CN214948276U - Expansion joint leakage detection device in heat supply pipeline - Google Patents

Abstract

The utility model belongs to the technical field of heat supply pipelines, in particular to an expansion joint leakage detection device in a heat supply pipeline, which comprises a corrugated pipe expansion joint, wherein the left end and the right end of the corrugated pipe expansion joint are respectively provided with a first flange plate and a second flange plate, the first flange plate is connected with a third flange plate, the third flange plate is connected with a first heat supply pipe, the second flange plate is connected with a fourth flange plate, the fourth flange plate is connected with a second heat supply pipe, the first flange plate and the third flange plate are fixed with a first fixing seat through bolts, the second flange plate and the fourth flange plate are fixed with a second fixing seat through bolts, the first fixing seat and the second fixing seat are respectively provided with a first rotating shaft connecting seat and a second rotating shaft connecting seat, the first rotating shaft connecting seat and the second rotating shaft connecting seat are connected with a telescopic detection device in a co-rotating way, the device can adapt to the deformation of the corrugated pipe expansion joint in the daily use, the deformation of the expansion joint is prevented from influencing the detection effect.

Description

Expansion joint leakage detection device in heat supply pipeline

Technical Field

The utility model belongs to the technical field of the heat supply pipeline, concretely relates to expansion joint leak testing device in heat supply pipeline.

Background

An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and easy deformation, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell and avoiding causing strength damage, instability damage and tube pull-out damage. The expansion joints are various in types, and commonly used structures such as wave shapes, ring plate welding, clamping shell type structures and the like are adopted, wherein the wave-shaped expansion joints are most widely applied, the urban centralized heating pipe network is a pipeline system for conveying and distributing heating media to heat users from an urban centralized heating heat source, and the expansion joints are required to be used for connection between two sections of heating pipelines in the construction of the heating pipelines.

Compared with the prior art the problem that exists:

the expansion joint is broken and is leaked one of the leading trouble reasons of heat supply pipe network, consequently needs expansion joint leakage detection device to carry out real-time supervision to the expansion joint to in time discover the leakage condition, this type of device that has now, because the deformation of expansion joint causes the influence to the testing effect easily, is difficult to satisfy the user demand.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an expansion joint leak testing device among heat supply pipeline, through scalable detection device's setting, the deformation that adaptation bellows expansion joint that makes this device can be fine takes place in daily use avoids causing the influence to the detection effect because of the deformation of expansion joint.

In order to achieve the above object, the utility model provides a following technical scheme: a device for detecting the leakage of an expansion joint in a heat supply pipeline comprises a corrugated pipe expansion joint, wherein a first flange plate and a second flange plate are respectively arranged at the left end and the right end of the corrugated pipe expansion joint, the first flange plate is connected with a third flange plate, the third flange plate is fixedly arranged at the right end of the first heat supply pipe, the right end of the first flange plate is connected with a fourth flange plate which is fixedly arranged at the left end of the second heat supply pipe, the first flange plate and the third flange plate are fixed with a first fixed seat through bolts, the second flange plate and the fourth flange plate are fixed with a second fixed seat through bolts, the first fixed seat and the second fixed seat are respectively provided with a first rotating shaft connecting seat and a second rotating shaft connecting seat, and the first rotating shaft connecting seat and the second rotating shaft connecting seat are connected with a telescopic detection device in a rotating mode together.

Preferably, first axis of rotation connecting seat with second axis of rotation connecting seat all includes PMKD, PMKD fixed mounting be in first fixing base with on the second fixing base, the last axis of rotation of installing of PMKD, the other end and the rolling bearing joint of axis of rotation, rolling bearing fixed mounting is in the inner chamber of connecting seat, the connecting seat with scalable detection device rotates to be connected, and through axis of rotation and rolling bearing cooperation, can make first axis of rotation connecting seat and second axis of rotation connecting seat rotate along with the displacement of first fixing base and second fixing base.

