CN203549245U - Directly-buried internal-and-external-pressure automatic-alarming corrugated expansion joint - Google Patents
Directly-buried internal-and-external-pressure automatic-alarming corrugated expansion joint Download PDFInfo
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- CN203549245U CN203549245U CN201320610091.1U CN201320610091U CN203549245U CN 203549245 U CN203549245 U CN 203549245U CN 201320610091 U CN201320610091 U CN 201320610091U CN 203549245 U CN203549245 U CN 203549245U
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- pipe
- bellows
- expansion joint
- alarming
- corrugated
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Abstract
The utility model discloses a directly-buried internal-and-external-pressure automatic-alarming corrugated expansion joint, which comprises a shell, a corrugated pipe, an end pipe and a telescopic pipe. An improvement is that the corrugated pipe is formed by connecting working corrugated pipes and partitioning corrugated pipes with the same parameter in series, connecting pipes are arranged at opposite ends, an alarming pipe is arranged on each connecting pipe, and the outer end of the alarming pipe is connected with a matching valve, a matching pressure gauge and a matching sensor for a system. The expansion joint is used for urban heat-supply pipe networks, on-the-spot monitoring and remote-monitoring alarming can be realized, the expansion joint is convenient to maintain, the service life is prolonged, the operating cost is greatly lowered, the economic benefit is improved, and the expansion joint is favorable to environmental protection.
Description
Technical field
The utility model relates to expansion joint for pipeline, especially a kind of for external pressure automatic alarm corrugated expansion joint in the direct-burried of city thermal pipe network.
Background technique
When city directly buried heating pipeline system delivering vapor, hot water or high-temperature water medium, because pipeline is affected by medium temperature to form to expand with heat and contract with cold, generally adopt common direct-burried corrugated expansion joint compensate for displacement.Common direct-burried corrugated expansion joint mainly consists of shell, bellows and connecting end pipe, does not have monitoring alarm function.Underground owing to being embedded in, once bellows stress fatigue lost efficacy, occur leaking; cannot check and judge particular location and the leakiness of leakage, need whole pipeline trench digging to search, cause large size to stop vapour; affect user and normally produce, economic benefit is low, and affects environmental protection.Once the direct-burried corrugated expansion joint therefore using at present leaks, and cannot check with definite position and just become technical key issue.
Model utility content
The purpose of this utility model is to overcome the deficiency of existing common direct-burried corrugated expansion joint; provide a kind of and can realize monitoring and long-distance monitoring and alarming on the spot, be convenient to safeguard long service life; increase economic efficiency, be conducive to the interior external pressure automatic alarm corrugated expansion joint of direct-burried of environmental protection.
The technical solution of the utility model is: external pressure automatic alarm corrugated expansion joint in direct-burried, comprise housing, bellows, end pipe, telescopic pipe, guide sleeve, its improvements are that described bellows is composed in series by the identical work bellows of parameter and partition bellows, both are provided with connecting tube in opposite end, connecting tube is provided with the pipe of reporting to the police, the pipe of reporting to the police is inner to communicate with connecting tube inner chamber, outer end is connected with system adapted valve, described work bellows is located in housing, work bellows is connected with housing seal with respect to the one end that cuts off bellows, the work bellows the other end and telescopic pipe are tightly connected, guide sleeve and inner walls are gapped, described partition bellows is connected with connecting tube with respect to one end of work bellows, the other end and telescopic pipe outer wall are tightly connected.
Described warning pipe outer end is connected with pressure gauge or the sensor of system adapted.
