CN203259431U - Alternative positive/negative pressure testing device for plastic pipelines - Google Patents
Alternative positive/negative pressure testing device for plastic pipelines Download PDFInfo
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- CN203259431U CN203259431U CN 201320260081 CN201320260081U CN203259431U CN 203259431 U CN203259431 U CN 203259431U CN 201320260081 CN201320260081 CN 201320260081 CN 201320260081 U CN201320260081 U CN 201320260081U CN 203259431 U CN203259431 U CN 203259431U
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- pipeline
- stop valve
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- tank container
- negative pressure
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 230000002706 hydrostatic effect Effects 0.000 claims description 28
- 238000002474 experimental method Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract 3
- 238000009423 ventilation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses an alternative positive/negative pressure testing device for plastic pipelines, belonging to the technical field of pipeline pressure-bearing testing devices. The alternative positive/negative pressure testing device comprises a tank container, wherein the tank container is connected with blind plates through flange plates; two ends of a pipeline to be tested extend out of the tank container; the upper end of the pipeline to be tested is respectively connected with a vacuum pump, a compressed air source and a static hydraulic testing machine; the upper end of the pipeline and the top of the tank container are respectively provided with ventilation overflowing ports; the lower end of the pipeline is connected with a discharge port through another pipeline; a circulation system is formed by the low-end pipeline together with the tank container and the static hydraulic testing machine; and each pipeline is provided with a stop valve. According to the alternative positive-negative pressure testing device, by adopting the technique, the positive pressure test and the negative pressure test are combined together, positive pressure load and negative pressure load necessary in the pipeline detection process are provided through the vacuum pump and the static hydraulic testing machine, and furthermore a closed environment of the pipelines and the switchover of the positive pressure load and the negative pressure load in the experiment process are ensured by controlling on-off of corresponding stop valves, then the positive pressure test and the negative pressure test can be carried out, the testing device does not need to be frequently assembled and disassembled as the experiment condition is changed before the experiment is accomplished, and high operability is achieved.
Description
Technical field
The utility model belongs to pipeline bearing experimental apparatus technical field, is specifically related to a kind of plastic conduit of testing and replaces the positive/negative-pressure experimental provision at the plastic conduit that replaces under the positive/negative-pressure load.
Background technology
Along with plastic conduit is popularized gradually in the shipbuilding field, its consumption and application also constantly increase.At present, use the more zone of plastic conduit that inhabitation supply channel, grey black water lines, desalinization pipeline, air-conditioning duct and ballast line etc. are arranged in the ship piping system, wherein the consumption of ballast line is maximum.The applying working condition of ballast line requires pipeline in use to need to bear alternately positive/negative-pressure load, during negative pressure work by pipeline with Seawater inhalation ballast for cruising water tank, by pipeline the seawater of ballast tank is got rid of hull during malleation work.The intensity of plastic conduit is high less than metallic conduit, and therefore being necessary to replace positive/negative pressure tests to guarantee its 50 year serviceable life.
There is not yet at present the report that plastic conduit replaces the positive/negative-pressure experimental provision both at home and abroad and be seen in patent, after can only using first the negative pressure experimental provision to the pipeline test, the dismounting experimental provision, to test and carry out again the malleation test after tubing takes out, in case alternately the frequency is more, the time of dismounting experimental provision, operability was relatively poor considerably beyond the time of pipeline test.
The utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of plastic conduit to replace the positive/negative-pressure experimental provision.
Described a kind of plastic conduit replaces the positive/negative-pressure experimental provision, comprise for the tank container of placing pipe under test, it is characterized in that described tank container two ends are fixedly connected with blind plate by flange plate respectively, the pipe under test two ends pick out outside the tank container by pipeline, its the upper end by pipeline respectively with vacuum pump, compressed air source and hydrostatic experimental machine connect, tank container top and upper end pipeline are respectively equipped with ventilative overflow vent I and ventilative overflow vent II, the lower end connects bleed outlet by pipeline, described lower end pipeline and tank container, hydrostatic experimental machine forms circulating system, and described pipeline is provided with stop valve.
