CN217109173U

CN217109173U - Detect liquid nitrogen pipeline leakage equipment

Info

Publication number: CN217109173U
Application number: CN202220313350.3U
Authority: CN
Inventors: 管志鹏; 孙少华; 杜振威
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-08-02
Anticipated expiration: 2032-02-16

Abstract

The utility model relates to the technical field of pipeline detection, in particular to a device for detecting leakage of a liquid nitrogen pipeline, wherein an upper sealing pipe is arranged above the pipeline to be detected, a lower sealing pipe is arranged below the pipeline to be detected, a groove is arranged at the middle position of the upper sealing pipe, a liquid nitrogen detector is arranged in the groove, an audible and visual alarm is arranged at the right side of the groove, and a microprocessor is arranged in the wall body of the upper sealing pipe; the utility model discloses leak detection's in-process detects through the liquid nitrogen detector to send microprocessor with the mode of signal of telecommunication with the testing result, microprocessor carries out analysis and processing to this testing result, when the liquid nitrogen detector detects that there is liquid nitrogen to leak in the liquid nitrogen pipeline, microprocessor can send the signal of telecommunication to audible-visual annunciator, makes audible-visual annunciator take place audible-visual annunciator, in order to remind the staff, this liquid nitrogen pipeline takes place to leak, need carry out timely repair to the liquid nitrogen pipeline and handle.

Description

Detect liquid nitrogen pipeline leakage equipment

Technical Field

The utility model relates to a pipeline inspection technical field specifically is a detect liquid nitrogen pipeline leakage equipment.

Background

The liquid nitrogen is liquid nitrogen which is inert, colorless, odorless, non-corrosive, non-combustible and extremely low-temperature liquid. In the process of transporting liquid nitrogen, a special liquid nitrogen pipeline is needed for transporting, and the liquid nitrogen pipeline can be damaged after being used for a long time, so that the leakage of substances in the liquid nitrogen pipeline is caused, and therefore liquid nitrogen pipeline detection equipment needs to be provided. The existing pipeline leakage detection equipment can only carry out leakage detection on the joint of two pipelines generally, and cannot detect pipeline leakage caused by cracks generated on the pipe wall of a single pipeline.

A pipeline leak testing equipment that prior art developed, a pipeline leak testing equipment like CN212029170U, the utility model discloses can produce the cavity between pipeline and lower sealed tube and the last sealed tube to be measured, the air pump extracts the gas in the cavity, make the cavity become the vacuum, gas acquisition instrument is gathering the gas in the vacuum cavity, if gas acquisition instrument detects gas in the vacuum cavity, then show the pipe wall of this section pipeline and produce the crack, but it has following weak point in the use, do not set up reminding device, at the in-process that carries out leak testing to the liquid nitrogen pipeline, when detecting the leakage, can't remind the staff, can influence the leak testing of liquid nitrogen pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detect liquid nitrogen pipeline and leak equipment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a detect liquid nitrogen pipeline leakage equipment, includes pipeline, last gland and lower gland that awaits measuring, the top of pipeline that awaits measuring is provided with the gland, the below of pipeline that awaits measuring is provided with down the gland, go up the gland and be provided with the cavity down between gland and the pipeline that awaits measuring, the intermediate position of going up the gland is seted up flutedly, be provided with the liquid nitrogen detector in the recess, the right side audible-visual annunciator of recess, the inside of going up the gland wall body is provided with microprocessor, microprocessor is located audible-visual annunciator under, liquid nitrogen detector and audible-visual annunciator all are in the same place with microprocessor electric connection, microprocessor' S model is STC15F2K60S 2.

As the utility model discloses scheme further again, test probe has been seted up to the intermediate position of liquid nitrogen detector bottom, it is provided with first sealing hose for test probe's position to go up the sealed tube, test probe inserts in first sealing hose.

As the utility model discloses scheme further again, audible-visual annunciator's right side is provided with the aspiration pump, the bottom of aspiration pump is provided with the exhaust tube, it is provided with second sealing hose for the position of exhaust tube to go up the sealing tube, the exhaust tube inserts in the second sealing hose.

As the utility model discloses scheme further again, the top of recess is provided with the apron, apron slidable mounting is on the recess, the right side top of apron is provided with the fixed block.

As the utility model discloses scheme further again, be provided with first sealing strip on the junction of last sealed tube and the pipeline that awaits measuring, the sealed tube is provided with the second sealing strip with the junction of the pipeline that awaits measuring down, first sealing strip and second sealing strip all are in the same place with the wall body close laminating of the pipeline that awaits measuring.

As the utility model discloses scheme further again, both sides all are provided with a plurality of installation pieces around going up sealed tube and lower sealed tube, be provided with the threaded rod on the installation piece on going up sealed tube, set up threaded hole on the installation piece on the sealed tube down, threaded rod and screw hole phase-match.