Corrugated expansion joint of the present utility model is mainly used in city thermal pipe network, and while normally working, work bellows bears external pressure, cuts off not pressurized of bellows, and the axial displacement of pipeline is compensated.Once work bellows leaks, damages, high temperature media enters work bellows and cuts off bellows inner chamber, the latter bears interior pressure, because both design parameters are identical, cut off bellows and can substitute at random work bellows, make expansion joint continue normal work, life, pipeline is not affected.Now; suitably regulate the valve of the pipe outer end of reporting to the police; by observing steam discharge situation or showing or the automatic detection of sensor by pressure gauge; just can realize monitoring and long-distance monitoring and alarming on the spot, the position that can find very soon expansion joint to damage, is convenient to safeguard and trimming; avoid long-distance pipe excavation; thereby reduction maintenance cost, increases economic efficiency, and is conducive to environmental protection.Through test, the utility model is 2～3 times of existing common direct-burried compensator working life, can save operating cost more than 60%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
See Fig. 1, end pipe 1 is connected with housing 5, work bellows 4 is located in housing, connect with partition bellows 8 by connecting tube 6 in its one end, the other end is connected with the telescopic pipe outer wall through bellows inner chamber, guide sleeve 2 is gapped with inner walls, connecting tube 6 is provided with the pipe 7 of reporting to the police, the pipe of reporting to the police is inner to communicate with connecting tube inner chamber, the valve of outer end and system adapted, pressure gauge (or sensor) is connected, the wave height of above-mentioned two bellowss, the pitch of waves, wave number, wall thickness, the parameters such as material are identical, when valve is fastened, between two bellows inwalls and telescopic pipe, form the closed cavity being communicated with.During this expansion joint work, work bellows 4 bears external pressure, in pressured state, once work bellows leaks, high hot vapour enters in pipe, cuts off bellows 8 and bears interior pressure, in tension state, now observe valve and leak vapour situation, or detect by pressure gauge, sensor, can realize monitoring and long-distance monitoring and alarming on the spot.
Claims (2)
1. external pressure automatic alarm corrugated expansion joint in a direct-burried, comprise housing, bellows, end pipe, telescopic pipe, guide sleeve, it is characterized in that described bellows by the identical work bellows of parameter and cut off bellows being composed in series, both are provided with connecting tube in opposite end, connecting tube is provided with the pipe of reporting to the police, the pipe of reporting to the police is inner to communicate with connecting tube inner chamber, outer end is connected with system adapted valve, described work bellows is located in housing, work bellows is connected with housing seal with respect to the one end that cuts off bellows, the work bellows the other end and telescopic pipe are tightly connected, guide sleeve and inner walls are gapped, described partition bellows is connected with connecting tube with respect to one end of work bellows, the other end and telescopic pipe outer wall are tightly connected.
2. external pressure automatic alarm corrugated expansion joint in direct-burried according to claim 1, is characterized in that: described warning pipe outer end is connected with pressure gauge or the sensor of system adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610091.1U CN203549245U (en) | 2013-09-30 | 2013-09-30 | Directly-buried internal-and-external-pressure automatic-alarming corrugated expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320610091.1U CN203549245U (en) | 2013-09-30 | 2013-09-30 | Directly-buried internal-and-external-pressure automatic-alarming corrugated expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549245U true CN203549245U (en) | 2014-04-16 |
Family
ID=50467361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320610091.1U Expired - Fee Related CN203549245U (en) | 2013-09-30 | 2013-09-30 | Directly-buried internal-and-external-pressure automatic-alarming corrugated expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549245U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486392A (en) * | 2013-09-30 | 2014-01-01 | 江苏百新波纹管有限公司 | Direct burial inside and outside pressure automatic alarming bellow expansion joint |
| CN105114746A (en) * | 2015-09-11 | 2015-12-02 | 江苏中远管道设备有限公司 | Direct-embedded double-bellow expansion joint |
| CN107559527A (en) * | 2017-09-10 | 2018-01-09 | 江苏永力管道有限公司 | The combined sleeve compensator and its intelligent management system of warning device are set |
-
2013
- 2013-09-30 CN CN201320610091.1U patent/CN203549245U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486392A (en) * | 2013-09-30 | 2014-01-01 | 江苏百新波纹管有限公司 | Direct burial inside and outside pressure automatic alarming bellow expansion joint |
| CN105114746A (en) * | 2015-09-11 | 2015-12-02 | 江苏中远管道设备有限公司 | Direct-embedded double-bellow expansion joint |
| CN107559527A (en) * | 2017-09-10 | 2018-01-09 | 江苏永力管道有限公司 | The combined sleeve compensator and its intelligent management system of warning device are set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |