CN204188343U - The pick-up unit of Urea pipe leakage rate and electrical property - Google Patents
The pick-up unit of Urea pipe leakage rate and electrical property Download PDFInfo
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- CN204188343U CN204188343U CN201420625557.XU CN201420625557U CN204188343U CN 204188343 U CN204188343 U CN 204188343U CN 201420625557 U CN201420625557 U CN 201420625557U CN 204188343 U CN204188343 U CN 204188343U
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Abstract
The utility model discloses the pick-up unit of a kind of Urea pipe leakage rate and electrical property, belong to a kind of pipe performance pick-up unit of vehicle maintenance service, described pick-up unit comprises filtering pressure reducing valve, described filtering pressure reducing valve is connected with pneumatic ball valve by pipeline, pneumatic ball valve is connected by the test side of pipeline with Urea pipe, and described test side is for installing Urea pipe to be detected; Also comprise solenoid valve in described pick-up unit, described solenoid valve is by the pipeline between pipeline communication filtering pressure reducing valve and pneumatic ball valve, and described solenoid valve is also connected with pneumatic ball valve by pipeline; Pipeline between described pneumatic ball valve and test side is also provided with pressure switch and temperature sensor.The pick-up unit of a kind of Urea pipe leakage rate provided by the utility model and electrical property detects convenient to operation, and leakage rate and the electrical property of all kinds of Urea pipe can be detected simultaneously, and be suitable for carrying out batch detection, device low cost of manufacture, range of application is wide.
Description
Technical field
The utility model relates to a kind of pipe performance pick-up unit of vehicle maintenance service, and in particular, the utility model relates generally to the pick-up unit of a kind of Urea pipe leakage rate and electrical property.
Background technology
Since country greatly develops automobile environment-protection industry, China SCR (SCR) technology has had significant progress.From the second half year in 2013, SCR system installation amount increased, and also stands in the breach as the Urea pipe of one of SCR system part.Early stage Urea pipe leakage rate detects and mainly examines-observe bubble by water, but water inspection exists the problem of checker's erroneous judgement and inefficiency, is not too applicable to large batch of detection.Although also there is the air-leakage detector of specialty on the market, basic source is in import, and fancy price allows medium-sized and small enterprises be difficult to bear, and air-leakage detector is that chargeding performance does not detect.In this case, be necessary do further research for the device for detecting performance of Urea pipe in prior art and improve.
Utility model content
One of the purpose of this utility model is for above-mentioned deficiency, provides the pick-up unit of a kind of Urea pipe leakage rate and electrical property, too high to expect to solve air-leakage detector use cost in prior art, and can not carry out the technical matterss such as electrical property detection.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
The pick-up unit of a kind of Urea pipe leakage rate provided by the utility model and electrical property, described pick-up unit comprises filtering pressure reducing valve, described filtering pressure reducing valve is connected with pneumatic ball valve by pipeline, pneumatic ball valve is connected by the test side of pipeline with Urea pipe, and described test side is for installing Urea pipe to be detected; Also comprise solenoid valve in described pick-up unit, described solenoid valve is by the pipeline between pipeline communication filtering pressure reducing valve and pneumatic ball valve, and described solenoid valve is also connected with pneumatic ball valve by pipeline; Pipeline between described pneumatic ball valve and test side is also provided with pressure switch and temperature sensor, and described pressure switch and temperature sensor all access programmable logic controller (PLC); Also comprise programmable power supply in described pick-up unit, described programmable power supply accesses programmable logic controller (PLC) and test side respectively.
As preferably, further technical scheme is: the pipeline between described filtering pressure reducing valve and pneumatic ball valve is also provided with reduction valve.
Further technical scheme is: the pipeline between described reduction valve and pneumatic ball valve is also provided with manual ball valve.
Further technical scheme is: described pneumatic ball valve is multiple, and each pneumatic ball valve is all connected with respective manual ball valve, test side, and described each pneumatic ball valve is also connected with solenoid valve respectively by pipeline.
Further technical scheme is: described test side is placed in pipeline fast-assembling adjusting part.
Further technical scheme is: the pipeline that described solenoid valve is connected with pipeline between filtering pressure reducing valve, pneumatic ball valve is also provided with pneumatic two and connects part.
Further technical scheme is: described pneumatic two inside connecting part are also provided with oil sprayer.
Further technical scheme is: the inside of described filtering pressure reducing valve is provided with oil mist separator.
Compared with prior art, one of the beneficial effects of the utility model are: gas is entered by filtering pressure reducing valve and through pneumatic ball valve, and pneumatic ball valve is opened under solenoid valve effect, gas directly enters the Urea pipe of test side by pipeline, in this process, pressure switch on pipeline, temperature sensor and programmable power supply gather the force value of Urea pipe respectively, temperature value and current parameters and power, and transfer in Programmable Logic Controller respectively and process, the mode compared by preset value draws testing result, detect convenient to operation, and leakage rate and the electrical property of all kinds of Urea pipe can be detected simultaneously, and be suitable for carrying out batch detection, device low cost of manufacture, range of application is wide.