As the utility model discloses scheme further again, the left and right sides of lower gland bottom all is hugged closely and is provided with the supporting seat, and hugs closely in the bottom of supporting seat and be provided with the slipmat, the left and right sides at last gland top all is provided with the handle.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up flutedly at the intermediate position of last sealed tube, and be provided with the liquid nitrogen detector in the recess, right side at the recess is provided with audible-visual annunciator, inside at last sealed tube wall body is provided with microprocessor, in-process carrying out leak detection to the liquid nitrogen pipeline, detect through the liquid nitrogen detector, and send the testing result to microprocessor with the mode of signal of telecommunication, microprocessor carries out analysis and processing to this testing result, when the liquid nitrogen detector detects that there is liquid nitrogen to leak in the liquid nitrogen pipeline, microprocessor can send the signal of telecommunication to audible-visual annunciator, make audible-visual annunciator take place audible-visual annunciator, with the warning staff, this department liquid nitrogen pipeline takes place to leak, need carry out timely repair to the liquid nitrogen pipeline and handle.

Drawings

FIG. 1 is a schematic structural diagram of a device for detecting leakage of a liquid nitrogen pipeline;

FIG. 2 is a schematic view showing the internal structure of an apparatus for detecting leakage of a liquid nitrogen pipeline;

FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 4 is a schematic cross-sectional structure diagram of an apparatus for detecting leakage of a liquid nitrogen pipeline.

In the figure: 1. a pipeline to be tested; 2. an upper sealing tube; 201. a groove; 202. a liquid nitrogen detector; 203. detecting a probe; 3. a lower seal tube; 301. a supporting seat; 302. a non-slip mat; 4. a cavity; 5. an audible and visual alarm; 6. a microprocessor; 7. a first sealing hose; 8. an air pump; 801. an air exhaust pipe; 9. a second sealing hose; 10. a cover plate; 11. a fixed block; 12. a first seal strip; 13. a second seal strip; 14. mounting blocks; 15. a threaded rod; 16. a threaded hole; 17. a handle.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, an apparatus for detecting leakage of a liquid nitrogen pipeline includes a pipeline 1 to be detected, an upper sealing pipe 2 and a lower sealing pipe 3, the upper sealing pipe 2 is disposed above the pipeline 1 to be detected, the lower sealing pipe 3 is disposed below the pipeline 1 to be detected, a cavity 4 is disposed between the upper sealing pipe 2 and the pipeline 1 to be detected, a groove 201 is disposed at a middle position of the upper sealing pipe 2, a liquid nitrogen detector 202 is disposed in the groove 201, an audible and visual alarm 5 is disposed on a right side of the groove 201, a microprocessor 6 is disposed inside a wall body of the upper sealing pipe 2, the microprocessor 6 is disposed under the audible and visual alarm 5, the liquid nitrogen detector 202 and the audible and visual alarm 5 are electrically connected to the microprocessor 6, the microprocessor 6 is STC15F2K60S2, during a process of performing leakage detection on the liquid nitrogen pipeline, detection is performed by the liquid nitrogen detector 202, and the detection result is transmitted to the microprocessor 6 in the form of an electric signal, the microprocessor 6 analyzes and processes the detection result, when the liquid nitrogen detector 202 detects that liquid nitrogen leaks from the liquid nitrogen pipeline, the microprocessor 6 sends an electric signal to the audible and visual alarm 5, so that the audible and visual alarm 5 generates audible and visual alarm to remind workers that the liquid nitrogen pipeline leaks and needs to be repaired in time.

In fig. 1, 2 and 3, a detection probe 203 is opened at a middle position of the bottom of the liquid nitrogen detector 202, a first sealing hose 7 is provided at a position of the upper sealing tube 2 corresponding to the detection probe 203, and the detection probe 203 is inserted into the first sealing hose 7.

In fig. 1 and 2, an air suction pump 8 is arranged on the right side of the audible and visual alarm 5, an air suction pipe 801 is arranged at the bottom of the air suction pump 8, a second sealing hose 9 is arranged at the position, corresponding to the air suction pipe 801, of the upper sealing pipe 2, the air suction pipe 801 is inserted into the second sealing hose 9, before leakage detection is performed on the liquid nitrogen pipeline, the air suction pump 8 is started, air in the cavity 4 is sucked out through the air suction pipe 801, the cavity 4 is made to be in a vacuum state, after the cavity is kept still for a period of time, leakage detection is performed on the liquid nitrogen pipeline through the liquid nitrogen detector 202, during detection of the liquid nitrogen, the fact that the cavity 4 cannot exchange gas with air in the environment can be ensured through the first sealing hose 7 and the second sealing hose 9, and accuracy of a liquid nitrogen pipeline leakage detection result is further improved.

In fig. 1, 2 and 3, the top of recess 201 is provided with apron 10, apron 10 slidable mounting is on recess 201, the right side top of apron 10 is provided with fixed block 11, under the normality, apron 10 covers tightly at recess 201, can protect liquid nitrogen detector 202 in the recess 201 through apron 10, in the in-process that detects is revealed to the liquid nitrogen pipeline to needs, promote apron 10 left through fixed block 11, open recess 201, operate through the touch key to on the liquid nitrogen detector 202, carry out the leak detection of liquid nitrogen pipeline.

In fig. 1 and 2, be provided with first sealing strip 12 on the junction of last sealed tube 2 and the pipeline 1 that awaits measuring, lower sealed tube 3 is provided with second sealing strip 13 with the junction of the pipeline 1 that awaits measuring, first sealing strip 12 and second sealing strip 13 all with the pipeline 1's that awaits measuring wall body is close-fitting together, can make through first sealing strip 12 and second sealing strip 13 can not produce the gap between last sealed tube 2 and lower sealed tube 3 and the pipeline 1 that awaits measuring, in-process to carrying out leak detection to the liquid nitrogen pipeline, air among the external environment can not permeate cavity 4 in, thereby can not influence the accuracy that liquid nitrogen pipeline leak detection.

In fig. 1 and 4, both sides all are provided with a plurality of installation pieces 14 around last sealed tube 2 and lower sealed tube 3, be provided with threaded rod 15 on the installation piece 14 on last sealed tube 2, set up threaded hole 16 on the installation piece 14 on lower sealed tube 3, threaded rod 15 and threaded hole 16 phase-match, in the in-process that detects the liquid nitrogen pipeline, install sealed tube 3 in the below of the pipeline 1 that awaits measuring down, install last sealed tube 2 in the top of the pipeline 1 that awaits measuring, and aim at last sealed tube 2 and lower sealed tube 3, through mutually supporting of threaded rod 15 and threaded hole 16, will go up sealed tube 2 and sealed tube 3 down and fix.

In fig. 1, in fig. 2 and fig. 4, the left and right sides of lower sealed tube 3 bottom all hugs closely and is provided with supporting seat 301, and hug closely in the bottom of supporting seat 301 and be provided with slipmat 302, in-process detecting the liquid nitrogen pipeline, can make stable placing subaerial of lower sealed tube 3 through slipmat 302, ensure that relative slip can not take place between whole device and the ground, in-process detecting the liquid nitrogen pipeline, whole device keeps stable, thereby can not influence the accuracy that the liquid nitrogen pipeline detected, the left and right sides at upper sealed tube 2 top all is provided with handle 17, the staff can carry whole device through handle 17, be convenient for the transport and the removal of whole device, thereby be convenient for detect the arbitrary department of liquid nitrogen pipeline.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a detect liquid nitrogen pipeline leakage equipment, includes pipeline (1) that awaits measuring, goes up sealed tube (2) and lower sealed tube (3), the top of pipeline (1) that awaits measuring is provided with sealed tube (2), the below of pipeline (1) that awaits measuring is provided with down sealed tube (3), go up sealed tube (2) and be provided with cavity (4) between sealed tube (3) and the pipeline (1) that awaits measuring down, its characterized in that, the intermediate position of going up sealed tube (2) is seted up flutedly (201), be provided with liquid nitrogen detector (202) in recess (201), right side audible-visual annunciator (5) of recess (201), the inside of going up sealed tube (2) wall body is provided with microprocessor (6), microprocessor (6) are located audible-visual annunciator (5) under.

2. The device for detecting the leakage of the liquid nitrogen pipeline according to claim 1, wherein a detection probe (203) is arranged at the middle position of the bottom of the liquid nitrogen detector (202), a first sealing hose (7) is arranged at the position, relative to the detection probe (203), of the upper sealing pipe (2), and the detection probe (203) is inserted into the first sealing hose (7).

3. The device for detecting the liquid nitrogen pipeline leakage according to claim 1, wherein a suction pump (8) is arranged on the right side of the audible and visual alarm (5), a suction pipe (801) is arranged at the bottom of the suction pump (8), a second sealing hose (9) is arranged at the position, relative to the suction pipe (801), of the upper sealing pipe (2), and the suction pipe (801) is inserted into the second sealing hose (9).

4. The liquid nitrogen pipeline leakage detection device according to claim 1, wherein a cover plate (10) is arranged above the groove (201), the cover plate (10) is slidably mounted on the groove (201), and a fixing block (11) is arranged above the right side of the cover plate (10).

5. The liquid nitrogen pipeline leakage detection device according to claim 1, wherein a first sealing strip (12) is arranged at the joint of the upper sealing pipe (2) and the pipeline (1) to be detected, a second sealing strip (13) is arranged at the joint of the lower sealing pipe (3) and the pipeline (1) to be detected, and the first sealing strip (12) and the second sealing strip (13) are tightly attached to the wall body of the pipeline (1) to be detected.

6. The liquid nitrogen pipeline leakage detection device according to claim 1, wherein a plurality of mounting blocks (14) are arranged on the front side and the rear side of the upper sealing pipe (2) and the lower sealing pipe (3), a threaded rod (15) is arranged on each mounting block (14) on the upper sealing pipe (2), a threaded hole (16) is formed in each mounting block (14) on the lower sealing pipe (3), and the threaded rod (15) is matched with the threaded hole (16).

7. The liquid nitrogen pipeline leakage detection device according to claim 1, wherein the supporting seat (301) is closely arranged at the left side and the right side of the bottom of the lower sealing pipe (3), the anti-skid pad (302) is closely arranged at the bottom of the supporting seat (301), and the handles (17) are arranged at the left side and the right side of the top of the upper sealing pipe (2).