CN218724851U

CN218724851U - Temperature monitoring device and buried pipeline

Info

Publication number: CN218724851U
Application number: CN202222991776.7U
Authority: CN
Inventors: 杨东婷; 彭国平; 赵伟; 姜蒙
Original assignee: Spang Technology Co ltd
Current assignee: Spang Technology Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-24
Anticipated expiration: 2032-11-10

Abstract

The utility model relates to the technical field of pipeline laying, in particular to a temperature monitoring device, which comprises an outer extension pipe, a sleeve pipe and a temperature measuring part, wherein two ends of the outer extension pipe are opened, a first end of the outer extension pipe can be communicated with a pipeline main body, and a second end of the outer extension pipe can penetrate out of the ground; one end of the sleeve is open, the other end of the sleeve is closed, the closed end of the sleeve is inserted into the outer extension pipe, the open end of the sleeve is hermetically connected with the second end of the outer extension pipe, and an extension area communicated with the pipeline main body is formed between the sleeve and the outer extension pipe; the temperature measuring piece is inserted in the sleeve, so that the temperature of the medium in the pipeline main body can be measured, the installation is simple, and the normal circulation of the medium in the pipeline main body is not influenced when the temperature measuring piece is overhauled; still relate to a buried pipeline, including above-mentioned temperature monitoring device, the temperature monitoring result is accurate, construction convenience.

Description

Temperature monitoring device and buried pipeline

Technical Field

The utility model relates to a pipe laying technical field especially relates to a temperature monitoring device and buried pipeline.

Background

For the petrochemical field, the pipeline is directly buried in soil, so that a large amount of earthwork and groove building can be reduced, and the pipeline is the most economic laying mode. In order to monitor the fluid state in the buried pipeline, the buried pipeline is often required to be monitored in real time.

At present, the methods for monitoring the temperature of the buried pipeline mainly comprise two methods: the other method is to install the temperature measuring element in the valve well and adopt the mode of installing the instrument in the well. The first mode is convenient to install and maintain, but the flow state of the fluid is changed due to the addition of the structures such as the elbow, the bent pipe and the like, so that the measurement precision is reduced, and meanwhile, the existence of the elbow and the bent pipe can increase the stress of the pipeline and cause certain potential safety hazard to the pipeline; the second mode can ensure the measurement accuracy, but combustible gas is very easy to accumulate in the valve well, the valve well is very unsafe, water is easy to accumulate in the valve well, the drainage difficulty is caused, and meanwhile, the construction cost and the maintenance cost are both high. Therefore, a temperature measuring device with high safety, simple installation and convenient later maintenance is needed urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature monitoring device for the temperature of medium in the monitoring buried pipeline, the construction is simple, overhaul convenient and measurement accuracy is high.

To achieve the purpose, the utility model adopts the following technical proposal:

the temperature monitoring device comprises an outer extending pipe, a sleeve and a temperature measuring piece, wherein two ends of the outer extending pipe are opened, a first end of the outer extending pipe can be communicated with the pipeline main body, and a second end of the outer extending pipe can penetrate out of the ground; one end of the sleeve is open, the other end of the sleeve is closed, the closed end of the sleeve is inserted into the outer extension pipe, the open end of the sleeve is connected with the second end of the outer extension pipe in a sealing mode, and an extension area communicated with the pipeline main body is formed between the sleeve and the outer extension pipe; the temperature measuring piece is inserted in the sleeve.

Optionally, the outer pipe is flanged to the casing.

Optionally, the temperature measuring part is detachably connected with the sleeve.

Optionally, the thermometric element is threadably engaged with the sleeve.

Optionally, the closed end of the sleeve is inserted into the pipe main body, and the temperature measuring part abuts against the closed end of the sleeve.

Optionally, the buried depth of the pipeline main body is L, the radius of the pipeline main body is R, the preset height of the outer extension pipe extending out of the ground is H, the length of the outer extension pipe is L + H, and the length of the sleeve is 1/2R + L + H.

Optionally, the temperature measuring part is an integrated temperature transmitter, and the integrated temperature transmitter is connected with the control system through a temperature signal cable.

Optionally, an explosion-proof flexible pipe is arranged on the temperature signal cable.

Another object of the utility model is to provide a buried pipeline, including pipeline main part and above-mentioned temperature monitoring device, temperature monitoring device the outer extension with pipeline main part welded connection.

Optionally, the buried pipeline comprises a valve well, the valve well being deployed within 2m of the temperature monitoring device.

The utility model has the advantages that: the utility model provides a temperature monitoring device installs the outrigger that communicates with buried pipeline main part additional outside buried pipeline main part, can install temperature measurement spare in the outrigger to the medium in the pipeline main part carry out the temperature measurement, utilize the sleeve pipe that inserts the outrigger to seal the outrigger simultaneously, insert temperature measurement spare in the sleeve pipe with medium indirect contact, then when temperature measurement spare overhauls or changes, the position that the pipeline main part set up the outrigger can not produce the leakage, solved the on-the-spot problem of changing the table and overhauing the difficulty; the utility model provides a buried pipeline utilizes above-mentioned temperature monitoring device can realize the accurate measurement to medium temperature in the pipeline main part, and the construction is simple.

Drawings

Fig. 1 is a schematic structural diagram of a buried pipeline proposed in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a temperature monitoring device according to an embodiment of the present invention.

In the figure: 1. an outer extension tube; 2. a sleeve; 3. a temperature measuring part; 4. a temperature signal cable; 5. an explosion-proof flexible pipe; 6. a pipe body; 7. a valve well.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The embodiment provides a temperature monitoring device, which is mainly applied to the field of pipeline laying and used for detecting the temperature of a medium in a buried pipeline. For example for monitoring the temperature of a medium in a petrochemical pipeline or a water supply and drainage pipeline in order to determine whether the state of the medium inside the pipeline is stable. In the temperature monitoring device in this embodiment, the installation position of the temperature measuring member is set above the ground, and the temperature measuring probe of the temperature measuring member can measure the temperature of the medium flowing in the pipeline.

Referring to fig. 1-2, the temperature monitoring device in this embodiment includes a temperature measuring element 3, an outer pipe 1 and a sleeve 2, where the outer pipe 1 is a tubular structure with two open ends, and may be a circular tubular structure, a first end of the outer pipe 1 may be communicated with a pipeline, and a second end may penetrate through the ground, and generally speaking, the pipeline is laid horizontally, and the outer pipe 1 may be set to be perpendicular to the pipeline to penetrate through the soil layer quickly. The sleeve 2 is a tubular structure with an opening at one end, specifically, the sleeve can also be a circular tubular structure, the closed end of the sleeve 2 is inserted into the outer extension tube 1 and is hermetically connected with the outer extension tube 1, an extension area communicated with a pipeline is formed between the sleeve 2 and the outer extension tube 1, and a measuring rod of the temperature measuring piece 3 is inserted into the sleeve 2 to measure the temperature of a medium.

Buried pipeline temperature monitoring device in this embodiment will stretch out the outer pipe 1 and the buried pipeline intercommunication on ground, and insert sleeve pipe 2 in outer pipe 1, form the extension district between sleeve pipe 2 and the outer pipe 1, the medium in the pipeline can flow the extension district, insert the temperature of monitoring medium in the sleeve pipe 2 with the measuring staff of temperature measurement piece 3, only need during the maintenance with temperature measurement piece 3 follow sleeve pipe 2 in extract can, need not to close the pipeline, and conveniently patrol checking of personnel, guarantee temperature signal transmission's reliability, measurement accuracy is high.

During specific construction, the outer extension pipe 1 is constructed together with the pipeline, and the outer extension pipe 1 and the pipeline can be connected in a welding mode. The outer pipe 1 and the sleeve 2 can be integrally formed, that is, the outer pipe 1 and the sleeve 2 form a structure with a concave axial section, and can also be connected in a split manner. In this embodiment, the outer pipe 1 and the sleeve 2 are in a split structure based on different requirements for the materials of the outer pipe 1 and the sleeve 2. Specifically, the outer extension pipe 1 and the sleeve 2 are connected by a flange. The second end of the outer extension pipe 1 and the opening end of the sleeve 2 are both provided with flanges, and after the sleeve 2 is inserted into the outer extension pipe 1, the flanges at the opening end are connected with the flanges of the outer extension pipe 1 through bolts. In order to ensure the sealing performance and prevent the medium from flowing out, flange gaskets are arranged between the flange plates.

It will be appreciated that the casing 2 is made of a material having good heat transfer properties and corrosion resistance to ensure measurement accuracy, for example 316 stainless steel. The extension pipe 1 can then be made of the same material as the tubing, for example 304 stainless steel.

Meanwhile, in order to ensure the stability of the temperature measuring piece 3 in the sleeve 2, the temperature measuring piece 3 is detachably connected with the sleeve 2, and the specific connection mode can be a screw joint. For example, the open end of the sleeve 2 is provided with internal threads, the measuring rod of the temperature measuring part 3 is provided with a joint with external threads, and the joint can be screwed into the sleeve 2, so that the measuring rod of the temperature measuring part 3 is fixedly connected with the sleeve 2.

Furthermore, the medium in the extension area is easily influenced by the external environment (soil layer, air, etc.) from the first end to the second end of the outer extension pipe 1, and temperature change is generated. For further improving the measurement accuracy of the temperature measurement piece 3, the closed end of the sleeve 2 is inserted into the pipeline, the length of the measuring rod of the temperature measurement piece 3 is greater than that of the sleeve 2, and the measuring head end of the measuring rod can be abutted against the closed end of the sleeve 2. For example, if the soil covering depth of the pipeline main body 6 is L, the radius of the pipeline main body 6 is R, and the preset height of the extension pipe 1 (the sleeve 2) extending out of the ground is H, the length of the extension pipe 1 can be set to L + H, and the length of the sleeve 2 can be set to 1/2r + L + H; at this time, the sleeve 2 can extend into the center of the pipeline main body 6, and the temperature measuring probe of the temperature measuring element located in the sleeve 2 is also inserted into the bottom of the sleeve 2 to monitor the temperature of the center of the pipeline main body 6. Specifically, the earthing depth of the pipeline main body 6 and the radius of the pipeline main body 6 can be adjusted according to construction conditions, the preset height of the extension pipe 1 (the sleeve 2) extending out of the ground can be 200mm, the thermodetector can be conveniently checked at the moment, and the external environment cannot be interfered due to too high height.

In this embodiment, the temperature measuring unit 3 is an integrated temperature transmitter, such as an SBW-series temperature transmitter. The temperature signal can be converted into an electric signal for transmission, and the faults possibly generated in the split connection process of the detection element and the transmitter are reduced. The integrated temperature transmitter is connected with an indoor control system through a temperature signal cable 4, and can realize real-time monitoring of the temperature in a medium in the pipeline main body 6.

The temperature signal cable 4 is provided with an explosion-proof flexible pipe 5 for protecting the temperature signal cable 4 and reducing the external environment interference.

This embodiment still provides a buried pipeline, including pipeline subject 6, above-mentioned temperature monitoring device and valve well 7, valve well 7 is that the valve of pipeline and underground piping is convenient in order to open and close some pipe network operation or maintenance effect at needs, and the well of setting, various valves have been arranged in the well installation. The temperature monitoring device is arranged near the valve well 7, and can be specifically arranged in a range of 2 meters near the valve well 7 so as to be convenient for inspection personnel to check.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Temperature monitoring device, its characterized in that includes:

the pipeline comprises an outer pipe (1), wherein two ends of the outer pipe (1) are opened, a first end of the outer pipe (1) can be communicated with a pipeline main body (6), and a second end of the outer pipe (1) can penetrate out of the ground;

the sleeve (2) is open at one end and closed at the other end, the closed end of the sleeve (2) is inserted into the outer pipe (1), the open end of the sleeve (2) is connected with the second end of the outer pipe (1) in a sealing mode, and an extension area communicated with the pipeline body (6) is formed between the sleeve (2) and the outer pipe (1);

the temperature measuring device comprises a temperature measuring piece (3), and a measuring rod of the temperature measuring piece (3) is inserted into the sleeve (2).

2. The temperature monitoring device according to claim 1, characterized in that the outer pipe (1) is flanged to the sleeve (2).

3. The temperature monitoring device according to claim 1, wherein the temperature measuring member (3) is detachably connected to the sleeve (2).

4. A temperature monitoring device according to claim 3, characterized in that the temperature measuring element (3) is screwed to the sleeve (2).

5. The temperature monitoring device according to claim 1, characterized in that the closed end of the sleeve (2) is inserted inside the duct body (6), the thermometric element (3) being in abutment with the closed end of the sleeve (2).

6. The temperature monitoring device according to claim 5, wherein the burial depth of the pipe body (6) is L, the radius of the pipe body (6) is R, the preset height of the outer pipe (1) extending out of the ground is H, the length of the outer pipe (1) is L + H, and the length of the sleeve (2) is 1/2R + L + H.

7. The temperature monitoring device according to claim 1, wherein the temperature measuring part (3) is an integrated temperature transmitter, and the integrated temperature transmitter is connected with a control system through a temperature signal cable (4).

8. The temperature monitoring device according to claim 7, characterized in that the temperature signal cable (4) is provided with an explosion-proof flexible tube (5).

9. Buried pipeline comprising a pipeline body (6) and a temperature monitoring device as claimed in any one of claims 1 to 8, the extension pipe (1) of the temperature monitoring device being welded to the pipeline body (6).

10. A buried pipeline according to claim 9, further comprising a valve well (7), the valve well (7) being laid within the range of the temperature monitoring device 2 m.