Described a kind of plastic conduit replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline of upper end tensimeter being set.
Described a kind of plastic conduit replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at hydrostatic experimental machine two ends stop valve VI and stop valve VIII being set respectively.
Described a kind of plastic conduit replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at vacuum pump two ends stop valve I and stop valve II being set respectively, and nearly compressed air source one side arranges the stop valve III on the described pipeline.
Described a kind of plastic conduit replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at ventilative overflow vent II, ventilative overflow vent I place stop valve IV and stop valve V being set respectively.
Described a kind of plastic conduit replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at bleed outlet place the stop valve VII being set.
Above-mentioned a kind of plastic conduit replaces the positive/negative-pressure experimental provision, comprise for the tank container of placing pipe under test, the tank container two ends are fixedly connected with blind plate by flange plate respectively, the pipe under test two ends pick out outside the tank container by pipeline, its the upper end by pipeline respectively with vacuum pump, compressed air source and hydrostatic experimental machine connect, upper end pipeline and tank container top are respectively equipped with ventilative overflow vent II and ventilative overflow vent I, the lower end connects bleed outlet by pipeline, described lower end pipeline and tank container, hydrostatic experimental machine forms circulating system, and described pipeline is provided with stop valve.The utility model is by adopting above-mentioned technology, the pipeline of design replaces the positive/negative-pressure experimental provision, provide the pipe detection process required positive/negative-pressure load by vacuum pump and hydrostatic tester, guarantee the closed environment of pipeline in the experimentation and the switching of positive/negative-pressure load by the folding of controlling corresponding stop valve again, be respectively applied to the test of malleation and negative pressure, it is connected malleation and negative pressure test get up, be placed on the same table apparatus, in experimentation or experiment need not be when changing experiment condition before finishing frequent dismounting experimental provision, have higher operability.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1-stop valve I, 2-stop valve II, 3-stop valve III, 4-stop valve IV, 5-stop valve V, 6-stop valve VI, 7-stop valve VII, 8-tank container, 9-pipe under test, the hydrostatic experimental machine of 10-, 11-vacuum pump, 12-tensimeter, 13-stop valve VIII, 14-blind plate, 15-flange plate, the 16-overflow vent I of breathing freely, the 17-overflow vent II of breathing freely, 18-bleed outlet.
Embodiment
The utility model will be further described below in conjunction with Figure of description:
As shown in Figure 1, a kind of plastic conduit replaces the positive/negative-pressure experimental provision, comprise for the tank container 8 of placing pipe under test 9, described tank container 8 two ends are fixedly connected with blind plate 14 by flange plate 15 respectively, pipe under test 9 two ends pick out outside the tank container 8 by pipeline, its the upper end by pipeline respectively with vacuum pump 11, compressed air source and hydrostatic experimental machine 10 connect, upper end pipeline and tank container 8 tops are respectively equipped with ventilative overflow vent II 17 and ventilative overflow vent I 16, the lower end connects bleed outlet 18 by pipeline, described lower end pipeline and tank container 8, hydrostatic experimental machine 10 forms circulating system, be provided for the tensimeter 12 of test pressure on the pipeline of upper end, for the ease of the control system sealing, the utility model arranges respectively stop valve VI 6 and stop valve VIII 13 on the pipeline at hydrostatic experimental machine 10 two ends; Stop valve I 1 and stop valve II 2 are set respectively on the pipeline at vacuum pump 11 two ends, nearly compressed air source one side arranges stop valve III 3 on the described pipeline, on the pipeline at upper pipes Reuter gas overflow vent II 17, ventilative overflow vent I 16 places, tank container 8 tops stop valve IV 4 and stop valve V 5 are set respectively, on the pipeline at bleed outlet 18 places stop valve VII 7 are set.
