CN113803649B

CN113803649B - Long distance steam pipeline buried pipe leakage monitoring system

Info

Publication number: CN113803649B
Application number: CN202111005710.XA
Authority: CN
Inventors: 陈栋; 戴剑锋
Original assignee: Huaneng Nanjing Xingang Comprehensive Energy Co ltd
Current assignee: Huaneng Nanjing Xingang Comprehensive Energy Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2023-04-07
Anticipated expiration: 2041-08-30
Also published as: CN113803649A

Abstract

The invention discloses a buried pipe leakage monitoring system for a long-distance steam transmission pipeline, which comprises a pipeline assembly, a pipeline and a rain cover, wherein the rain cover is arranged at the top of the pipeline assembly; and the flooding-proof assembly comprises a fixing piece arranged on the outer wall of the conveying pipeline, a supporting piece (202) arranged outside the conveying pipeline, and a triggering piece arranged at the bottom of the fixing piece. According to the invention, through the cooperation of the pipeline assembly and the flood-proof assembly, the device can effectively prevent rain and ensure the ventilation of the pipeline when the rainfall is small, and prevent the interior from being too humid to generate corrosion. When the ground generates water accumulation in case of large rainfall, the water accumulation can be timely responded, and the cover is tightly covered to prevent the water from entering the pipeline. The device is simple and practical, convenient dismantlement, very big reduction make the pipeline intake the loss that produces because of the torrential rain.

Description

Long distance steam pipeline buried pipe leakage monitoring system

Technical Field

The invention relates to the technical field of leakage monitoring of a heating power pipeline, in particular to a buried pipe leakage monitoring system of a long-distance steam pipeline.

Background

The buried pipe of the long-distance steam pipeline is buried underground, so that the core pipe leakage or the outer sleeve leakage cannot be accurately judged when steam leaks, the judgment can only be carried out according to experience of maintainers, particularly, in rainy seasons, the possibility of large misjudgment exists, and at present, the core pipe leakage or the outer sleeve water inflow cannot be accurately and visually judged for the leakage of a certain section of buried pipe. Moreover, the pipeline is damaged due to corrosion or human activities, so that high-frequency manual line patrol is needed to master the running state of the pipeline and the influence of the surrounding external environment on the normal running of the pipeline, and a large amount of manpower and material resources are needed. Accordingly, the present invention provides a buried pipe leakage monitoring system for long transport steam pipelines. And the current direct-burried heating power pipeline mainly adopts the mode of installing the iron apron above the outer casing pipe to prevent rain in going out the ground part to play certain anti-flooding effect with the mode of a certain height above ground. In practical application, along with the planning adjustment of relevant region, the height of going out of ground of direct-burried heating power pipe can reduce than design, construction period, and the function of preventing flooding can weaken by a wide margin this moment, because the inside core pipe top of pipeline has welded seal, in order to prevent that the space between outer tube and the core pipe from intaking, just need extra welding to increase the outer tube, when increasing the cost, can not deal with the rainfall of different rainfall in a flexible way.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems with existing long transport steam pipeline underground pipe leakage monitoring systems.

Therefore, the present invention is to solve the problems that when a large amount of rainfall comes or water is accumulated on the ground, the part of the directly buried pipeline that is out of the ground cannot be effectively prevented from flooding, and when the pipeline leaks, whether the outer sleeve pipe leaks or the core pipe leaks at all cannot be clearly distinguished, and the finding of the leaking point is troublesome and laborious.

In order to solve the technical problems, the invention provides the following technical scheme: a buried pipe leakage monitoring system for a long-distance steam transmission pipeline comprises a pipeline assembly and a monitoring system, wherein the pipeline assembly comprises a transportation pipeline and a rainproof cover arranged at the top of the transportation pipeline; the flooding-proof assembly comprises a fixing piece arranged on the outer wall of the conveying pipeline, a supporting piece arranged outside the conveying pipeline and a triggering piece arranged at the bottom of the fixing piece; and the monitoring assembly comprises a sensor module arranged in the conveying pipeline, a transceiver module connected with the sensor module, a processing module arranged at the terminal and a display module connected with the processing module.

