CN104792624A - Type test water system - Google Patents
Type test water system Download PDFInfo
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- CN104792624A CN104792624A CN201510237231.9A CN201510237231A CN104792624A CN 104792624 A CN104792624 A CN 104792624A CN 201510237231 A CN201510237231 A CN 201510237231A CN 104792624 A CN104792624 A CN 104792624A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NS4wJyBoZWlnaHQ9Jzg1LjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PScxMy4zJyB5PSc1My42JyBjbGFzcz0nYXRvbS0wJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojRTg0MjM1JyA+SDwvdGV4dD4KPHRleHQgeD0nMjguMicgeT0nNjIuOScgY2xhc3M9J2F0b20tMCcgc3R5bGU9J2ZvbnQtc2l6ZToxNXB4O2ZvbnQtc3R5bGU6bm9ybWFsO2ZvbnQtd2VpZ2h0Om5vcm1hbDtmaWxsLW9wYWNpdHk6MTtzdHJva2U6bm9uZTtmb250LWZhbWlseTpzYW5zLXNlcmlmO3RleHQtYW5jaG9yOnN0YXJ0O2ZpbGw6I0U4NDIzNScgPjI8L3RleHQ+Cjx0ZXh0IHg9JzM1LjAnIHk9JzUzLjYnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6MjNweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5PPC90ZXh0Pgo8L3N2Zz4K O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
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- 229910001141 Ductile iron Inorganic materials 0.000 description 6
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 2
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NS4wJyBoZWlnaHQ9Jzg1LjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PSczNS4wJyB5PSc1My42JyBjbGFzcz0nYXRvbS0wJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojM0I0MTQzJyA+RjwvdGV4dD4KPHRleHQgeD0nNTEuMCcgeT0nNTMuNicgY2xhc3M9J2F0b20tMCcgc3R5bGU9J2ZvbnQtc2l6ZToyM3B4O2ZvbnQtc3R5bGU6bm9ybWFsO2ZvbnQtd2VpZ2h0Om5vcm1hbDtmaWxsLW9wYWNpdHk6MTtzdHJva2U6bm9uZTtmb250LWZhbWlseTpzYW5zLXNlcmlmO3RleHQtYW5jaG9yOnN0YXJ0O2ZpbGw6IzNCNDE0MycgPmU8L3RleHQ+Cjwvc3ZnPgo= [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention discloses a type test water system which comprises a head water tank, a water pump, a pressure regulating valve, a check valve, a pressure solenoid valve, an exhaust solenoid valve, a pressure manual ball valve, a water-filling ball valve, a socket plug, a bellmouth plug and a PLC, wherein the head water tank, the water pump, the pressure regulating valve, the check valve, the pressure solenoid valve and the pressure manual ball valve are sequentially connected with one another by virtue of pipelines; the other end of the pressure manual ball valve is connected to the bellmouth plug; a water pressure transducer is arranged on a pipeline between the pressure manual ball valve and the bellmouth plug; one end of the exhaust solenoid valve is connected with the head water tank, and the other end of the exhaust solenoid valve is connected to the pipeline between the pressure manual ball valve and the bellmouth plug; the pressure solenoid valve, the exhaust solenoid valve and the water pressure transducer are electrically connected to the PLC; one end of the water-filling ball valve is connected with a low-pressure water source, and the other end of the water-filling ball valve is connected with the socket plug; and the socket plug and the bellmouth plug are arranged in a corresponding manner. According to the water system, an internal recycling positive pressure test of cast tubes is automatically finished by adopting the PLC, the solenoid valves are taken as actuator elements, the operation is simple, and the response speed is high.
Description
Technical field
The present invention relates to cast tube type approval test device field, be specifically applicable to a kind of type approval test water system of ductile iron pipe type approval test.
Background technology
Ductile iron pipe be the molten casting iron of use more than No. 18 through adding after modulizer, through the fluid origin tubing of centrifugal ductile pig machine high speed centrifugation, referred to as bulb, ductile iron pipe and ductile iron pipe etc.Being mainly used in the conveying of tap water, is the desirable selection materials of water supply pipe.
All point out that spheroidal-graphite cast iron interface tube newly developed all needs to carry out interface type approval test, to verify the reliability of interface in the standards such as GB/T 13295-2013, EN545:2010.Is exactly equipment for ductile iron pipe type approval test as shown in notification number CN 103278394 A " combined test apparatus of a kind of body sealing joint and hydraulic circulation " and document " development of cast tube type approval test machine ".Test water system is exactly the water system realizing interface test based on the said equipment.
Existing type approval test water system generally adopts the mode suppressing cylinder to carry out the test of inner loop normal pressure, and this water system exists defects such as suppressing cylinder is corresponding slowly, complicated operation.