Assembling mode according to the device synoptic diagram, the mode that pipe under test 9 is threaded connection is fixed on the blind plate 14 of tank container 8 ends, tank container 8 two ends are used flange plate 15 to be connected with blind plate to carry out flange and are connected the shutoff port, guarantee that it is closed environment, can change pipe under test 9 by the mode that the dismounting flange connects, pipe under test 9 two ends pick out outside the tank container 8 by pipeline, the stop valve XII 7 of leading up to wherein plays liquid (water) and unloads the effect of putting, many pipelines are leaded up to simultaneously and vacuum pump 11 in the top, hydrostatic tester 10 and compressed gas source are connected, the pipeline of top is by stop valve II 2, stop valve III 3, stop valve IV 4 gauge tap can need to be controlled according to the experiment people to guarantee experimentation.
Described vacuum pump 11 and hydrostatic tester 10 are used for providing the pipe detection process required positive/negative-pressure load, guarantee the closed environment of pipeline in the experimentation and the switching of positive/negative-pressure load by the folding of control stop valve I 1, stop valve II 2, stop valve III 3, stop valve IV 4, stop valve V 5, stop valve VI 6, stop valve VII 7 and stop valve VIII 13 again.
As shown in the figure, the course of work of the present utility model is as follows:
Before the experiment beginning, open stop valve V 5, stop valve VI 6, and by 10 pairs of tank container 8 water fillings of hydrostatic tester, after tank container 8 is filled with water, close hydrostatic tester, close simultaneously stop valve V 5;
During the test of pipe under test 9 negative pressure, open stop valve I 1, stop valve II 2, stop valve VI 6, close stop valve III 3, stop valve IV 4, stop valve V 5, stop valve VII 7, stop valve VIII 13, then successively open hydrostatic tester 10 and vacuum pump 11, regulate vacuum tightness and hydrostatic strength according to required experiment condition needs, can be from tensimeter 12 record vacuum tightnesss, from hydrostatic tester 10 record hydrostatic strengths; After the negative pressure test finishes, close vacuum pump 11 and hydrostatic tester 10, open stop valve III 3, stop valve V 5, stop valve VII 7, make air enter pipe under test 9 in the time of pressure in the removal tank container 8, by the time pressure reduces to 0 in the tank container 8, be that stop valve V 5 does not have water to overflow or the hydrostatic tester reading is 0, and be full of air in the pipe under test 9, after tensimeter 12 readings are 0, close stop valve I 1, stop valve II 2, stop valve III 3, stop valve V 5, stop valve VI 6, stop valve VII 7, only open stop valve IV 4, stop valve VIII 13 is opened hydrostatic tester 10, to pipe under test 9 water fillings, until pipe under test 9 is filled with water, be stop valve IV 4 when no longer including bubble and emerging, close stop valve IV 4, suspend simultaneously hydrostatic tester 10.
Pipe under test 9 malleations when test, regulate hydrostatic tester 10 according to requirement of experiment, after being set, experimental pressure opens hydrostatic tester 10, pipe under test 9 is carried out the malleation test; After the malleation test finishes, suspend hydrostatic tester 10, close stop valve VIII 13, open simultaneously stop valve III 3, stop valve IV 4, stop valve VII 7, deadweight by the water in the pipe under test 9 and pipe under test 9 is purged from the pressurized air of stop valve III 3 accesses dewaters, stop after the globule blows out until stop valve VII 7 no longer includes, close stop valve III 3, stop valve IV 4, stop valve VII 7.
The positive/negative-pressure of pipeline replaces experiment condition only need be repeated above-mentioned steps and get final product, and frequent dismounting experimental provision in the time of need not changing experiment condition can easy operation steps, improves testing efficiency.
Claims (6)
1. a plastic conduit replaces the positive/negative-pressure experimental provision, comprise for the tank container (8) of placing pipe under test (9), it is characterized in that described tank container (8) two ends are fixedly connected with blind plate (14) by flange plate (15) respectively, pipe under test (9) two ends pick out outside the tank container (8) by pipeline, its the upper end by pipeline respectively with vacuum pump (11), compressed air source and hydrostatic experimental machine (10) connect, tank container (8) top and upper end pipeline are respectively equipped with ventilative overflow vent I (16) and ventilative overflow vent II (17), the lower end connects bleed outlet (18) by pipeline, described lower end pipeline and tank container (8), hydrostatic experimental machine (10) forms circulating system, and described pipeline is provided with stop valve.