As a preferable scheme of the system for monitoring the leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the sensor module is including set up in the baroceptor of core pipe outer wall, and set up in the temperature sensor of overcoat inside pipe wall.

As a preferable scheme of the system for monitoring the leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the receiving and transmitting module comprises a processor, a signal transceiver connected with the processor and a power supply, wherein a bit character address code is stored in the processor, and the power supply is connected with the sensor module, the processor and the signal transceiver.

As a preferable scheme of the system for monitoring the leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the processing module comprises a server arranged on the terminal and a control terminal connected with the server.

As a preferable scheme of the system for monitoring leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the display module comprises a display, an alarm and a mobile end, wherein the display and the alarm are connected with the control terminal, and the mobile end is connected with the control terminal through a wireless signal.

As a preferable scheme of the system for monitoring the leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the transportation pipeline comprises a core pipe and an outer sleeve arranged outside the core pipe, and a certain gap is formed between the outer sleeve and the core pipe.

As a preferable scheme of the system for monitoring the leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the mounting including set up in the last fixed block in the outer tube outside, set up in go up the lower fixed block of fixed block bottom, set up in the first through-hole of fixed block one end down, set up in the second through-hole of the fixed block other end down, set up in the fluting of fixed block both sides down, and set up in the inside pivot of fluting, go up the fixed block with outer tube fixed connection and its middle part open there is square through hole, down the fixed block with outer tube fixed connection.

As a preferable scheme of the system for monitoring leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the mounting still including set up in the fluting of lower fixed block both sides, and set up in the inside pivot of fluting.

As a preferable scheme of the system for monitoring the leakage of the buried pipe of the long-distance steam pipeline, the system comprises: the support piece comprises a support rod arranged on the outer side of the outer sleeve, a cylinder arranged on the top of the core pipe and a spring arranged in the cylinder, wherein a limiting groove is formed in the bottom of the support rod, and the spring is an extension spring.

As a preferable scheme of the system for monitoring the leakage of the buried pipe of the long-distance steam pipeline, the system comprises: trigger the piece including set up in the buoyancy ring of outer tube bottom, set up in the trace at buoyancy ring top, set up in the shelves pole of trace both sides, and set up in the fender of fixed block both sides is colluded down, the trace with buoyancy ring fixed connection and with second through-hole sliding fit, keep off collude the bottom with the spacing groove cooperation, the top is passed through the pivot with fixed block is connected and its middle part is provided with the recess down.

The invention has the beneficial effects that: according to the invention, through the cooperation of the pipeline assembly and the flood-proof assembly, the device can effectively prevent rain and ensure the ventilation of the pipeline when the rainfall is small, and prevent the interior from being too humid to generate corrosion. When the ground generates water accumulation in case of large rainfall, the water accumulation can be timely responded, and the cover is tightly covered to prevent the water from entering the pipeline. The device is simple and practical, and convenient the dismantlement, very big reduction make the pipeline intake the loss that produces and when steam conduit takes place to leak because of the torrential rain, the staff can find fast and reveal the point and can distinguish specifically and reveal the position. The invention is convenient to use, does not need manual line patrol and saves material resources and financial resources.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:

FIG. 1 is a topological diagram of a system for monitoring leakage of a buried pipe of a long-distance steam pipeline.

FIG. 2 is a power supply topological diagram of a buried pipe leakage monitoring system of a long-distance steam transmission pipeline.

FIG. 3 is a scene use diagram of a flood-proof assembly of the long-distance steam pipeline buried pipe leakage monitoring system.

FIG. 4 is a sectional view of a flood assembly of the long steam pipeline buried pipe leakage monitoring system.

Fig. 5 is a structural diagram of a flood-proof assembly of a leakage monitoring system of a buried pipe of a long-distance steam pipeline.

FIG. 6 is a block diagram of a lower fixture of a flood-proof assembly of the buried pipeline leakage monitoring system for long-distance steam pipelines.

Fig. 7 is a partial structure diagram of a support rod of a flood-proof assembly of the buried pipe leakage monitoring system of the long-distance steam pipeline.