Preferably, the telescopic detection device comprises a first telescopic cavity tube, a telescopic rod is inserted into an inner cavity of the first telescopic cavity tube, the other end of the telescopic rod is inserted into a second telescopic cavity tube, a first limiting ring is fixedly arranged at the right end of the first telescopic cavity tube, a second limiting ring is fixedly arranged at the left end of the second telescopic cavity tube, a first limiting block and a second limiting block are fixedly arranged at the left end and the right end of the telescopic rod, a temperature and humidity sensor is fixedly arranged at the central position of the telescopic rod, the telescopic rod is positioned at the left side and the right side of the temperature and humidity sensor, a heat conduction pipe device is further arranged at one side close to the expansion joint of the corrugated pipe, the first limiting block is matched with the first limiting ring, the second limiting block is matched with the second limiting ring, the telescopic rod is prevented from being separated from the first telescopic cavity tube and the second telescopic cavity tube, and the two ends of the telescopic detection device are respectively rotatably connected with the first rotating shaft connecting seat and the second rotating shaft connecting seat, and the telescopic rod in the telescopic detection device can freely stretch and retract in the first telescopic cavity tube and the second telescopic cavity tube to adapt to the deformation of the expansion joint of the corrugated pipe, and the temperature and humidity change in soil is sensed by the temperature and humidity sensor, so that the condition of the rupture of the expansion joint can be found in time.

Preferably, the heat pipe device includes that first connection copper post and second connect the copper post, and first connection copper post and second are connected the copper post and are kept away from the one end of telescopic link is connected with heat conduction copper pipe, heat conduction copper pipe with temperature and humidity sensor's temperature sensing connects fixedly, can absorb the hydrothermal temperature in the soil of soaking through heat conduction copper pipe for temperature variation is sensed to temperature sensing sensor's temperature sensing joint, and the cooperation humidity sensing connects, in time discovers the broken fault condition of expansion joint.

Preferably, the inner chamber of first flexible chamber pipe is the circular port, the first stopper of telescopic link left end is cylindrical, the inner chamber of the flexible chamber pipe of second is the quad slit, the second stopper of telescopic link right-hand member is the quadrangular shape, when not influencing the telescopic link and wrench movement along with the wrench movement of bellows expansion joint, temperature and humidity sensor and heat conduction copper pipe can keep towards the bellows expansion joint, prevent that the telescopic link from the too big or even upset of journey degree in the use, influence detection effect.

Preferably, the number of the first rotating shaft connecting seats, the second rotating shaft connecting seats and the telescopic detection devices is four, and the first rotating shaft connecting seats, the second rotating shaft connecting seats and the telescopic detection devices are respectively fixed at the front, the back, the upper and the lower parts of the device, so that the detection effect is ensured.

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

when the expansion joint of the corrugated pipe is broken, hot water in the heat supply pipeline flows out, the heat conduction copper pipe can absorb the temperature of the hot water immersed in soil, and after the temperature and humidity sensor senses the humidity change in the soil and the temperature change of the heat conduction copper pipe, fault information can be transmitted to a ground control center through a connecting circuit, so that the broken fault condition of the expansion joint can be found in time;

the device is characterized in that the telescopic detection device is arranged in four directions, namely the front direction, the rear direction, the upper direction and the lower direction, the telescopic detection device is arranged on the device, when the expansion joint of the corrugated pipe deforms, the first rotating shaft connecting seat and the second rotating shaft connecting seat can respectively rotate on the first fixing seat and the second fixing seat through the matching of the rotating shaft and the rotating bearing, the two ends of the telescopic detection device are respectively rotatably connected with the first rotating shaft connecting seat and the second rotating shaft connecting seat, the telescopic rod in the telescopic detection device can freely stretch and contract in the first telescopic cavity pipe and the second telescopic cavity pipe to adapt to the deformation of the expansion joint of the corrugated pipe, the two ends of the telescopic detection device can move along with the change of the positions of the first rotating shaft connecting seat and the second rotating shaft connecting seat, the inner cavity of the first telescopic cavity pipe is a circular hole, the first limit block at the left end of the telescopic rod is cylindrical, the inner cavity of the second telescopic cavity pipe is a square hole, and the second limit block at the right end of the telescopic rod is quadrangular, when not influencing the telescopic link and wrench movement along with bellows expansion joint wrench movement, temperature and humidity sensor and heat conduction copper pipe can keep towards the bellows expansion joint, and the deformation that four scalable detection device adaptation bellows expansion joint that can be fine takes place in daily use avoids causing the influence to the testing effect because of the deformation of expansion joint.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a front cross-sectional view of the retractable detecting device of the present invention;

FIG. 3 is a left side view of the present invention;

fig. 4 is a schematic view showing the connection of the bellows expansion joint, the first heat supply pipe and the second heat supply pipe according to the present invention.

In the figure: 100. a bellows expansion joint; 110. a first flange plate; 120. a second flange plate; 210. a first heat supply pipe; 211. a third flange plate; 220. a second heat supply pipe; 221. a fourth flange plate; 310. a first fixed seat; 320. a second fixed seat; 401. fixing the bottom plate; 402. a rotating shaft; 403. a rotating bearing; 404. a connecting seat; 410. a first rotating shaft connecting seat; 420. a second rotating shaft connecting seat; 500. a retractable detection device; 510. a first telescoping lumen tube; 511. a first spacing collar; 520. a telescopic rod; 521. a first stopper; 522. a second limiting block; 530. a second telescoping lumen tube; 531. a second limit ring; 540. a temperature and humidity sensor; 550. a heat pipe means; 551. a first connecting copper column; 552. a second connecting copper column; 553. heat conducting copper pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides an expansion joint leakage detection device in heat supply pipeline, includes bellows expansion joint 100, bellows expansion joint 100's the left and right sides both ends are equipped with first ring flange 110 and second ring flange 120 respectively, first ring flange 110 is connected with third ring flange 211, third ring flange 211 is fixed to be set up in the right-hand member of first heat supply pipe 210, the right-hand member and the fourth ring flange 221 of second ring flange 120 are connected, fourth ring flange 221 is fixed to be set up in the left end of second heat supply pipe 220, first ring flange 110 with there is first fixing base 310 through the bolt fastening on third ring flange 211, second ring flange 120 with there is second fixing base 320 through the bolt fastening on fourth ring flange 221, install first axis of rotation connecting seat 410 and second axis of rotation connecting seat 420 on first fixing base 310 with respectively on the second fixing base 320, first axis of rotation connecting seat 410 with rotate jointly on the second axis of rotation connecting seat 420 and be connected with scalable detection device 500.

In this embodiment: comprises a corrugated pipe expansion joint 100, a first flange plate 110 and a second flange plate 120 are respectively arranged at the left end and the right end of the corrugated pipe expansion joint 100, the first flange plate 110 is connected with a third flange plate 211, the third flange plate 211 is fixedly arranged at the right end of the first heat supply pipe 210, the right end of the second flange 120 is connected with a fourth flange 221, the fourth flange 221 is fixedly arranged at the left end of the second heat supply pipe 220, the first flange plate 110 and the third flange plate 211 are fixed with a first fixed seat 310 through bolts, the second flange 120 and the fourth flange 221 are fixed with a second fixed seat 320 through bolts, a first rotation axis connection seat 410 and a second rotation axis connection seat 420 are respectively installed on the first fixing seat 310 and the second fixing seat 320, the first rotation axis connection seat 410 and the second rotation axis connection seat 420 are jointly and rotatably connected with a telescopic detection device 500.

Specifically, first axis of rotation connecting seat 410 with second axis of rotation connecting seat 420 all includes PMKD 401, PMKD 401 fixed mounting be in first fixing base 310 or on the second fixing base 320, last fixed mounting of PMKD 401 has axis of rotation 402, the outer wall and the fixed joint of rolling bearing 403 inner wall of axis of rotation 402, rolling bearing 403 outer wall and the fixed joint of inner chamber of connecting seat 404, connecting seat 404 with scalable detection device 500 rotates to be connected, through axis of rotation 402 and rolling bearing 403 cooperation, can make first axis of rotation connecting seat 410 and second axis of rotation connecting seat 420 can adapt to the displacement removal of first fixing base 310 and second fixing base 320.