2. a kind of plastic conduit according to claim 1 replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline of upper end tensimeter (12) being set.
3. a kind of plastic conduit according to claim 1 replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at hydrostatic experimental machine (10) two ends stop valve VI (6) and stop valve VIII (13) being set respectively.
4. a kind of plastic conduit according to claim 1 replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at vacuum pump (11) two ends stop valve I (1) and stop valve II (2) being set respectively, nearly compressed air source one side arranges stop valve III (3) on the described pipeline.
5. a kind of plastic conduit according to claim 1 replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at ventilative overflow vent II (17), ventilative overflow vent I (16) place stop valve IV (4) and stop valve V (5) being set respectively.
6. a kind of plastic conduit according to claim 1 replaces the positive/negative-pressure experimental provision, it is characterized in that on the pipeline at bleed outlet (18) place stop valve VII (7) being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320260081 CN203259431U (en) | 2013-05-14 | 2013-05-14 | Alternative positive/negative pressure testing device for plastic pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320260081 CN203259431U (en) | 2013-05-14 | 2013-05-14 | Alternative positive/negative pressure testing device for plastic pipelines |
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| Publication Number | Publication Date |
|---|---|
| CN203259431U true CN203259431U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320260081 Expired - Lifetime CN203259431U (en) | 2013-05-14 | 2013-05-14 | Alternative positive/negative pressure testing device for plastic pipelines |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367432A (en) * | 2017-08-09 | 2017-11-21 | 广州特种承压设备检测研究院 | The ageing test apparatus and life-span prediction method of PE pipelines under a kind of surge pressure |
| CN109387437A (en) * | 2018-11-23 | 2019-02-26 | 丹阳市飞轮气体阀门有限公司 | A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system and test method |
| CN110411843A (en) * | 2019-08-02 | 2019-11-05 | 合肥通用机械研究院有限公司 | A pressure vessel or pipeline air pressure test system and test method |
| CN111504792A (en) * | 2020-04-21 | 2020-08-07 | 中国科学院近代物理研究所 | An accelerator vacuum pipeline strength test device |
| CN114878352A (en) * | 2022-07-08 | 2022-08-09 | 浙江大学 | High-temperature high-pressure hydrostatic strength test equipment and test method thereof |
| RU2805377C1 (en) * | 2023-04-20 | 2023-10-16 | Акционерное общество "Рузаевский завод химического машиностроения" (АО "Рузхиммаш") | System for testing structure of tank container for strength using compression method |
-
2013
- 2013-05-14 CN CN 201320260081 patent/CN203259431U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367432A (en) * | 2017-08-09 | 2017-11-21 | 广州特种承压设备检测研究院 | The ageing test apparatus and life-span prediction method of PE pipelines under a kind of surge pressure |
| CN109387437A (en) * | 2018-11-23 | 2019-02-26 | 丹阳市飞轮气体阀门有限公司 | A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system and test method |
| CN110411843A (en) * | 2019-08-02 | 2019-11-05 | 合肥通用机械研究院有限公司 | A pressure vessel or pipeline air pressure test system and test method |
| CN111504792A (en) * | 2020-04-21 | 2020-08-07 | 中国科学院近代物理研究所 | An accelerator vacuum pipeline strength test device |
| CN114878352A (en) * | 2022-07-08 | 2022-08-09 | 浙江大学 | High-temperature high-pressure hydrostatic strength test equipment and test method thereof |
| RU2805377C1 (en) * | 2023-04-20 | 2023-10-16 | Акционерное общество "Рузаевский завод химического машиностроения" (АО "Рузхиммаш") | System for testing structure of tank container for strength using compression method |
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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: 20131030 |
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| CX01 | Expiry of patent term |