Accompanying drawing explanation
Fig. 1 is the structural representation for illustration of the utility model embodiment;
In figure, 1 be filtering pressure reducing valve, 2 be pneumatic ball valve, 3 be test side, 4 be Urea pipe, 5 be solenoid valve, 6 be pressure switch, 7 be temperature sensor, 8 be programmable logic controller (PLC), 9 be programmable power supply, 10 be reduction valve, 11 be manual ball valve, 12 be pipeline fast-assembling adjusting part, 13 connect part, 14 for man-machine interface for pneumatic two.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Shown in figure 1, an embodiment of the present utility model is the pick-up unit of a kind of Urea pipe leakage rate and electrical property, this pick-up unit comprises filtering pressure reducing valve 1, filtering pressure reducing valve 1 is connected with pneumatic ball valve 2 by pipeline, be connected with the test side 3 of Urea pipe 4 by pipeline by pneumatic ball valve 2, Urea pipe 4 to be detected is installed in the effect of aforementioned test side 3 again; Pick-up unit in the present embodiment also comprises solenoid valve 5, by solenoid valve 5 by the pipeline between pipeline communication filtering pressure reducing valve 1 and pneumatic ball valve 2, is also connected with pneumatic ball valve 2 by pipeline by solenoid valve 5 simultaneously; What is more important, the pipeline between aforesaid pneumatic ball valve 2 and test side 3 is also provided with pressure switch 6 and temperature sensor 7, and pressure switch 6 and temperature sensor 7 are all accessed programmable logic controller (PLC) 8; In addition, the pick-up unit in the present embodiment also should comprise programmable power supply 9, and programmable power supply 9 is accessed respectively programmable logic controller (PLC) 8 and test side 3.
In the present embodiment, gas is entered by filtering pressure reducing valve and through pneumatic ball valve, and pneumatic ball valve is opened under solenoid valve effect, gas directly enters the Urea pipe of test side by pipeline, in this process, pressure switch on pipeline, temperature sensor and programmable power supply gather the force value of Urea pipe respectively, temperature value and current parameters and power, and transfer in Programmable Logic Controller respectively and process, the mode compared by preset value draws testing result, detect convenient to operation, and leakage rate and the electrical property of all kinds of Urea pipe can be detected simultaneously.
Preferred technical scheme is, also can by above-mentioned programmable logic controller (PLC) access man-machine interface 14, this man-machine interface is a touch-screen, screen is provided with test button, and programmable logic controller (PLC) is contrasted by setting value the electrical property detected parameters that obtains and result, leakage rate detected parameters and result limit, read for operator.
For reducing the pressure of source of the gas further, also the pipeline between above-mentioned filtering pressure reducing valve 1 and pneumatic ball valve 2 can set up reduction valve 10.And the pipeline between reduction valve 10 and pneumatic ball valve 2 can also be provided with manual ball valve 11, previous manual ball valve 11 is opened often in device work, time only for maintenance.Just the manual ball valve on this pipeline is closed separately when indivedual pipeline needs repairing, normally detect not affect other pipeline.
As mentioned here above, above-mentioned pick-up unit can detect many Urea pipes simultaneously, the structure coordinated with it is set to multiple by pneumatic ball valve 2, and each pneumatic ball valve 2 is all connected with respective manual ball valve 11, test side 3, and described each pneumatic ball valve 2 is also connected with solenoid valve 5 respectively by pipeline, namely pneumatic ball valve 2, manual ball valve 11, a test side 3 form an independent detecting unit in systems in which, and multiple detecting unit accesses reduction valve 10 and solenoid valve 5 all in parallel.
Go out as shown in Figure 1, in another embodiment of the present utility model, for the Urea pipe making pick-up unit can adapt to all size detects, above-mentioned test side 3 can be placed in pipeline fast-assembling adjusting part 12.Can be adjusted according to Urea length of tube difference by aforesaid fast-assembling adjusting part 12, with handled easily, it realizes the structure that principle is similar to telescopic chute, no longer describes in detail herein.
Can be lubricated for making the commutation element solenoid valve 5 in pick-up unit and executive component pneumatic ball valve 2, the pipeline that can be connected with pipeline between filtering pressure reducing valve 1, pneumatic ball valve 2 at above-mentioned solenoid valve 5 is installed pneumatic two and connect part 13, oil sprayer is installed in the inside that can connect part 13 pneumatic two like this; According to aforesaid thinking, as the total valve of whole pick-up unit, in the inside of filtering pressure reducing valve 1, oil mist separator can be installed, thus play the effect of clean dry source of the gas, to ensure whole signal piping particularly thing to be checked, i.e. the cleanliness of Urea pipe inside.