Specifically, the telescopic detection device 500 includes a first telescopic cavity tube 510, an inner cavity of the first telescopic cavity tube 510 is inserted with a telescopic rod 520, the other end of the telescopic rod 520 is inserted into a second telescopic cavity tube 530, a first limiting ring 511 is fixedly arranged at the right end of the first telescopic cavity tube 510, a second limiting ring 531 is fixedly arranged at the left end of the second telescopic cavity tube 530, a first limiting block 521 and a second limiting block 522 are fixedly arranged at the left end and the right end of the telescopic rod 520, a temperature and humidity sensor 540 is fixedly arranged at the center position of the telescopic rod 520, the telescopic rod 520 is positioned at the left side and the right side of the temperature and humidity sensor 540, a heat pipe device 550 is further arranged at one side close to the bellows expansion joint 100, the first limiting block 521 is matched with the first limiting ring 511, the second limiting block is matched with the second limiting ring 531 to prevent the telescopic rod 520 from falling out of the first telescopic cavity tube 510 and the second telescopic cavity tube 520, because the both ends of scalable detection device 500 are connected with first axis of rotation connecting seat 410 and second axis of rotation connecting seat 420 respectively, and the telescopic link 520 among scalable detection device 500 can freely stretch out and draw back the deformation that adapts to bellows expansion joint 100 in first flexible chamber pipe 510 and the flexible chamber pipe 530 of second, through the humiture change in the temperature and humidity sensor 540 response soil to in time discover the cracked condition of expansion joint.

Specifically, heat pipe device 550 includes first connection copper post 551 and second connection copper post 552, and first connection copper post 551 and second connection copper post 552 keep away from the one end of telescopic link 520 is connected with heat conduction copper pipe 553, heat conduction copper pipe 553 with temperature and humidity sensor 540's temperature sensing connects fixedly, can absorb the hydrothermal temperature in the soil of soaking through heat conduction copper pipe 553 for temperature sensor 540's temperature sensing connects and senses the temperature variation, and the cooperation humidity sensing connects, in time discovers the rupture fault condition of expansion joint.

Specifically, the inner cavity of the first telescopic cavity tube 510 is a circular hole, the first limit block 521 at the left end of the telescopic rod 520 is cylindrical, the inner cavity of the second telescopic cavity tube 530 is a square hole, the second limit block 522 at the right end of the telescopic rod 520 is quadrangular, when the telescopic rod 520 is twisted along with the corrugated expansion joint 100, the temperature and humidity sensor 540 and the heat conducting copper tube 553 can keep facing the corrugated expansion joint 100, and the telescopic rod 520 is prevented from rotating too much or even turning over in the use process, so that the detection effect is influenced.

Specifically, the number of the first rotating shaft connecting seat 410, the second rotating shaft connecting seat 420 and the retractable detection device 500 is four, and the first rotating shaft connecting seat, the second rotating shaft connecting seat and the retractable detection device are respectively fixed at the front, the rear, the upper and the lower parts of the device, so that the detection effect is ensured.