Summary of the invention
The object of the present invention is to provide a kind of type approval test water system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of type approval test water system, comprise elevated tank, water pump, pressure-regulating valve, non-return valve, suppress solenoid valve, exhaust solenoid valve, suppress manual ball valve, water-filling ball valve, socket plug, bellmouth plug and PLC, elevated tank, water pump, pressure-regulating valve, non-return valve, suppress solenoid valve and suppress manual ball valve and be connected successively by pipeline, the other end suppressing manual ball valve is connected to bellmouth plug, the pipeline suppressed between manual ball valve and bellmouth plug is provided with hydraulic pressure transmitter, exhaust solenoid valve one end connects elevated tank, the other end is connected on the pipeline suppressed between manual ball valve and bellmouth plug, suppress solenoid valve, exhaust solenoid valve and hydraulic pressure transmitter are all electrically connected PLC, the pressure data of acquisition is sent to PLC by hydraulic pressure transmitter, PLC carries out analyzing and processing to data, and control according to analysis processing result the operation suppressing solenoid valve and exhaust solenoid valve, described water-filling ball valve one end connects low pressure water source, and other end connection socket plug, socket plug and the corresponding interval of bellmouth plug are arranged, and multiple pipeline section joins end to end and is arranged between socket plug and bellmouth plug.
As the further scheme of the present invention: described type approval test water system also comprises exhaust manual ball valve, on the official road of exhaust manual ball valve between elevated tank and exhaust solenoid valve.
As the present invention's further scheme: described water pump is high-pressure plunger pump.
As the present invention's further scheme: described socket plug is provided with tensimeter.
As the present invention's further scheme: described tensimeter is shatter-proof mechanical pressure gauge.
Compared with prior art, the invention has the beneficial effects as follows: 1, this water system adopts PLC automatically to complete the inner loop normal pressure test of cast tube, adopt hydraulic pressure transmitter as hydraulic pressure detecting element, adopt solenoid valve as executive component, operation steps is simple, fast response time, work efficiency is high, substantially increases test speed; 2, this water system structure is simple, is easy to promote, and reliable operation is practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of type approval test water system.
In figure: 1-elevated tank, 2-water pump, 3-pressure-regulating valve, 4-non-return valve, 5-are vented manual ball valve, 6-suppresses solenoid valve, 7-exhaust solenoid valve, 8-suppress manual ball valve, 9-water-filling ball valve, 10-socket plug, 11-tensimeter, 12-pipeline section, 13-hydraulic pressure transmitter, 14-bellmouth plug.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1, a kind of type approval test water system, comprises elevated tank 1, water pump 2, pressure-regulating valve 3, non-return valve 4, exhaust manual ball valve 5, suppress solenoid valve 6, exhaust solenoid valve 7, suppress manual ball valve 8, water-filling ball valve 9, socket plug 10, bellmouth plug 14 and PLC, preferably, described water pump 2 is high-pressure plunger pump, elevated tank 1, water pump 2, pressure-regulating valve 3, non-return valve 4, suppress solenoid valve 6 and suppress manual ball valve 8 and be connected successively by pipeline, the other end suppressing manual ball valve 8 is connected to bellmouth plug 14, the pipeline suppressed between manual ball valve 8 and bellmouth plug 14 is provided with hydraulic pressure transmitter 13, hydraulic pressure transmitter 13 is for monitoring the hydraulic pressure in pipeline, exhaust manual ball valve 5 one end connects elevated tank 1, the other end connects exhaust solenoid valve 7, and the other end of exhaust solenoid valve 7 is connected on the pipeline suppressed between manual ball valve 8 and bellmouth plug 14, suppresses solenoid valve 6, exhaust solenoid valve 7 and hydraulic pressure transmitter 13 are all electrically connected PLC, and the pressure data of acquisition is sent to PLC by hydraulic pressure transmitter 13, and PLC carries out analyzing and processing to data, and control according to analysis processing result the operation suppressing solenoid valve 6 and exhaust solenoid valve 7, described water-filling ball valve 9 one end connects low pressure water source, other end connection socket plug 10, socket plug 10 and the corresponding interval of bellmouth plug 14 are arranged, multiple pipeline section 12 joins end to end and is arranged between socket plug 10 and bellmouth plug 14, socket plug 10 is provided with tensimeter 11, preferably, described tensimeter 11 is shatter-proof mechanical pressure gauge, and tensimeter 11 is for monitoring the hydraulic pressure in socket plug 10.