Fig. 8 is a structural diagram of a trigger part of a flood-proof assembly of the buried pipe leakage monitoring system of the long-distance steam pipeline.

Fig. 9 is a structure diagram of a lower fixing block and a blocking hook of a flood-proof assembly of the buried pipe leakage monitoring system of the long-distance steam pipeline.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 and 2, a first embodiment of the present invention provides a long steam pipeline buried pipe leakage monitoring system, which includes a pipeline assembly 100, a flood prevention assembly 200, and a monitoring assembly 300. The pipeline can ensure certain ventilation at ordinary times through the matching between the pipeline assembly 100 and the flooding-preventing assembly 200, flooding can be prevented when accumulated water is deep, and better detection and real-time feedback effects are achieved through the monitoring assembly 300.

Specifically, the pipe assembly 100 includes a transportation pipe 101 and a rain cover 102 disposed on the top of the transportation pipe 101, the transportation pipe 101 at the outlet portion is a spare opening for later connection with other pipes, and the rain cover 102 is for preventing water from entering the inside of the pipe.

Preferably, the flood-proof assembly 200 comprises a fixing member 201 arranged on the outer wall of the transportation pipeline 101, a supporting member 202 arranged outside the transportation pipeline 101, and a triggering member 203 arranged at the bottom of the fixing member 201, wherein the fixing member 201 fixes the supporting member 202 on the outer side of the transportation pipeline 101, when accumulated water is deep, the triggering member 203 triggers to enable the supporting member 202 to fall down, and at the moment, the rain-proof cover 102 falls down to cover the opening of the pipeline. Does not need manual operation and is convenient to use.

Preferably, the monitoring assembly 300 comprises a sensor module 301 arranged inside the transportation pipeline 101, a transceiver module 302 connected with the sensor module 301, a processing module 303 arranged at a terminal, and a display module 304 connected with the processing module 303, and the sensor module 301 can feed back the change of the internal environment of the pipeline in real time; the transceiver module 302 may collect signals fed back by the sensor module 301; the processing module 303 can process and identify the data sent by the transceiver module 302; the display module 304 can display the data in an imagination manner so that workers can view the data in real time;

when using, when weather does not have precipitation or the rainfall is less, rain-proof lid 102 can prevent that the rainwater from getting into inside the pipeline, because support piece 202 props up rain-proof lid 102 for there is certain space in addition between rain-proof lid 102 and the pipeline mouth, can guarantee the ventilation of pipeline, prevents that the pipeline is inside to produce the corrosion because of the humidity between too long. When a large amount of rainfall comes to cause deep accumulated water on the ground, the trigger part 203 is triggered by the accumulated water, and the structure moves to cause the support part 202 to fall, so that the rain cover 102 falls and tightly covers the opening of the pipeline to prevent the pipeline from flooding. The fixing member 201 fixes the supporting member 202 and the trigger member 203. When the pipeline is internally leaked, the sensor module 301 feeds back the environmental change to the transceiver module 302 through an electric signal, the transceiver module 302 sends the collected signal to the processing module 303, the processing module 303 processes and outputs the signal, and then the position information and the specific condition of the pipeline leakage are fed back to the staff through the display module 304. The device combines together with weather, and simple structure, automatic triggering can play effectual anti-flooding effect to the pipeline, has reduced manpower and materials and this system can help the staff to find fast and reveal the point and can distinguish specifically and reveal the position, need not artifical the line patrol.

Example 2

Referring to fig. 1 and 2, a second embodiment of the present invention is based on the previous embodiment.

Specifically, the sensor module 301 includes an air pressure sensor 301a disposed on the outer wall of the core tube 101a, and a temperature sensor 301b disposed on the inner wall of the outer sleeve 101b, and when the core tube 101a leaks, the pressure change at the leaking point will increase rapidly, and the temperature change is not large; when the outer tube 101b leaks, the temperature change at the leak point increases sharply, and the pressure change is not large. Namely: the environmental pressure changes greatly, i.e., leakage occurs in the core tube 101a, and the temperature changes greatly, i.e., leakage occurs in the outer tube 101 b. Therefore, the air pressure sensor 201a and the temperature sensor 201b are provided to recognize the leak state. 485 type pressure transmitter can be selected for use to baroceptor 201a, and it has 485 communication modbus agreement, and pt100 temperature sensor CWF1 can be selected for use to temperature sensor 201b, and moisture proofing, insulating nature are good, the reliability is high, time constant is little, the reaction is sensitive.