The working principle and the using process of the invention are as follows: the retractable detection device 500 is installed in the front, rear, upper and lower directions of the device, when the bellows expansion joint 100 is deformed, the first rotating shaft connection seat 410 and the second rotating shaft connection seat 420 can rotate on the first fixing seat 310 and the second fixing seat 320 respectively through the cooperation of the rotating shaft 402 and the rotating bearing 403, because two ends of the retractable detection device 500 are rotatably connected with the first rotating shaft connection seat 410 and the second rotating shaft connection seat 420 respectively, and the retractable rod 520 in the retractable detection device 500 can freely extend and retract in the first retractable cavity tube 510 and the second retractable cavity tube 530 to adapt to the deformation of the bellows expansion joint 100, the two ends of the retractable detection device 500 can move along with the change of the positions of the first rotating shaft connection seat 410 and the second rotating shaft connection seat 420, the inner cavity of the first retractable cavity tube 510 is a circular hole, the first limiting block 521 at the left end of the retractable rod 520 is cylindrical, the inner chamber of the second telescopic cavity tube 530 is a square hole, the second limiting block 522 at the right end of the telescopic rod 520 is quadrangular, the telescopic rod 520 is not influenced to twist along with the corrugated pipe expansion joint 100, the temperature and humidity sensor 540 and the heat conducting copper tube 553 can keep facing the corrugated pipe expansion joint 100, the four telescopic detection devices 500 can be well adapted to the deformation of the corrugated pipe expansion joint 100 in daily use, when the corrugated pipe expansion joint 100 breaks, hot water in a heat supply pipeline flows out, the heat conducting copper tube 553 can absorb the temperature of the hot water immersed in the soil, after the temperature and humidity sensor 540 senses the temperature change of the hot water in the soil and the temperature change of the heat conducting copper tube 553, the fault information can be transmitted to a ground control center through a connecting line, so that the broken fault condition of the expansion joint can be found in time.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides an expansion joint leakage detection device in heat supply pipeline which characterized in that: the corrugated pipe heat exchanger comprises a corrugated pipe expansion joint (100), wherein a first flange plate (110) and a second flange plate (120) are respectively arranged at the left end and the right end of the corrugated pipe expansion joint (100), the first flange plate (110) is connected with a third flange plate (211), the third flange plate (211) is fixedly connected with a first heat supply pipe (210), the second flange plate (120) is connected with a fourth flange plate (221), the fourth flange plate (221) is fixedly connected with a second heat supply pipe (220), a first fixing seat (310) is fixed on the first flange plate (110) and the third flange plate (211) through bolts, a second fixing seat (320) is fixed on the second flange plate (120) and the fourth flange plate (221) through bolts, and a first rotating shaft connecting seat (410) and a second rotating shaft connecting seat (420) are respectively arranged on the first fixing seat (310) and the second fixing seat (320), the first rotating shaft connecting seat (410) and the second rotating shaft connecting seat (420) are connected with a telescopic detection device (500) in a rotating mode.

2. The apparatus of claim 1, wherein the expansion joint leakage detection device comprises: first axis of rotation connecting seat (410) with second axis of rotation connecting seat (420) all includes PMKD (401), PMKD (401) fixed mounting be in first fixing base (310) or on second fixing base (320), install axis of rotation (402) on PMKD (401), the other end and rolling bearing (403) joint of axis of rotation (402), rolling bearing (403) fixed mounting is in the inner chamber of connecting seat (404), connecting seat (404) with scalable detection device (500) are connected.

3. The apparatus of claim 1, wherein the expansion joint leakage detection device comprises: scalable detection device (500) include first flexible chamber pipe (510), the inner chamber of first flexible chamber pipe (510) is pegged graft and is had telescopic link (520), the other end of telescopic link (520) is inserted in the flexible chamber pipe of second (530), first flexible chamber pipe (510), the flexible chamber pipe of second (530) are realized just through first spacing collar (511), second spacing collar (531) respectively telescopic link (520) spacing, avoid telescopic link (520) deviate from first flexible chamber pipe (510), the flexible chamber pipe of second (530), the central point of telescopic link (520) puts fixed mounting and has temperature and humidity sensor (540), telescopic link (520) are located the position of the left and right sides of temperature and humidity sensor (540), and heat pipe device (550) are still installed to its one side that is close to bellows expansion joint (100).

4. The apparatus of claim 3, wherein the expansion joint leakage detection device comprises: the heat conduction pipe device (550) comprises a first connection copper column (551) and a second connection copper column (552), one end, far away from the telescopic rod (520), of the first connection copper column (551) and the second connection copper column (552) is connected with a heat conduction copper pipe (553), and the heat conduction copper pipe (553) is fixed with a temperature sensing joint of the temperature and humidity sensor (540).

5. The apparatus of claim 3, wherein the expansion joint leakage detection device comprises: the inner cavity of the first telescopic cavity tube (510) is a circular hole, the first limiting block (521) at the left end of the telescopic rod (520) is cylindrical, the inner cavity of the second telescopic cavity tube (530) is a square hole, and the second limiting block (522) at the right end of the telescopic rod (520) is quadrangular.

6. The apparatus of claim 1, wherein the expansion joint leakage detection device comprises: the number of the first rotating shaft connecting seats (410), the number of the second rotating shaft connecting seats (420) and the number of the telescopic detection devices (500) are four, and the first rotating shaft connecting seats, the second rotating shaft connecting seats and the telescopic detection devices are symmetrically fixed at the front, the rear, the upper and the lower parts of the device respectively.

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