The above-mentioned preferred embodiment of the present invention in actual use, gas enters pipeline by filtering pressure reducing valve 1, successively through manual ball valve 11 and pneumatic ball valve 2, under the effect of solenoid valve 5, pneumatic ball valve 2 is opened, and gas enters the inside of Urea pipe to be measured via pipeline, meanwhile, pressure switch 6 on pipeline gathers current pressure and temperature with temperature sensor 7, and the temperature signal collected and pressure signal transfer to Programmable Logic Controller.According to aforesaid mode, the pressure signal detected and temperature signal are all transferred to programmable logic controller (PLC) with temperature sensor 7 by pressure switch 6 in each detecting unit respectively.Programmable logic controller (PLC) calculates leakage rate according to the pressure loss (pressure difference) before and after preset time, temperature value, leakage rate and setting value being compared, provides judged result; Then programmable power supply carries out energising detection to Urea pipe to be measured, measures the Data Concurrents such as the power of wherein heating element, electric current and compares with setting value to programmable logic controller (PLC), provide judged result.Two results all by representing qualified, otherwise are defective.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (8)
1. the pick-up unit of a Urea pipe leakage rate and electrical property, it is characterized in that: described pick-up unit comprises filtering pressure reducing valve (1), described filtering pressure reducing valve (1) is connected with pneumatic ball valve (2) by pipeline, pneumatic ball valve (2) is connected with the test side (3) of Urea pipe (4) by pipeline, and described test side (3) are for installing Urea pipe (4) to be detected;
Also comprise solenoid valve (5) in described pick-up unit, described solenoid valve (5) is by the pipeline between pipeline communication filtering pressure reducing valve (1) and pneumatic ball valve (2), and described solenoid valve (5) is also connected with pneumatic ball valve (2) by pipeline;
Pipeline between described pneumatic ball valve (2) and test side (3) is also provided with pressure switch (6) and temperature sensor (7), described pressure switch (6) and temperature sensor (7) all access programmable logic controller (PLC) (8);
Also comprise programmable power supply (9) in described pick-up unit, described programmable power supply (9) accesses programmable logic controller (PLC) (8) and test side (3) respectively.
2. the pick-up unit of Urea pipe leakage rate according to claim 1 and electrical property, is characterized in that: the pipeline between described filtering pressure reducing valve (1) and pneumatic ball valve (2) is also provided with reduction valve (10).
3. the pick-up unit of Urea pipe leakage rate according to claim 2 and electrical property, is characterized in that: the pipeline between described reduction valve (10) and pneumatic ball valve (2) is also provided with manual ball valve (11).
4. the Urea pipe leakage rate according to claim 1 or 3 and the pick-up unit of electrical property, it is characterized in that: described pneumatic ball valve (2) is for multiple, and each pneumatic ball valve (2) is all connected with respective manual ball valve (11), test side (3), and described each pneumatic ball valve (2) is also connected with solenoid valve (5) respectively by pipeline.
5. the pick-up unit of Urea pipe leakage rate according to claim 1 and electrical property, is characterized in that: described test side (3) are placed in pipeline fast-assembling adjusting part (12).
6. the pick-up unit of Urea pipe leakage rate according to claim 1 and electrical property, is characterized in that: the pipeline that described solenoid valve (5) is connected with pipeline between filtering pressure reducing valve (1), pneumatic ball valve (2) is also provided with pneumatic two and connects part (13).
7. the pick-up unit of Urea pipe leakage rate according to claim 6 and electrical property, is characterized in that: described pneumatic two inside connecting part (13) are also provided with oil sprayer.
8. the Urea pipe leakage rate according to claim 1 or 6 and the pick-up unit of electrical property, is characterized in that: the inside of described filtering pressure reducing valve (1) is provided with oil mist separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420625557.XU CN204188343U (en) | 2014-10-28 | 2014-10-28 | The pick-up unit of Urea pipe leakage rate and electrical property |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420625557.XU CN204188343U (en) | 2014-10-28 | 2014-10-28 | The pick-up unit of Urea pipe leakage rate and electrical property |
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| CN204188343U true CN204188343U (en) | 2015-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834131A (en) * | 2020-04-03 | 2021-05-25 | 曾楚涵 | Heating and ventilation pipeline leakage detection method, detection device, detection process and detection system |
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2014
- 2014-10-28 CN CN201420625557.XU patent/CN204188343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834131A (en) * | 2020-04-03 | 2021-05-25 | 曾楚涵 | Heating and ventilation pipeline leakage detection method, detection device, detection process and detection system |
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