the lower position of the clamping mechanism, one side of each rubber plate is connected with the inner wall of the base where the clamping mechanism is located, and the rest sides of each rubber plate are in contact sealing with the inner wall of the base and the LNG pipeline;

2. The LNG pipeline monitor protection device of claim 1, wherein: and a rubber layer is attached to the inner wall of the clamping groove.

3. The protection device of the LNG pipeline monitoring instrument according to claim 1 or 2, characterized in that: the clamping mechanism comprises a clamping block, a screw rod and a hand wheel, the screw rod penetrates through the side wall of the base and is in threaded connection with the side wall of the base, the clamping block is located on the inner side of the base and is movably connected with one end of the screw rod, and the hand wheel is connected with the other end of the screw rod.

4. The LNG pipeline monitor protection device of claim 3, wherein: the fixture block is installed the blotter towards LNG pipeline side one side.

5. The protection device of an LNG pipeline monitoring instrument according to claim 1, 2 or 4, characterized in that: and a metal mesh cage is arranged on the inner side of the protection cavity and is provided with a grounding point.

6. The protection device of an LNG pipeline monitoring instrument according to claim 1, 2 or 4, characterized in that: the upper part of the side wall of one side of the protection cavity is cut off to form a triangular prism-shaped observation area, and an end-capping coaming plate is arranged, and when the end-capping coaming plate seals the observation area, the end-capping coaming plate and the rest of the protection cavity are encircled to form a complete cuboid structure.

7. The LNG pipeline monitor protection device of claim 6, wherein: along the direction of perpendicular to LNG pipeline be provided with the plug-in components on the protection cavity lateral wall that the observation area both sides correspond, be in the correspondence end capping bounding wall both sides are equipped with the bolt, the bolt inserts make in the plug-in components the end capping bounding wall is fixed in observation area department.

8. The LNG pipeline monitor protection device of claim 6, wherein: and the end-sealing coaming and the corresponding contact position with the protection cavity are provided with matched steps.