Principle of work of the present invention is: described type approval test water system, first water-filling ball valve 9 is opened, low-pressure water enters in pipeline section 12 by water-filling ball valve 9 and socket plug 10, after water-filling, close water-filling ball valve 9, manual unlocking is vented manual ball valve 5 and suppresses manual ball valve 8, open water pump 2, start auto-programming, auto-programming is completed by PLC hydrous water pressure transmitter 13, auto-programming action is as follows: close exhaust solenoid valve 7, open and suppress solenoid valve 6, water under high pressure in elevated tank 1 is by water pump 2, pressure-regulating valve 3, non-return valve 4, suppress solenoid valve 6, suppress manual ball valve 8 and bellmouth plug 14 pairs of pipeline sections 12 are suppressed, until pressure increases to PMA bar, solenoid valve 6 is suppressed in closedown, keep pressure 5s, then opening exhaust solenoid valve 7 makes Pressure Drop to (PMA-5) bar, close exhaust solenoid valve 7, pressurize 5s, then open and suppress solenoid valve 6, suppress to PMA bar to pipeline section 12, solenoid valve 6 is suppressed in closedown, pressurize 5s.So repeatedly complete process of the test 24000 times.
Described type approval test water system adopts PLC automatically to complete the inner loop normal pressure test of cast tube, adopts hydraulic pressure transmitter as hydraulic pressure detecting element, adopts solenoid valve as executive component, operation steps is simple, fast response time, work efficiency is high, substantially increases test speed; Described type approval test water system structure is simple, is easy to promote, reliable operation.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (5)
1. a type approval test water system, is characterized in that, comprises elevated tank (1), water pump (2), pressure-regulating valve (3), non-return valve (4), suppress solenoid valve (6), exhaust solenoid valve (7), suppress manual ball valve (8), water-filling ball valve (9), socket plug (10), bellmouth plug (14) and PLC, elevated tank (1), water pump (2), pressure-regulating valve (3), non-return valve (4), suppress solenoid valve (6) and suppress manual ball valve (8) and be connected successively by pipeline, the other end suppressing manual ball valve (8) is connected to bellmouth plug (14), the pipeline suppressed between manual ball valve (8) and bellmouth plug (14) is provided with hydraulic pressure transmitter (13), exhaust solenoid valve (7) one end connects elevated tank (1), the other end is connected on the pipeline suppressed between manual ball valve (8) and bellmouth plug (14), suppresses solenoid valve (6), exhaust solenoid valve (7) and hydraulic pressure transmitter (13) are all electrically connected PLC, the pressure data of acquisition is sent to PLC by hydraulic pressure transmitter (13), PLC carries out analyzing and processing to data, and controls according to analysis processing result the operation suppressing solenoid valve (6) and exhaust solenoid valve (7), described water-filling ball valve (9) one end connects low pressure water source, other end connection socket plug (10), socket plug (10) and bellmouth plug (14) corresponding interval are arranged, and multiple pipeline section (12) joins end to end and is arranged between socket plug (10) and bellmouth plug (14).
2. type approval test water system according to claim 1, it is characterized in that, described type approval test water system also comprises exhaust manual ball valve (5), and exhaust manual ball valve (5) is positioned on the official road between elevated tank (1) and exhaust solenoid valve (7).
3. type approval test water system according to claim 2, is characterized in that, described water pump (2) is high-pressure plunger pump.
4. the type approval test water system according to claim 1 or 2 or 3, is characterized in that, described socket plug (10) is provided with tensimeter (11).
5. type approval test water system according to claim 4, is characterized in that, described tensimeter (11) is shatter-proof mechanical pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237231.9A CN104792624A (en) | 2015-05-12 | 2015-05-12 | Type test water system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510237231.9A CN104792624A (en) | 2015-05-12 | 2015-05-12 | Type test water system |
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| CN104792624A true CN104792624A (en) | 2015-07-22 |
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| CN201510237231.9A Pending CN104792624A (en) | 2015-05-12 | 2015-05-12 | Type test water system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223082A (en) * | 2015-11-03 | 2016-01-06 | 重庆通赛机电有限公司 | The empty hydrogen cooler pressure device of a kind of generator |
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| CN201876390U (en) * | 2010-11-11 | 2011-06-22 | 无锡昌华机电制造有限公司 | Automatic control system for water pressure test of cylinder in water jacket method |
| CN202631230U (en) * | 2012-04-06 | 2012-12-26 | 中电普瑞科技有限公司 | Test device used for water pipe connector |
| CN103616405A (en) * | 2013-11-21 | 2014-03-05 | 苏州科技学院 | Detection device of buried pipe system of ground source heat pump |
| CN203798681U (en) * | 2014-04-15 | 2014-08-27 | 北京国彬信诚科技有限公司 | Hydraulic pipe strength test system |
| CN104568596A (en) * | 2015-01-08 | 2015-04-29 | 江苏中宏机械制造有限公司 | Full-automatic gas bottle inner-measurement hydraulic testing device |
| CN204807398U (en) * | 2015-05-12 | 2015-11-25 | 新兴河北工程技术有限公司 | Type test water system |
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