CN202008428U - Negative pressure testing device for pipeline - Google Patents
Negative pressure testing device for pipeline Download PDFInfo
- Publication number
- CN202008428U CN202008428U CN2011200319004U CN201120031900U CN202008428U CN 202008428 U CN202008428 U CN 202008428U CN 2011200319004 U CN2011200319004 U CN 2011200319004U CN 201120031900 U CN201120031900 U CN 201120031900U CN 202008428 U CN202008428 U CN 202008428U
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- Prior art keywords
- pipe
- valve
- negative pressure
- air valve
- tested pipeline
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Abstract
The utility model discloses a negative pressure testing device for a pipeline, which is connected with the tested pipeline and comprises a vacuum pump, a vacuumizing connection tube, an air inlet valve, a vacuum meter, an air valve and a connection hose, wherein the vacuum pump is connected with one end of the air inlet valve through the vacuumizing connection tube; the other end of the air inlet valve, the vacuum meter and one end of the air valve are mutually connected; the air inlet valve, the vacuum meter and the air valve are mutually communicated; and the other end of the air valve is connected with the to-be-tested pipeline through the connection hose. The testing device has a simple structure and is convenient in operation, higher in testing efficiency and relatively precise in test results.
Description
Technical field
The utility model relates to a kind of pipe negative pressure proving installation, particularly relates to a kind of negative pressure device of testing conduit sealing property.
Background technology
In the pipe fitting production run, whether the sealing property of detection pipeline complies with the national standard requirements is necessary link.At present, what the producer of great majority production pipe fitting adopted in this checking link is that the manually-operated piston type vacuumizes mode, complicated operation, and poor stability, efficiency ratio is lower, and testing result is easy to generate error.
The utility model content
The technical problems to be solved in the utility model provides a kind of pipe negative pressure proving installation, and simple in structure, easy to operate, testing efficiency is higher, and test result is more accurate.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of pipe negative pressure proving installation, be connected with tested pipeline, it comprises vacuum pump, vacuumize connecting pipe, gas admittance valve, vacuum meter, air valve, connection flexible pipe, described vacuum pump vacuumizes the end that connecting pipe is connected in described gas admittance valve by described, one end of the other end of described gas admittance valve, vacuum meter, air valve interconnects, described gas admittance valve, vacuum meter, air valve mutual conduction, the other end of described air valve is connected in tested pipeline by described connection flexible pipe.
Principle of work of the present utility model is:
Tested pipeline is connected in the connection flexible pipe, open gas admittance valve and air valve, start vacuum pump tested pipeline is vacuumized, close gas admittance valve after meeting the requirements of vacuum tightness, and the observation vacuum meter has no change after the pressurize stipulated time, learns the sealing property situation of tested pipeline.
As improvement, the utility model also comprises negative-pressure cup, and described gas admittance valve, vacuum meter, air valve interconnect and conducting by described negative-pressure cup.
The utility model can be done further improvement, promptly also comprises worktable, and described negative-pressure cup and tested pipeline all place on the described worktable.
The utility model also can be done further improvement, and promptly described worktable is provided with the frame that is fixedly clamped, and the described frame that is fixedly clamped is used for fixing described connecting pipe, connection flexible pipe and the tested pipeline of vacuumizing.
Preferably, described pipe negative pressure proving installation comprises a plurality of air valves and connects flexible pipe.
Therefore compared with prior art, the utility model has following beneficial effect:
With tested pipeline be connected in connect flexible pipe after, just can utilize the utility model to carry out the seal for pipe joints performance test, simple in structure, easy to operate, guaranteed that pipeline connects the checking demand of air-tightness, and saved a lot of manually-operateds, so testing efficiency is higher; In addition, because avoided artificial subjective factor, test result is more accurate.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Be illustrated in figure 1 as the embodiment of a kind of pipe negative pressure proving installation described in the utility model, be connected with tested pipeline 2, it comprises vacuum pump 8, vacuumize connecting pipe 1, gas admittance valve 3, vacuum meter 4, air valve 5, connect flexible pipe 7, vacuum pump 8 is connected in an end of gas admittance valve 3 by vacuumizing connecting pipe 1, one end of the other end of gas admittance valve 3, vacuum meter 4, air valve 5 interconnects, gas admittance valve 3, vacuum meter 4, air valve 5 mutual conduction, the other end of air valve 5 is connected in tested pipeline 2 by connecting flexible pipe 7.
During test, tested pipeline 2 is connected in connection flexible pipe 7, open gas admittance valve 3 and air valve 5, start 8 pairs of tested pipelines 2 of vacuum pump and vacuumize, close gas admittance valve 3 after meeting the requirements of vacuum tightness, vacuum meter 4 is observed in pressurize a period of time (standard code) back no change, learn the sealing property situation of tested pipeline 2: if vacuum meter 4 does not change or changes smaller, in the standard tolerance band, prove that the sealing property of tested pipeline 2 is better, meet the requirements; If the variation of vacuum meter 4 is bigger, exceed the standard tolerance band, the sealing property that proves tested pipeline 2 is not fine, undesirable.