Preferably, the transceiver module 302 includes a processor 302a, a signal transceiver 302b connected to the processor 302a, and a power supply 302c, the processor 302a has a 16-bit character address code stored therein, and the power supply 302c is connected to the sensor module 301, the processor 302a, and the signal transceiver 302b, the address code is JSAXWII 010101, the first five-bit character represents a specific administrative area, the sixth and seventh bits represent a specific road, and the last nine bits represent a specific section of the road, the address information stored in the processor 302a can help a worker to quickly locate a fault location, and the signal transceiver 302b can select an RS-485 interface, which has a multi-station capability, so that a user can conveniently establish a device network using a single RS-485 interface and has good noise immunity and long transmission distance.

Preferably, the processing module 303 includes a server 303a installed in the terminal, and a control terminal 303b connected to the server 303a, and the server 303a performs certain data relay and then the control terminal 303b performs output.

Preferably, the display module 304 includes a display 304a, an alarm 304b, and a mobile terminal 304c, the display 304a and the alarm 304b are both connected to the control terminal 303b, the mobile terminal 304c is connected to the control terminal 303b through a wireless signal, when a pipeline leaks, the transmitted data can cause the alarm 304b to alarm to remind a worker, and the display 304a can be used for the worker to view detailed information.

In use, high-temperature steam is transported inside the core tube 101a, and at this time, if the core tube 101a leaks, the pressure in the vicinity of the leakage point increases rapidly, and if the outer tube 101b leaks, the temperature of the leakage point increases rapidly. At this time, the air pressure sensor 301a and the temperature sensor 301b transmit the environmental change condition to the processor 302a through an electrical signal, wherein the sensor module 301, the processor 302a and the signal transceiver 302b are powered by the power source 302c, the processor 302a transmits the 16-bit character address code with the address information to the signal transceiver 302b, the signal transceiver 302b transmits the address code to the server 303a through the RS-485 interface, and the server 303a stores and relays the signal to a certain extent and then outputs the signal through the control terminal 303 b. When the pipeline leaks, the transmitted data can enable the alarm 304b to alarm so as to remind workers, and the display 304a can be used for the workers to view detailed information. The whole system is convenient to use, can help workers to find the leakage point quickly and can distinguish the specific leakage position, manual line patrol is not needed, and material and financial resources are saved.

Example 3

Referring to fig. 3, a third embodiment of the present invention is based on the first two embodiments.

Specifically, the transportation pipeline 101 comprises a core pipe 101a and an outer sleeve 101b arranged outside the core pipe 101a, a certain gap is formed between the outer sleeve 101b and the core pipe 101a, the top of the ground part of the core pipe 101a is welded and sealed, the transportation pipeline is opened only when being connected with other pipelines, and the gap between the ground part of the outer sleeve 101b and the ground part of the core pipe 101a ensures certain ventilation, so that the interior of the pipeline is prevented from being rusted due to moisture.

Preferably, the fixing member 201 includes an upper fixing block 201a disposed outside the outer sleeve 101b, a lower fixing block 201b disposed at the bottom of the upper fixing block 201a, a first through hole 201b-1 disposed at one end of the lower fixing block 201b, a second through hole 201b-2 disposed at the other end of the lower fixing block 201b, slots 201b-3 disposed at both sides of the lower fixing block 201b, and a rotating shaft 201b-4 disposed inside the slots 201b-3, the upper fixing block 201a is fixedly connected to the outer sleeve 101b, and a square through hole is formed at the middle portion of the upper fixing block 201a, and the lower fixing block 201b is fixedly connected to the outer sleeve 101 b.

Preferably, the fixing member 201 further includes a slot 201b-3 disposed at both sides of the lower fixing block 201b, and a rotation shaft 201b-4 disposed inside the slot 201 b-3.

Preferably, the supporting member 202 includes a supporting rod 202a disposed outside the outer sleeve 101b, a cylinder 202b disposed on the top of the core tube 101a, and a spring 202c disposed inside the cylinder 202b, the bottom of the supporting rod 202a is provided with a limiting groove 202a-1, the spring 202c is an extension spring, and the spring 202c makes the rain-proof cover 102 have a downward trend, so as to ensure that the rain-proof cover 102 is tightly attached to the outer sleeve 101 b.

Further, the trigger member 203 comprises a floating ring 203a disposed at the bottom of the outer sleeve 101b, a linking rod 203b disposed at the top of the floating ring 203a, a blocking rod 203c disposed at both sides of the linking rod 203b, and a blocking hook 203d disposed at both sides of the lower fixing block 201b, the linking rod 203b is fixedly connected to the floating ring 203a and slidably engaged with the second through hole 201b-2, the bottom of the blocking hook 203d is engaged with the limiting groove 202a-1, the top is connected to the lower fixing block 201b through a rotating shaft 201b-4, and a groove 203d-1 is disposed in the middle of the top, the bottom of the floating ring 203a can be made of foam, the top can be made of plastic, and the top has both buoyancy and light weight.

In use, high-temperature steam is transported inside the core tube 101a, and at this time, if the core tube 101a leaks, the pressure in the vicinity of the leakage point increases rapidly, and if the outer tube 101b leaks, the temperature of the leakage point increases rapidly. At this time, the air pressure sensor 301a and the temperature sensor 301b transmit the environmental change condition to the processor 302a through an electrical signal, wherein the sensor module 301, the processor 302a and the signal transceiver 302b are powered by the power source 302c, the processor 302a transmits the 16-bit character address code with the address information to the signal transceiver 302b, the signal transceiver 302b transmits the address code to the server 303a through the RS-485 interface, and the server 303a stores and relays the signal to a certain extent and then outputs the signal through the control terminal 303 b. When the pipeline leaks, the transmitted data can enable the alarm 304b to alarm so as to remind workers, and the display 304a can be used for the workers to view detailed information. Entire system convenient to use can help the staff to find fast and reveal the point and can distinguish specifically and reveal the position, need not the manual work and patrols the line, saves material resources and financial resources.

When weather is free of precipitation or rainfall is small, the rain-proof cover 102 can prevent rainwater from entering a gap between the outer sleeve 101b and the core pipe 101a, and the support piece 202 supports the rain-proof cover 102, so that a certain gap is reserved between the rain-proof cover 102 and the outer sleeve 101b, ventilation of a pipeline can be guaranteed, and the interior of the pipeline is prevented from being rusted due to too long damp. When a large rainfall comes to cause the surface gathered water to slowly rise, the buoyancy ring 203a also slowly rises under the action of water buoyancy to drive the linkage rod 203b to rise along the second through hole 201b-2, the blocking rod 203c on the linkage rod 203b also rises along with the water buoyancy, and at the moment, the blocking hook 203d is not blocked by the blocking rod 203c and starts to rotate around the rotating shaft 201b-4, so that the blocking hook 203d is separated from the limiting groove 202a-1, and the supporting rod 202a falls along the first through hole 201 b-1. At this time, the rain cover 102 loses support, starts to fall under the action of gravity and the spring 202c, and tightly covers the opening of the pipeline, so that the pipeline is prevented from flooding. The device combines together with weather, simple structure, and automatic triggering can play effectual anti-flooding effect to the pipeline, has reduced manpower and materials.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a long distance steam pipeline buried pipe leakage monitoring system which characterized in that: comprises the steps of (a) preparing a substrate,

the pipeline assembly (100) comprises a transportation pipeline (101) and a rainproof cover (102) arranged at the top of the transportation pipeline (101);

the flooding-proof assembly (200) comprises a fixing piece (201) arranged on the outer wall of the transportation pipeline (101), a supporting piece (202) arranged outside the transportation pipeline (101), and a triggering piece (203) arranged at the bottom of the fixing piece (201); and the number of the first and second groups,