As improvement, present embodiment also comprises negative-pressure cup 10, and gas admittance valve 3, vacuum meter 4, air valve 5 interconnect and conducting by negative-pressure cup 10, and test operation is more convenient like this, and negative-pressure cup 10 can make whole pipe system pressure stability, and test data is more accurate.
Present embodiment also includes worktable 9, and negative-pressure cup 10 and tested pipeline 2 all place on the worktable 9, and test operation is convenient like this.
Present embodiment also can be done further improvement, and promptly worktable 9 is provided with the frame 6 that is fixedly clamped, and the frame 6 that is fixedly clamped is used for fixing tested pipeline 2, can avoid the people to produce the temperature difference with contacting of tested pipeline like this, influences test result.
During practical operation, the utility model includes a plurality of air valves 5 and connects flexible pipe 7, can test a plurality of steel pipes simultaneously like this, and is very practical and convenient, and in present embodiment, air valve 5 and connection flexible pipe 7 are two.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. pipe negative pressure proving installation, be connected with tested pipeline, it is characterized in that: comprise vacuum pump, vacuumize connecting pipe, gas admittance valve, vacuum meter, air valve, connection flexible pipe, described vacuum pump vacuumizes the end that connecting pipe is connected in described gas admittance valve by described, one end of the other end of described gas admittance valve, vacuum meter, air valve interconnects, described gas admittance valve, vacuum meter, air valve mutual conduction, the other end of described air valve is connected in tested pipeline by described connection flexible pipe.
2. pipe negative pressure proving installation according to claim 1 is characterized in that: also comprise negative-pressure cup, described gas admittance valve, vacuum meter, air valve interconnect and conducting by described negative-pressure cup.
3. pipe negative pressure proving installation according to claim 2 is characterized in that: also comprise worktable, described negative-pressure cup and tested pipeline all place on the described worktable.
4. pipe negative pressure proving installation according to claim 3 is characterized in that: described worktable is provided with the frame that is fixedly clamped, and the described frame that is fixedly clamped is used for fixing described tested pipeline.
5. pipe negative pressure proving installation according to claim 1 is characterized in that: described pipe negative pressure proving installation comprises a plurality of air valves and connects flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200319004U CN202008428U (en) | 2011-01-30 | 2011-01-30 | Negative pressure testing device for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200319004U CN202008428U (en) | 2011-01-30 | 2011-01-30 | Negative pressure testing device for pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202008428U true CN202008428U (en) | 2011-10-12 |
Family
ID=44750088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200319004U Expired - Lifetime CN202008428U (en) | 2011-01-30 | 2011-01-30 | Negative pressure testing device for pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202008428U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034494A (en) * | 2014-06-12 | 2014-09-10 | 渤海船舶重工有限责任公司 | Method for vacuum pressure testing of oil return pipe of ship main engine |
| CN105158075A (en) * | 2015-06-26 | 2015-12-16 | 江苏星鑫工程管道有限公司 | Negative pressure testing apparatus for steel pipe |
| CN106197898A (en) * | 2016-08-23 | 2016-12-07 | 无锡隆盛科技股份有限公司 | A kind of hot junction electric EGR valve water channel vacuum leak hunting method |
| CN106468788A (en) * | 2015-08-20 | 2017-03-01 | 致茂电子(苏州)有限公司 | Battery detection of negative pressure system |
| CN108501410A (en) * | 2018-04-25 | 2018-09-07 | 成都龙之泉科技股份有限公司 | It is a kind of to roll vacuum extractor for CIPP hose materials |
-
2011
- 2011-01-30 CN CN2011200319004U patent/CN202008428U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034494A (en) * | 2014-06-12 | 2014-09-10 | 渤海船舶重工有限责任公司 | Method for vacuum pressure testing of oil return pipe of ship main engine |
| CN105158075A (en) * | 2015-06-26 | 2015-12-16 | 江苏星鑫工程管道有限公司 | Negative pressure testing apparatus for steel pipe |
| CN106468788A (en) * | 2015-08-20 | 2017-03-01 | 致茂电子(苏州)有限公司 | Battery detection of negative pressure system |
| CN106468788B (en) * | 2015-08-20 | 2019-12-17 | 致茂电子(苏州)有限公司 | battery negative pressure detection system |
| CN106197898A (en) * | 2016-08-23 | 2016-12-07 | 无锡隆盛科技股份有限公司 | A kind of hot junction electric EGR valve water channel vacuum leak hunting method |
| CN108501410A (en) * | 2018-04-25 | 2018-09-07 | 成都龙之泉科技股份有限公司 | It is a kind of to roll vacuum extractor for CIPP hose materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111012 |
|
| CX01 | Expiry of patent term |