the monitoring assembly (300) comprises a sensor module (301) arranged in the transportation pipeline (101), a transceiver module (302) connected with the sensor module (301), a processing module (303) arranged at a terminal, and a display module (304) connected with the processing module (303);

the conveying pipeline (101) comprises a core pipe (101 a) and an outer sleeve (101 b) arranged outside the core pipe (101 a), and a certain gap is formed between the outer sleeve (101 b) and the core pipe (101 a);

the fixing piece (201) comprises an upper fixing block (201 a) arranged on the outer side of the outer sleeve (101 b), a lower fixing block (201 b) arranged at the bottom of the upper fixing block (201 a), a first through hole (201 b-1) arranged at one end of the lower fixing block (201 b), and a second through hole (201 b-2) arranged at the other end of the lower fixing block (201 b), the upper fixing block (201 a) is fixedly connected with the outer sleeve (101 b), a square through hole is formed in the middle of the upper fixing block (201 a), and the lower fixing block (201 b) is fixedly connected with the outer sleeve (101 b);

the fixing piece (201) further comprises a slot (201 b-3) arranged at two sides of the lower fixing block (201 b), and a rotating shaft (201 b-4) arranged in the slot (201 b-3);

the supporting piece (202) comprises a supporting rod (202 a) arranged on the outer side of the outer sleeve (101 b), a cylinder (202 b) arranged at the top of the core pipe (101 a), and a spring (202 c) arranged in the cylinder (202 b), a limiting groove (202 a-1) is arranged at the bottom of the supporting rod (202 a), and the spring (202 c) is an extension spring;

the trigger piece (203) comprises a floating ring (203 a) arranged at the bottom of the outer sleeve (101 b), a linkage rod (203 b) arranged at the top of the floating ring (203 a), stop rods (203 c) arranged at two sides of the linkage rod (203 b), and stop hooks (203 d) arranged at two sides of the lower fixed block (201 b), wherein the linkage rod (203 b) is fixedly connected with the floating ring (203 a) and is in sliding fit with the second through hole (201 b-2), the bottom of the stop hook (203 d) is matched with the limiting groove (202 a-1), the top of the stop hook is connected with the lower fixed block (201 b) through the rotating shaft (201 b-4), and the middle of the stop hook is provided with a groove (203 d-1);

when large rainfall comes to make the surface ponding slowly rise, buoyancy ring (203 a) slowly rises under the effect of water buoyancy, drives trace (203 b) along second through-hole (201 b-2) rise, shelves pole (203 c) on trace (203 b) also rise along with it, and this moment keep off collude (203 d) do not have shelves pole (203 c) to block, begin to rotate around pivot (201 b-4), make keep off collude (203 d) break away from in spacing groove (202 a-1), bracing piece (202 a) along first through-hole (201 b-1) whereabouts, at this moment rain-proof lid (102) lose the support, begin to fall under the effect of gravity and spring (202 c), and tightly cover the pipeline mouth.

2. The long steam pipeline buried pipe leakage monitoring system of claim 1, wherein: the sensor module (301) comprises an air pressure sensor (301 a) arranged on the outer wall of the core pipe (101 a) and a temperature sensor (301 b) arranged on the inner wall of the outer sleeve (101 b).

3. The long steam pipeline buried pipe leakage monitoring system of claim 2, wherein: the transceiver module (302) comprises a processor (302 a), a signal transceiver (302 b) connected with the processor (302 a), and a power supply (302 c), wherein the processor (302 a) has a 16-bit character address code stored therein, and the power supply (302 c) is connected with the sensor module (301), the processor (302 a) and the signal transceiver (302 b).

4. The long steam pipeline buried pipe leakage monitoring system of claim 3, wherein: the processing module (303) comprises a server (303 a) arranged on the terminal and a control terminal (303 b) connected with the server (303 a).

5. The long steam pipeline buried pipe leakage monitoring system of claim 4, wherein: the display module (304) comprises a display (304 a), an alarm (304 b) and a mobile terminal (304 c), the display (304 a) and the alarm (304 b) are both connected with the control terminal (303 b), and the mobile terminal (304 c) is connected with the control terminal (303 b) through a wireless signal.